Orifice Flange Guide - Daniel Flow 60f6a
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Product Overview ORIFICE FLANGES CATALOG SECTION P
How Daniel Orifice Flanges Provide Better Measurement Orifice flanges are one of the most economical means of measuring flow, and Daniel Orifice Flanges are manufactured to be the most accurate. Automatic machine tools enable Daniel to meet the most stringent of tolerances and recommendations for flanges as specified in ANSI B16.36, STEEL ORIFICE FLANGES, and ANSI/API 2530 (AGA #3), ORIFICE METERING OF NATURAL GAS, with careful attention given to tap location, bore smoothness, bolt and flange facings. Daniel Orifice Flanges are made of forged steel, A.S.T.M. A-105. Other materials are available on special order. FEATURES AND ADVANTAGES Bore Tolerances are well within the latest recommendations of the American Gas Association for .75 Beta ratio. Pressure Tap Hole Location is closely controlled. Tap hole centers are 15/16" from bearing faces of flanges, placing their centerline 1" from the face of the orifice plate when 1/16" gasket thickness is included. For 3" and smaller flanges: tap hole location tolerance is ± 1/64"; for 4" and larger flanges, the location tolerance is ± 1/32". Pressure Tap Holes -- Tap hole edges on the flange bore surface are carefully inspected to be free from burrs. All roughness is eliminated. Sizes are shown in the dimensional tables for this product. Flange Tap Connections -- Standard connections are 1/2" N.P.T. Other sizes on request.
Raised Face -- Daniel Raised Face Orifice Flanges are made to conform to the standard raised face dimensions in accordance with the A.N.S.I. B16.5 Flange Piping Code for all pressure ranges. Gaskets -- Two 1/16" thick precision die-cut asbestos gaskets are furnished with all Raised Face Orifice Flanges. Non asbestos gaskets are available on request. Note: When specified gasket thickness is other than 1/16", flange pressure tap location will change. Daniel offers orifice flanges/plates to meet the tolerances specified in API Chapter 14, Section 3, Part 2 (14.3). These flanges will be the units shown with precision located knock out type dowel pins as shown in "DOWEL PINS" section below. Due to the strict orifice to flange bore concentricity requirements of API 14.3, the accompanying 520 paddle type orifice plates must also have similarly close tolerance machined O.D.'s. It should be noted that due to the 14.3 concentricity requirements, slip-on and threaded orifice flanges cannot be offered to this standard. STAGGERED TAP HOLES: Daniel Orifice Flanges with staggered tap holes are available on request. These locations provide convenient clearance for instrument piping when valves must be installed adjacent to orifice flanges. Extra tap holes at bottom facilitate drainage where condensate is present.
DOWEL PINS: Alignment dowel pins of the knock-out type are furnished on request on all Raised Face Orifice Flanges. These dowel pins assure correct alignment of the flange bores as well as centering the orifice plate within the flange bore.
METER TUBES: Daniel Orifice Flanges may be purchased complete with meter tubes which meet A.G.A., A.N.S.I., and A.S.M.E. requirements. These precision built metering units provide reliable flow measurement in most any application. For details see Daniel Meter Tube Catalog.
...........................
Dimensional Diagrams RAISED FACE WELD NECK ORIFICE FLANGES
ANSI 300 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 30 RW--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
Diam. Internal Line Bore & Tolerance
A
.622 ± .022
.824 ± .022
1.049 ± .003
1.610 ± .003
2.067 ± .003
2.469 ± .003
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
3 5/8
4 1/8
C*
3
3 1/8
3 1/4
3 3/8
3 3/8
3 1/2
Diam. of Raised Face Length Through Hub Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Diam. of Hub at Point of Welding
O
0.84
1.05
1.32
1.90
2.38
2.88
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
10
10
18
25
27
35
Size in Inches
3
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
3.068 ± .003
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
3 1/2
3 5/8
3 15/16
4 3/8
4 5/8
5 1/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
13/16
13/16
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5/14
3/4 x 5 1/4
3/4 x 5 1/4
7/8 x 5 3/4
1 x 6 1/2
1 1/8 x 7 1/4
Jackscrew Size & Length
3/4 x 3
3/4 x 3
3/4 x 3
3/4 x 3
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
43
66
106
152
216
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
5 5/8
5 3/4
6 1/4
6 3/8
6 5/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 7 1/2
1 1/4 x 8
1 1/4 x 8 1/4
1 1/4 x 8 1/2
1 1/2 x 9 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
448
596
741
887
1311
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. ?To be specified by purchaser. NOTE: 1/2" and 3/4" 30 RW orifice flanges are not recognized by ANSI B16.36.
327
ANSI 400 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 40 RW--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
3 1/2
4 1/16
4 5/8
4 7/8
5 3/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
7/8 x 6 1/4
1x7
1 1/8 x 8
1 1/4 x 8 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
82
136
213
309
429
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 3/8
2 1/2
2 5/8
2 3/4
3
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
5 7/8
6
6 1/2
6 5/8
6 7/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 3/8
1 1/2
1 1/2
1 5/8
1 7/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/4 x 8 3/4
1 3/8 x 9 1/2
1 3/8 x 9 3/4
1 1/2 x 10 1/4
1 3/4 x 11 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 6 1/2
Approx. Weight (Pounds)
554
705
863
1066
1555
*4" and larger Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. ?To be specified by purchaser. ?3" and smaller, same as class 300.
ANSI 600 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 60 RW--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
Minimum Flange Thickness
N*
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
4
4 5/8
5 1/4
6
6 1/8
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1x7
1 1/8 x 8
1 1/4 x 8 3/4
1 1/4 x 9
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
103
195
278
454
553
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23 3/4
27
29 1/4
32
37
Minimum Flange Thickness
N*
2 3/4
3
3 1/4
3 1/2
4
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
6 1/2
7
7 1/4
7 1/2
8
Hub Diam. at Base
H
17
19 1/2
21 1/2
24
28 1/4
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 3/4
23 3/4
25 3/4
28 1/2
33
Flange Drilling Template: Diam. of Holes
1 1/2
1 5/8
1 3/4
1 3/4
2
Flange Drilling Template: Number of Holes
20
20
20
24
24
Flange Drilling Template: Size & Length of Studs
1 3/8 x 9 3/4
1 1/2 x 10 3/4
1 5/8 x 11 1/2
1 5/8 x 12
1 7/8 x 13 3/4
Jackscrew Size & Length
1 x 5 1/2
1 x 5 1/2
1 x 6 1/2
1 x 6 1/2
1x8
Approx. Weight (Pounds)
815
1113
1306
1622
2320
*4" and larger Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. ?To be specified by purchaser. ?3" and smaller, same as class 300.
ANSI 900 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 90 RW--CLASS 900 (2220 P.S.I.G. C.W.P.)? Size in Inches
3
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .004
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
9 1/2
11 1/2
15
18 1/2
21 1/2
24
Minimum Flange Thickness
N*
1 1/2
1 3/4
2 3/16
2 1/2
2 3/4
3 1/8
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
4
4 1/2
5 1/2
6 3/8
7 1/4
7 7/8
Hub Diam. at Base
H
5
6 1/4
9 1/4
11 3/4
14 1/2
16 1/2
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 1/2
9 1/4
12 1/2
15 1/2
18 1/2
21
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
Flange Drilling Template: Number of Holes
8
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 1/8 x 7
1 1/8 x 8
1 3/8 x 9
1 3/8 x 9 3/4
1 3/8 x 10 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
79
129
263
445
634
872
*Does not include 1/4" Raised Face. ?To be specified by purchaser. ?2 1/2" and smaller, same as class 1500.
ANSI 1500 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 150 RW--CLASS 1500 (3705 P.S.I.G. C.W.P.) Size in Inches
1
1 1/2
2
2 1/2
3
4
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
5 7/8
7
8 1/2
9 5/8
10 1/2
12 1/4
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2 1/8
2
2 7/8
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
3 1/4
3 1/2
4
4 1/8
4 5/8
4 7/8
Hub Diam. at Base
H
2 1/16
2 3/4
4 1/8
4 7/8
5 1/4
6 3/8
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4
4 7/8
6 1/2
7 1/2
8
9 1/2
Flange Drilling Template: Diam. of Holes
1
1 1/8
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 x 6 1/4
7/8 x 6
1 x 6 1/2
1 1/8 x 7 1/4
1 1/4 x 8
Jackscrew Size & Length
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4
3/4 x 4
3/4 x 4 1/2
Approx. Weight (Pounds)
26
45
65
98
123
182
Size in Inches
6
8
10
12
A
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
15 1/2
19
23
26 1/2
Minimum Flange Thickness
N*
3 1/4
3 5/8
4 1/4
4 7/8
8 1/2
10 5/8
12 3/4
15
6 3/4
8 3/8
10
11 1/8
Diam. Internal Line Bore & Tolerance
Diam. of Raised Face Length Through Hub
C*
Hub Diam. at Base
H
9
11 1/2
14 1/2
17 3/4
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
12 1/2
15 1/2
19
22 1/2
Flange Drilling Template: Diam. of Holes
1 1/2
1 3/4
2
2 1/8
Flange Drilling Template: Number of Holes
12
12
12
16
Flange Drilling Template: Size & Length of Studs
1 3/8 x 10 3/4
1 5/8 x 12
1 7/8 x 14
2 x 15 3/4
Jackscrew Size & Length
3/4 x 5 1/2
1x7
1x8
1x9
Approx. Weight (Pounds)
407
675
1099
1706
*Does not include 1/4" Raised Face. ?To be specified by purchaser.
ANSI 2500 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 250 RW--CLASS 2500 (6170 P.S.I.G. C.W.P.) Size in Inches
1
1 1/2
2
2 1/2
3
4
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
6 1/4
8
9 1/4
10 1/2
12
14
Minimum Flange Thickness
N*
1 1/2
1 3/4
2
2 1/4
2 5/8
3
2
2 7/8
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
3 5/8
4 3/8
5
5 5/8
6 5/8
7 1/2
Hub Diam. at Base
H
2 1/4
3 1/8
3 3/4
4 1/2
5 1/4
6 1/2
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4 1/4
5 3/4
6 3/4
7 3/4
9
10 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/8
1 1/4
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 1/8 x 7
1 x 7 1/4
1 1/8 x 8
1 1/4 x 9 1/4
1 1/2 x 10 1/2
Jackscrew Size & Length
5/8 x 4
3/4 x 4
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
3/4 x 5 1/2
Approx. Weight (Pounds)
26
56
84
104
188
292
Size in Inches
6
8
10
12
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance
A
Diam. of Flange
J
19
21 3/4
26 1/2
30
Minimum Flange Thickness
N*
4 1/4
5
6 1/2
7 1/4
8 1/2
10 5/8
12 3/4
15
C*
10 3/4
12 1/2
16 1/2
18 1/4
Diam. of Raised Face Length Through Hub Hub Diam. at Base
H
9 1/4
12
14 3/4
17 3/8
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
14 1/2
17 1/4
21 1/4
24 3/8
Flange Drilling Template: Diam. of Holes
2 1/8
2 1/8
2 5/8
2 7/8
Flange Drilling Template: Number of Holes
8
12
12
12
Flange Drilling Template: Size & Length of Studs
2 x 14 1/4
2 x 15 3/4
2 1/2 x 20
2 3/4 x 22
Jackscrew Size & Length
3/4 x 8
1x9
1 x 11
1 x 12
Approx. Weight (Pounds)
756
1152
2136
3216
*Does not include 1/4" Raised Face. ?To be specified by purchaser.
Dimensional Diagrams RING-TYPE T WELD NECK ORIFICE FLANGES
ANSI 300 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 30 JW--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
A.P.I. Ring Numbers
R-11
R-13
R-16
R-20
R-23
R-26
Diam. Internal Line Bore & Tolerance
A
.622 ± .002
.824 ± .002
1.049 ± .003
1.610 ± .003
2.067 ± .003
2.469 ± .003
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
Length Through Hub
C*
3
3 1/8
3 1/4
3 3/8
3 3/8
3 1/2
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Diam. of Hub at Point of Welding
O
0.84
1.05
1.32
1.90
2.38
2.88
Pitch Diam. of Ring and Groove
L2
1 11/32
1 11/16
2
2 11/16
3 1/4
4
Depth of Groove
M1
7/32
1/4
1/4
1/4
5/16
5/16
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
5/8
3/4
3/4
7/8
3/4
7/8
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 5 1/2
5/8 x 5 3/4
5/8 x 5 1/2
3/4 x 5 3/4
5/8 x 5 1/2
3/4 x 6 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3 1/2
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4
Approx. Weight (Pounds)
10
10
15
25
30
46
Size in Inches
3
4
6
8
10
12
A.P.I. Ring Numbers
R-31
R-37
R-45
R-49
R-53
R-57
A
3.068 ± .003
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 7/16
1 5/8
1 7/8
2
Length Through Hub
C*
3 1/2
3 5/8
3 7/8
4 3/8
4 5/8
5 1/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
4 7/8
5 7/8
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
7/8
7/8
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5 3/4
3/4 x 5 3/4
3/4 x 6 1/4
7/8 x 6 3/4
1 x 7 3/4
1 1/8 x 8 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4
3/4 x 4
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
56
65
107
169
250
365
Size in Inches
14
16
18
20
24
A.P.I. Ring Numbers
R-61
R-65
R-69
R-73
R-77
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
Length Through Hub
C*
5 5/8
5 3/4
6 1/4
6 3/8
6 5/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
16 1/2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 8 1/2
1 1/4 x 9 1/4
1 1/4 x 9 1/2
1 1/4 x 10
1 1/2 x 11
Jackscrew Size & Length
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1x7
Approx. Weight (Pounds)
490
640
785
960
1410
*Does not include depth of Ring Groove. ?To be specified by purchaser. NOTE: 30 JW Series Orifice Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 40 JW--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
14
A.P.I. Ring Numbers
R-37
R-45
R-49
R-53
R-57
R-61
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
? ± .005
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
23
Minimum Flange Thickness
N*
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
2 3/8
Length Through Hub
C*
3 1/2
4 1/16
4 5/8
4 7/8
5 3/8
5 7/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
16 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
14.00
Pitch Diam. of Ring and Groove
L2
5 7/8
8 5/16
10 5/8
12 3/4
15
16 1/2
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
20 1/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/4
7/8 x 6 3/4
1 x 7 1/2
1 1/8 x 8 1/2
1 1/4 x 9
1 1/4 x 9 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
90
145
220
325
450
590
Size in Inches
16
18
20
24
A.P.I. Ring Numbers
R-65
R-69
R-73
R-77
A
? ± .005
? ± .007
? ± .007
? ± .007
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/2
2 5/8
2 3/4
3
Length Through Hub
C*
6
6 1/2
6 5/8
6 7/8
Hub Diam. at Base
H
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/2
1 1/2
1 5/8
1 7/8
Flange Drilling Template: Number of Holes
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 3/8 x 10
1 3/8 x 10 1/4
1 1/2 x 11
1 3/4 x 12 1/4
Jackscrew Size & Length
1 x 5 1/2
1x7
1x7
1x8
Approx. Weight (Pounds)
745
910
1160
1665
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?3" and smaller, same as Class 300. NOTE: 24" 40 JW and 60 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 60 JW--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
14
A.P.I. Ring Numbers
R-37
R-45
R-49
R-53
R-57
R-61
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
? ± .005
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
23 3/4
Minimum Flange Thickness
N*
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
2 3/4
Length Through Hub
C*
4
4 5/8
5 1/4
6
6 1/8
6 1/2
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
17
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
14.00
Pitch Diam. of Ring and Groove
L2
5 7/8
8 5/16
10 5/8
12 3/4
15
16 1/2
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
20 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
1 1/2
Flange Drilling Template: Number of Holes
8
12
12
16
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/2
1 x 7 1/2
1 1/8 x 8 1/2
1 1/4 x 9
1 1/4 x 9 3/4
1 3/8 x 10 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1x7
Approx. Weight (Pounds)
90
197
284
472
571
830
Size in Inches
16
18
20
24
A.P.I. Ring Numbers
R-65
R-69
R-73
R-77
A
? ± .005
? ± .007
? ± .007
? ± .007
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
27
29 1/4
32
37
Minimum Flange Thickness
N*
3
3 1/4
3 1/2
4
Length Through Hub
C*
7
7 1/4
7 1/2
8
Hub Diam. at Base
H
19 1/2
21 1/2
24
28 1/4
Diam. of Hub at Point of Welding
O
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
23 3/4
25 3/4
28 1/2
33
Flange Drilling Template: Diam. of Holes
1 5/8
1 3/4
1 3/4
2
Flange Drilling Template: Number of Holes
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/2 x 11 1/4
1 5/8 x 12
1 5/8 x 12 3/4
1 7/8 x 14 1/2
Jackscrew Size & Length
1x7
1x7
1x8
1x9
Approx. Weight (Pounds)
1135
1330
1660
2375
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?3" and smaller, same as Class 300. NOTE: 24" 40 JW and 60 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 900 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 90 JW--CLASS 900 (2220 P.S.I.G. C.W.P.)? Size in Inches
3
4
6
8
10
12
A.P.I. Ring Numbers
R-31
R-37
R-45
R-49
R-53
R-57
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .004
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
9 1/2
11 1/2
15
18 1/2
21 1/2
24
Minimum Flange Thickness
N*
1 1/2
1 3/4
2 3/16
2 1/2
2 3/4
3 1/8
Length Through Hub
C*
4
4 1/2
5 1/2
6 3/8
7 1/4
7 7/8
Hub Diam. at Base
H
5
6 1/4
9 1/4
11 3/4
14 1/2
16 1/2
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
4 7/8
5 7/8
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 1/2
9 1/4
12 1/2
15 1/2
18 1/2
21
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
Flange Drilling Template: Number of Holes
8
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/2
1 1/8 x 7 1/2
1 1/8 x 8 1/2
1 3/8 x 10
1 3/8 x 10 3/4
1 3/8 x 11
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1x7
1x7
Approx. Weight (Pounds)
85
140
280
475
675
930
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?2 1/2" and smaller, same as Class 1500.
ANSI 1500 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 150 JW--CLASS 1500 (3705 P.S.I.G. C.W.P.)? Size in Inches
1
1 1/2
2
2 1/2
3
4
A.P.I. Ring Numbers
R-16
R-20
R-24
R-27
R-35
R-39
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
5 7/8
7
8 1/2
9 5/8
10 1/2
12 1/4
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2 1/8
Length Through Hub
C*
3 1/4
3 1/2
4
4 1/8
4 5/8
4 7/8
Hub Diam. at Base
H
2 1/16
2 3/4
4 1/8
4 7/8
5 1/4
6 3/8
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pitch Diam. of Ring and Groove
L2
2
2 11/16
3 3/4
4 1/4
5 3/8
6 3/8
Depth of Groove
M1
1/4
1/4
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4
4 7/8
6 1/2
7 1/2
8
9 1/2
Flange Drilling Template: Diam. of Holes
1
1 1/8
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 x 6 1/4
7/8 x 6 1/2
1x7
1 1/8 x 7 3/4
1 1/4 x 8 1/2
Jackscrew Size & Length
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4 1/2
3/4 x 4 1/2
3/4 x 5 1/2
Approx. Weight (Pounds)
27
41
71
100
131
200
Size in Inches
6
8
10
12**
A.P.I. Ring Numbers
R-46
R-50
R-54
R-58
A
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
15 1/2
19
23
26 1/2
Minimum Flange Thickness
N*
3 1/4
3 5/8
4 1/4
4 7/8
Length Through Hub
C*
6 3/4
8 3/8
10
11 1/8
Hub Diam. at Base
H
9
11 1/2
14 1/2
17 3/4
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
3/8
7/16
7/16
9/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
12 1/2
15 1/2
19
22 1/2
Flange Drilling Template: Diam. of Holes
1 1/2
1 3/4
2
2 1/8
Flange Drilling Template: Number of Holes
12
12
12
16
Flange Drilling Template: Size & Length of Studs
1 3/8 x 11
1 5/8 x 12 3/4
1 7/8 x 14 3/4
2 x 15 3/4
Jackscrew Size & Length
3/4 x 7
1x8
1x9
1 x 10
Approx. Weight (Pounds)
435
715
1165
1790
*Does not include depth of Ring Groove. **Tap hole location exceeds A.G.A. limits due to Ring Groove interference. Tap hole location from the plate is 1 1/8". ?To be specified by purchaser. NOTE: 8"-12" 150 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 2500 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 250 JW--CLASS 2500 (6170 P.S.I.G. C.W.P.)? Size in Inches
1
1 1/2
2
2 1/2
3
4
A.P.I. Ring Numbers
R-18
R-23
R-26
R-28
R-32
R-38
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
6 1/4
8
9 1/4
10 1/2
12
14
Minimum Flange Thickness
N*
1 1/2
1 3/4
2
2 1/4
2 5/8
3
Length Through Hub
C*
3 5/8
4 3/8
5
5 5/8
6 5/8
7 1/2
Hub Diam. at Base
H
2 1/4
3 1/8
3 3/4
4 1/2
5 1/4
6 1/2
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pitch Diam. of Ring and Groove
L2
2 3/8
3 1/4
4
4 3/8
5
6 3/16
Depth of Groove
M1
1/4
5/16
5/16
3/8
3/8
7/16
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4 1/4
5 3/4
6 3/4
7 3/4
9
10 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/8
1 1/4
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/4
1 1/8 x 7 1/2
1 x 7 3/4
1 1/8 x 8 3/4
1 1/4 x 9 3/4
1 1/2 x 11
Jackscrew Size & Length
5/8 x 4
3/4 x 4 1/2
3/4 x 4 1/2
3/4 x 5 1/2
3/4 x 7
3/4 x 7
Approx. Weight (Pounds)
26
56
84
104
188
292
Size in Inches
6**
8**
10**
12**
A.P.I. Ring Numbers
R-47
R-51
R-55
R-60
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance
A
Diam. of Flange
J
19
21 3/4
26 1/2
30
Minimum Flange Thickness
N*
4 1/4
5
6 1/2
7 1/4
Length Through Hub
C*
10 3/4
12 1/2
16 1/2
18 1/4
Hub Diam. at Base
H
9 1/4
12
14 3/4
17 3/8
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
9
11
13 1/2
16
Depth of Groove
M1
1/2
9/16
11/16
11/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
14 1/2
17 1/4
21 1/4
24 3/8
Flange Drilling Template: Diam. of Holes
2 1/8
2 1/8
2 5/8
2 7/8
Flange Drilling Template: Number of Holes
8
12
12
12
Flange Drilling Template: Size & Length of Studs
2 x 14 3/4
2 x 16 3/4
2 1/2 x 21 1/4
2 3/4 x 23 1/4
Jackscrew Size & Length
3/4 x 9
1 x 10
1 x 13
1 x 13
Approx. Weight (Pounds)
756
1152
2136
3216
*Does not include depth of Ring Groove. **Tap hole location exceeds A.G.A. limits due to Ring Groove interference. Tap hole location from the plate is as follows: 6"--1 1/16", 8"--1 1/8", 10"--1 1/4", 12"--1 1/4" ?To be specified by purchaser. NOTE: 4"-12" 250 JW Orifice Flanges are not recognized by ANSI B16.36.
Dimensional Diagrams RAISED FACE SLIP-ON ORIFICE FLANGES
NOTE: Pressure Tap Holes must be drilled through pipe wall after installation.
ANSI 300 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 30 RS--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
Bore of Flange
U
7/8
1 3/32
1 3/8
1 31/32
2 7/16
2 15/16
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
3 5/8
4 1/8
Diam. of Raised Face Length Through Hub
C*
1 13/16
1 7/8
1 7/8
1 7/8
1 15/16
2
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
9
9
15
19
23
31
Size in Inches
3
4
6
8
10
12
U
3 19/32
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Bore of Flange
Diam. of Raised Face Length Through Hub
C*
2 1/16
2 1/8
2 1/8
2 7/16
2 5/8
2 7/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
13/16
13/16
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5 1/4
3/4 x 5 1/4
3/4 x 5 1/4
7/8 x 5 3/4
1 x 6 1/2
1 1/8 x 7 1/4
Jackscrew Size & Length
3/4 x 3
3/4 x 3
3/4 x 3
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
39
60
100
134
196
281
Size in Inches
14
16
18
20
24
Bore of Flange
U
14 5/32
16 5/32
18 3/16
20 7/32
24 1/4
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
Diam. of Raised Face
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
16 1/4
18 1/2
21
23
27 1/4
3 1/4
3 1/2
3 3/4
4 3/16
Length Through Hub
C*
3
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 7 1/2
1 1/4 x 8
1 1/4 x 8 1/4
1 1/4 x 8 1/2
1 1/2 x 9 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
380
530
691
781
1201
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. NOTE: 1/2" and 3/4" 30 RS Orifice Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 40 RS--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Bore of Flange
U
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
Diam. of Raised Face
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
6 3/16
8 1/2
10 5/8
12 3/4
15
Length Through Hub
C*
2
2 1/4
2 11/16
2 7/8
3 1/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
7/8 x 6 1/4
1x7
1 1/8 x 8
1 1/4 x 8 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
64
110
169
239
333
*Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 40 RS and 60 RS Serires Orifice Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 60 RS--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Bore of Flange
U
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
Minimum Flange Thickness
N*
Diam. of Raised Face
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
6 3/16
8 1/2
10 5/8
12 3/4
15
Length Through Hub
C*
2 1/8
2 5/8
3
3 3/8
3 5/8
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1x7
1 1/8 x 8
1 1/4 x 8 3/4
1 1/4 x 9
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
74
160
230
354
430
*Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 40 RS and 60 RS Serires Orifice Flanges are not recognized by ANSI B16.36.
Dimensional Diagrams RAISED FACE THREADED ORIFICE FLANGES All Class 300, 400 & 600, 3" and smaller. Class 400 & 600, 4" and larger.
NOTE: Pressure Tap Holes must be drilled through pipe wall after installation.
ANSI 300 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 30 RT--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
Diam. of Raised Face Length Through Hub
C*
1 13/16
1 7/8
1 7/8
1 7/8
Height to Counter Bore
Y
1 1/8
1 1/8
1 7/16
1 15/32
Face Counter Bore Height
Z
1/2
1/2
3/4
23/32
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
9
9
15
19
Size in Inches
2
2 1/2
3
4
Diam. of Flange
J
6 1/2
7 1/2
8 1/4
10
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
1 15/16
2
2 1/16
2 1/8
Height to Counter Bore
Y
1 1/2
1 3/4
1 13/16
1 7/8
Face Counter Bore Height
Z
11/16
9/16
9/16
9/16
Hub Diam. at Base
H
3 5/16
3 15/16
4 5/8
5 3/4
Pressure Tap Hole Size
X
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
5
5 7/8
6 5/8
7 7/8
Flange Drilling Template: Diam. of Holes
11/16
13/16
13/16
13/16
Flange Drilling Template: Number of Holes
8
8
8
8
Flange Drilling Template: Size & Length of Studs
5/8 x 5
3/4 x 5 1/4
3/4 x 5 1/4
3/4 x 5 1/4
Jackscrew Size & Length
5/8 x 3
5/8 x 3
3/4 x 3
3/4 x 3
Approx. Weight (Pounds)
23
31
39
60
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. Available in Larger Sizes on Request. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 40 RT--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
Diam. of Flange
J
10
Minimum Flange Thickness
N
1 3/8**
Diam. of Raised Face
6 3/16
Length Through Hub
C
2**
Height to Counter Bore
Y
1 11/16
Face Counter Bore Height
Z
--
Hub Diam. at Base
H
5 3/4
Pressure Tap Hole Size
X
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
Flange Drilling Template: Diam. of Holes
1
Flange Drilling Template: Number of Holes
8
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
Jackscrew Size & Length
3/4 x 4
Approx. Weight (Pounds)
64
**Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 60 RT--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
Diam. of Flange
J
10 3/4
Minimum Flange Thickness
N
1 1/2**
Diam. of Raised Face
6 3/16
Length Through Hub
C
2 1/8**
Height to Counter Bore
Y
1 7/8
Face Counter Bore Height
Z
--
Hub Diam. at Base
H
6
Pressure Tap Hole Size
X
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
Flange Drilling Template: Diam. of Holes
1
Flange Drilling Template: Number of Holes
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
Jackscrew Size & Length
3/4 x 4
Approx. Weight (Pounds)
74
**Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
Orifice Bore Calculations ORIFICE BORE CALCULATIONS The Daniel Orifice Calculation Department is a separate engineering branch responsible for the fast and accurate calculation of orifice plate bores. The computerized department utilizes the latest published trade statistics to figure and calculations. Their calculations are recorded on a reproducible data sheet from which a copy is made and sent to the customer. The original is kept on file for 5 years. To insure prompt calculations, information relative to either gas, liquid or steam flow should be furnished.
Orifice Plate Bore Calculations Daniel maintains one engineering section for calculation of orifice plate bores, furnishing them on reproducible data sheets. The following data should be furnished when ordering calculations:
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
Meter differential range. Is the orifice to deliver maximum flow at the above differential pressure? If otherwise, please specify. In liquid flow, is flow volume at operating temperature desired, or at some other base temperature? In liquid or steam flows, what type meter is being used? Liquid over mercury or dry (mercury-less) meter? Tag, identification or item number. Fluid being measured. Operating temperature in degrees F. Operating pressure in Lbs. per square inch. Flow rate. . Specific gravity or density. . Viscosity, at the operating conditions. . Barometric pressure. . Pressure base. . Temperature base. . Liquid seal and its specific gravity. . Pipe inside diameter, or pipe schedule. . Orifice plate material. . Orifice flange rating and facing. . Pressure tap location. Flange? Radius? Vena Contracta? Pipe?
Orifice Plate/Ring t Holder Brochure Overview-General Universal Orifice Plates Cat. No. 500 Overview Dimensions Orifice Plate Seals How to Order Paddle Type Orifice Plates Cat. No. 520 Overview Dimensions Class 125-150, 250-350, 400, 600, 900, 1500, 2500 Weights Special Bores How to Order Ring t Orifice Plate Holders Overview Dimensions-Class 300/600, 900, 1500, 2500 Plates for RJ Holders How to Order Holding Blocks Orifice Bore Calculations
Flange Tap Orifice Flange Union Brochure Overview Raised Face (RW) Drawings, , Materials/Parts Dimensions- Class 300. 400, 600, 900, 1500, 2500 Ring t (JW) Drawings, Materials/Parts Dimensions- Class 300. 400, 600, 900, 1500, 2500 Slip-On (RS) Drawings, Materials/Parts Dimensions- Class 300. 400, 600 Threaded (RT) Drawings, Materials/Parts Dimensions- Class 300. 400, 600 Orifice Bore Calculation Information
How Daniel Orifice Flanges Provide Better Measurement Orifice flanges are one of the most economical means of measuring flow, and Daniel Orifice Flanges are manufactured to be the most accurate. Automatic machine tools enable Daniel to meet the most stringent of tolerances and recommendations for flanges as specified in ANSI B16.36, STEEL ORIFICE FLANGES, and ANSI/API 2530 (AGA #3), ORIFICE METERING OF NATURAL GAS, with careful attention given to tap location, bore smoothness, bolt and flange facings. Daniel Orifice Flanges are made of forged steel, A.S.T.M. A-105. Other materials are available on special order. FEATURES AND ADVANTAGES Bore Tolerances are well within the latest recommendations of the American Gas Association for .75 Beta ratio. Pressure Tap Hole Location is closely controlled. Tap hole centers are 15/16" from bearing faces of flanges, placing their centerline 1" from the face of the orifice plate when 1/16" gasket thickness is included. For 3" and smaller flanges: tap hole location tolerance is ± 1/64"; for 4" and larger flanges, the location tolerance is ± 1/32". Pressure Tap Holes -- Tap hole edges on the flange bore surface are carefully inspected to be free from burrs. All roughness is eliminated. Sizes are shown in the dimensional tables for this product. Flange Tap Connections -- Standard connections are 1/2" N.P.T. Other sizes on request.
Raised Face -- Daniel Raised Face Orifice Flanges are made to conform to the standard raised face dimensions in accordance with the A.N.S.I. B16.5 Flange Piping Code for all pressure ranges. Gaskets -- Two 1/16" thick precision die-cut asbestos gaskets are furnished with all Raised Face Orifice Flanges. Non asbestos gaskets are available on request. Note: When specified gasket thickness is other than 1/16", flange pressure tap location will change. Daniel offers orifice flanges/plates to meet the tolerances specified in API Chapter 14, Section 3, Part 2 (14.3). These flanges will be the units shown with precision located knock out type dowel pins as shown in "DOWEL PINS" section below. Due to the strict orifice to flange bore concentricity requirements of API 14.3, the accompanying 520 paddle type orifice plates must also have similarly close tolerance machined O.D.'s. It should be noted that due to the 14.3 concentricity requirements, slip-on and threaded orifice flanges cannot be offered to this standard. STAGGERED TAP HOLES: Daniel Orifice Flanges with staggered tap holes are available on request. These locations provide convenient clearance for instrument piping when valves must be installed adjacent to orifice flanges. Extra tap holes at bottom facilitate drainage where condensate is present.
DOWEL PINS: Alignment dowel pins of the knock-out type are furnished on request on all Raised Face Orifice Flanges. These dowel pins assure correct alignment of the flange bores as well as centering the orifice plate within the flange bore.
METER TUBES: Daniel Orifice Flanges may be purchased complete with meter tubes which meet A.G.A., A.N.S.I., and A.S.M.E. requirements. These precision built metering units provide reliable flow measurement in most any application. For details see Daniel Meter Tube Catalog.
...........................
Dimensional Diagrams RAISED FACE WELD NECK ORIFICE FLANGES
ANSI 300 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 30 RW--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
Diam. Internal Line Bore & Tolerance
A
.622 ± .022
.824 ± .022
1.049 ± .003
1.610 ± .003
2.067 ± .003
2.469 ± .003
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
3 5/8
4 1/8
C*
3
3 1/8
3 1/4
3 3/8
3 3/8
3 1/2
Diam. of Raised Face Length Through Hub Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Diam. of Hub at Point of Welding
O
0.84
1.05
1.32
1.90
2.38
2.88
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
10
10
18
25
27
35
Size in Inches
3
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
3.068 ± .003
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
3 1/2
3 5/8
3 15/16
4 3/8
4 5/8
5 1/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
13/16
13/16
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5/14
3/4 x 5 1/4
3/4 x 5 1/4
7/8 x 5 3/4
1 x 6 1/2
1 1/8 x 7 1/4
Jackscrew Size & Length
3/4 x 3
3/4 x 3
3/4 x 3
3/4 x 3
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
43
66
106
152
216
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
5 5/8
5 3/4
6 1/4
6 3/8
6 5/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 7 1/2
1 1/4 x 8
1 1/4 x 8 1/4
1 1/4 x 8 1/2
1 1/2 x 9 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
448
596
741
887
1311
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. ?To be specified by purchaser. NOTE: 1/2" and 3/4" 30 RW orifice flanges are not recognized by ANSI B16.36.
327
ANSI 400 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 40 RW--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
3 1/2
4 1/16
4 5/8
4 7/8
5 3/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
7/8 x 6 1/4
1x7
1 1/8 x 8
1 1/4 x 8 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
82
136
213
309
429
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 3/8
2 1/2
2 5/8
2 3/4
3
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
5 7/8
6
6 1/2
6 5/8
6 7/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 3/8
1 1/2
1 1/2
1 5/8
1 7/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/4 x 8 3/4
1 3/8 x 9 1/2
1 3/8 x 9 3/4
1 1/2 x 10 1/4
1 3/4 x 11 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 6 1/2
Approx. Weight (Pounds)
554
705
863
1066
1555
*4" and larger Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. ?To be specified by purchaser. ?3" and smaller, same as class 300.
ANSI 600 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 60 RW--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
Minimum Flange Thickness
N*
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
4
4 5/8
5 1/4
6
6 1/8
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1x7
1 1/8 x 8
1 1/4 x 8 3/4
1 1/4 x 9
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
103
195
278
454
553
Size in Inches
14
16
18
20
24
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23 3/4
27
29 1/4
32
37
Minimum Flange Thickness
N*
2 3/4
3
3 1/4
3 1/2
4
16 1/4
18 1/2
21
23
27 1/4
Diam. of Raised Face Length Through Hub
C*
6 1/2
7
7 1/4
7 1/2
8
Hub Diam. at Base
H
17
19 1/2
21 1/2
24
28 1/4
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 3/4
23 3/4
25 3/4
28 1/2
33
Flange Drilling Template: Diam. of Holes
1 1/2
1 5/8
1 3/4
1 3/4
2
Flange Drilling Template: Number of Holes
20
20
20
24
24
Flange Drilling Template: Size & Length of Studs
1 3/8 x 9 3/4
1 1/2 x 10 3/4
1 5/8 x 11 1/2
1 5/8 x 12
1 7/8 x 13 3/4
Jackscrew Size & Length
1 x 5 1/2
1 x 5 1/2
1 x 6 1/2
1 x 6 1/2
1x8
Approx. Weight (Pounds)
815
1113
1306
1622
2320
*4" and larger Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. ?To be specified by purchaser. ?3" and smaller, same as class 300.
ANSI 900 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 90 RW--CLASS 900 (2220 P.S.I.G. C.W.P.)? Size in Inches
3
4
6
8
10
12
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .004
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
9 1/2
11 1/2
15
18 1/2
21 1/2
24
Minimum Flange Thickness
N*
1 1/2
1 3/4
2 3/16
2 1/2
2 3/4
3 1/8
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Diam. of Raised Face Length Through Hub
C*
4
4 1/2
5 1/2
6 3/8
7 1/4
7 7/8
Hub Diam. at Base
H
5
6 1/4
9 1/4
11 3/4
14 1/2
16 1/2
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 1/2
9 1/4
12 1/2
15 1/2
18 1/2
21
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
Flange Drilling Template: Number of Holes
8
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 1/8 x 7
1 1/8 x 8
1 3/8 x 9
1 3/8 x 9 3/4
1 3/8 x 10 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
79
129
263
445
634
872
*Does not include 1/4" Raised Face. ?To be specified by purchaser. ?2 1/2" and smaller, same as class 1500.
ANSI 1500 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 150 RW--CLASS 1500 (3705 P.S.I.G. C.W.P.) Size in Inches
1
1 1/2
2
2 1/2
3
4
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
5 7/8
7
8 1/2
9 5/8
10 1/2
12 1/4
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2 1/8
2
2 7/8
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
3 1/4
3 1/2
4
4 1/8
4 5/8
4 7/8
Hub Diam. at Base
H
2 1/16
2 3/4
4 1/8
4 7/8
5 1/4
6 3/8
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4
4 7/8
6 1/2
7 1/2
8
9 1/2
Flange Drilling Template: Diam. of Holes
1
1 1/8
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 x 6 1/4
7/8 x 6
1 x 6 1/2
1 1/8 x 7 1/4
1 1/4 x 8
Jackscrew Size & Length
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4
3/4 x 4
3/4 x 4 1/2
Approx. Weight (Pounds)
26
45
65
98
123
182
Size in Inches
6
8
10
12
A
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
15 1/2
19
23
26 1/2
Minimum Flange Thickness
N*
3 1/4
3 5/8
4 1/4
4 7/8
8 1/2
10 5/8
12 3/4
15
6 3/4
8 3/8
10
11 1/8
Diam. Internal Line Bore & Tolerance
Diam. of Raised Face Length Through Hub
C*
Hub Diam. at Base
H
9
11 1/2
14 1/2
17 3/4
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
12 1/2
15 1/2
19
22 1/2
Flange Drilling Template: Diam. of Holes
1 1/2
1 3/4
2
2 1/8
Flange Drilling Template: Number of Holes
12
12
12
16
Flange Drilling Template: Size & Length of Studs
1 3/8 x 10 3/4
1 5/8 x 12
1 7/8 x 14
2 x 15 3/4
Jackscrew Size & Length
3/4 x 5 1/2
1x7
1x8
1x9
Approx. Weight (Pounds)
407
675
1099
1706
*Does not include 1/4" Raised Face. ?To be specified by purchaser.
ANSI 2500 Class RAISED FACE WELD NECK ORIFICE FLANGES CATALOG NO. 250 RW--CLASS 2500 (6170 P.S.I.G. C.W.P.) Size in Inches
1
1 1/2
2
2 1/2
3
4
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
6 1/4
8
9 1/4
10 1/2
12
14
Minimum Flange Thickness
N*
1 1/2
1 3/4
2
2 1/4
2 5/8
3
2
2 7/8
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
3 5/8
4 3/8
5
5 5/8
6 5/8
7 1/2
Hub Diam. at Base
H
2 1/4
3 1/8
3 3/4
4 1/2
5 1/4
6 1/2
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4 1/4
5 3/4
6 3/4
7 3/4
9
10 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/8
1 1/4
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 1/8 x 7
1 x 7 1/4
1 1/8 x 8
1 1/4 x 9 1/4
1 1/2 x 10 1/2
Jackscrew Size & Length
5/8 x 4
3/4 x 4
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
3/4 x 5 1/2
Approx. Weight (Pounds)
26
56
84
104
188
292
Size in Inches
6
8
10
12
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance
A
Diam. of Flange
J
19
21 3/4
26 1/2
30
Minimum Flange Thickness
N*
4 1/4
5
6 1/2
7 1/4
8 1/2
10 5/8
12 3/4
15
C*
10 3/4
12 1/2
16 1/2
18 1/4
Diam. of Raised Face Length Through Hub Hub Diam. at Base
H
9 1/4
12
14 3/4
17 3/8
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
14 1/2
17 1/4
21 1/4
24 3/8
Flange Drilling Template: Diam. of Holes
2 1/8
2 1/8
2 5/8
2 7/8
Flange Drilling Template: Number of Holes
8
12
12
12
Flange Drilling Template: Size & Length of Studs
2 x 14 1/4
2 x 15 3/4
2 1/2 x 20
2 3/4 x 22
Jackscrew Size & Length
3/4 x 8
1x9
1 x 11
1 x 12
Approx. Weight (Pounds)
756
1152
2136
3216
*Does not include 1/4" Raised Face. ?To be specified by purchaser.
Dimensional Diagrams RING-TYPE T WELD NECK ORIFICE FLANGES
ANSI 300 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 30 JW--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
A.P.I. Ring Numbers
R-11
R-13
R-16
R-20
R-23
R-26
Diam. Internal Line Bore & Tolerance
A
.622 ± .002
.824 ± .002
1.049 ± .003
1.610 ± .003
2.067 ± .003
2.469 ± .003
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
Length Through Hub
C*
3
3 1/8
3 1/4
3 3/8
3 3/8
3 1/2
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Diam. of Hub at Point of Welding
O
0.84
1.05
1.32
1.90
2.38
2.88
Pitch Diam. of Ring and Groove
L2
1 11/32
1 11/16
2
2 11/16
3 1/4
4
Depth of Groove
M1
7/32
1/4
1/4
1/4
5/16
5/16
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
5/8
3/4
3/4
7/8
3/4
7/8
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 5 1/2
5/8 x 5 3/4
5/8 x 5 1/2
3/4 x 5 3/4
5/8 x 5 1/2
3/4 x 6 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3 1/2
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4
Approx. Weight (Pounds)
10
10
15
25
30
46
Size in Inches
3
4
6
8
10
12
A.P.I. Ring Numbers
R-31
R-37
R-45
R-49
R-53
R-57
A
3.068 ± .003
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 7/16
1 5/8
1 7/8
2
Length Through Hub
C*
3 1/2
3 5/8
3 7/8
4 3/8
4 5/8
5 1/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
4 7/8
5 7/8
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
7/8
7/8
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5 3/4
3/4 x 5 3/4
3/4 x 6 1/4
7/8 x 6 3/4
1 x 7 3/4
1 1/8 x 8 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4
3/4 x 4
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
56
65
107
169
250
365
Size in Inches
14
16
18
20
24
A.P.I. Ring Numbers
R-61
R-65
R-69
R-73
R-77
Diam. Internal Line Bore & Tolerance
A
? ± .005
? ± .005
? ± .007
? ± .007
? ± .007
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
Length Through Hub
C*
5 5/8
5 3/4
6 1/4
6 3/8
6 5/8
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
14.00
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
16 1/2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 8 1/2
1 1/4 x 9 1/4
1 1/4 x 9 1/2
1 1/4 x 10
1 1/2 x 11
Jackscrew Size & Length
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1x7
Approx. Weight (Pounds)
490
640
785
960
1410
*Does not include depth of Ring Groove. ?To be specified by purchaser. NOTE: 30 JW Series Orifice Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 40 JW--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
14
A.P.I. Ring Numbers
R-37
R-45
R-49
R-53
R-57
R-61
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
? ± .005
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
23
Minimum Flange Thickness
N*
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
2 3/8
Length Through Hub
C*
3 1/2
4 1/16
4 5/8
4 7/8
5 3/8
5 7/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
16 3/4
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
14.00
Pitch Diam. of Ring and Groove
L2
5 7/8
8 5/16
10 5/8
12 3/4
15
16 1/2
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
20 1/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/4
7/8 x 6 3/4
1 x 7 1/2
1 1/8 x 8 1/2
1 1/4 x 9
1 1/4 x 9 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
90
145
220
325
450
590
Size in Inches
16
18
20
24
A.P.I. Ring Numbers
R-65
R-69
R-73
R-77
A
? ± .005
? ± .007
? ± .007
? ± .007
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
2 1/2
2 5/8
2 3/4
3
Length Through Hub
C*
6
6 1/2
6 5/8
6 7/8
Hub Diam. at Base
H
19
21
23 1/8
27 5/8
Diam. of Hub at Point of Welding
O
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/2
1 1/2
1 5/8
1 7/8
Flange Drilling Template: Number of Holes
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 3/8 x 10
1 3/8 x 10 1/4
1 1/2 x 11
1 3/4 x 12 1/4
Jackscrew Size & Length
1 x 5 1/2
1x7
1x7
1x8
Approx. Weight (Pounds)
745
910
1160
1665
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?3" and smaller, same as Class 300. NOTE: 24" 40 JW and 60 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 60 JW--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
14
A.P.I. Ring Numbers
R-37
R-45
R-49
R-53
R-57
R-61
Diam. Internal Line Bore & Tolerance
A
4.026 ± .004
6.065 ± .004
? ± .004
? ± .005
? ± .005
? ± .005
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
23 3/4
Minimum Flange Thickness
N*
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
2 3/4
Length Through Hub
C*
4
4 5/8
5 1/4
6
6 1/8
6 1/2
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
17
Diam. of Hub at Point of Welding
O
4.50
6.63
8.63
10.75
12.75
14.00
Pitch Diam. of Ring and Groove
L2
5 7/8
8 5/16
10 5/8
12 3/4
15
16 1/2
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
20 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
1 1/2
Flange Drilling Template: Number of Holes
8
12
12
16
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/2
1 x 7 1/2
1 1/8 x 8 1/2
1 1/4 x 9
1 1/4 x 9 3/4
1 3/8 x 10 1/4
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1 x 5 1/2
1x7
Approx. Weight (Pounds)
90
197
284
472
571
830
Size in Inches
16
18
20
24
A.P.I. Ring Numbers
R-65
R-69
R-73
R-77
A
? ± .005
? ± .007
? ± .007
? ± .007
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
27
29 1/4
32
37
Minimum Flange Thickness
N*
3
3 1/4
3 1/2
4
Length Through Hub
C*
7
7 1/4
7 1/2
8
Hub Diam. at Base
H
19 1/2
21 1/2
24
28 1/4
Diam. of Hub at Point of Welding
O
16.00
18.00
20.00
24.00
Pitch Diam. of Ring and Groove
L2
18 1/2
21
23
27 1/4
Depth of Groove
M1
5/16
5/16
3/8
7/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
23 3/4
25 3/4
28 1/2
33
Flange Drilling Template: Diam. of Holes
1 5/8
1 3/4
1 3/4
2
Flange Drilling Template: Number of Holes
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/2 x 11 1/4
1 5/8 x 12
1 5/8 x 12 3/4
1 7/8 x 14 1/2
Jackscrew Size & Length
1x7
1x7
1x8
1x9
Approx. Weight (Pounds)
1135
1330
1660
2375
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?3" and smaller, same as Class 300. NOTE: 24" 40 JW and 60 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 900 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 90 JW--CLASS 900 (2220 P.S.I.G. C.W.P.)? Size in Inches
3
4
6
8
10
12
A.P.I. Ring Numbers
R-31
R-37
R-45
R-49
R-53
R-57
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .004
? ± .004
? ± .004
? ± .005
? ± .005
Diam. of Flange
J
9 1/2
11 1/2
15
18 1/2
21 1/2
24
Minimum Flange Thickness
N*
1 1/2
1 3/4
2 3/16
2 1/2
2 3/4
3 1/8
Length Through Hub
C*
4
4 1/2
5 1/2
6 3/8
7 1/4
7 7/8
Hub Diam. at Base
H
5
6 1/4
9 1/4
11 3/4
14 1/2
16 1/2
Diam. of Hub at Point of Welding
O
3.50
4.50
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
4 7/8
5 7/8
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
5/16
5/16
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 1/2
9 1/4
12 1/2
15 1/2
18 1/2
21
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
Flange Drilling Template: Number of Holes
8
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/2
1 1/8 x 7 1/2
1 1/8 x 8 1/2
1 3/8 x 10
1 3/8 x 10 3/4
1 3/8 x 11
Jackscrew Size & Length
3/4 x 4
3/4 x 4 1/2
3/4 x 5 1/2
1 x 5 1/2
1x7
1x7
Approx. Weight (Pounds)
85
140
280
475
675
930
*Does not include depth of Ring Groove. ?To be specified by purchaser. ?2 1/2" and smaller, same as Class 1500.
ANSI 1500 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 150 JW--CLASS 1500 (3705 P.S.I.G. C.W.P.)? Size in Inches
1
1 1/2
2
2 1/2
3
4
A.P.I. Ring Numbers
R-16
R-20
R-24
R-27
R-35
R-39
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
5 7/8
7
8 1/2
9 5/8
10 1/2
12 1/4
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2 1/8
Length Through Hub
C*
3 1/4
3 1/2
4
4 1/8
4 5/8
4 7/8
Hub Diam. at Base
H
2 1/16
2 3/4
4 1/8
4 7/8
5 1/4
6 3/8
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pitch Diam. of Ring and Groove
L2
2
2 11/16
3 3/4
4 1/4
5 3/8
6 3/8
Depth of Groove
M1
1/4
1/4
5/16
5/16
5/16
5/16
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4
4 7/8
6 1/2
7 1/2
8
9 1/2
Flange Drilling Template: Diam. of Holes
1
1 1/8
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1 x 6 1/4
7/8 x 6 1/2
1x7
1 1/8 x 7 3/4
1 1/4 x 8 1/2
Jackscrew Size & Length
5/8 x 4
5/8 x 4
5/8 x 4
5/8 x 4 1/2
3/4 x 4 1/2
3/4 x 5 1/2
Approx. Weight (Pounds)
27
41
71
100
131
200
Size in Inches
6
8
10
12**
A.P.I. Ring Numbers
R-46
R-50
R-54
R-58
A
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance Diam. of Flange
J
15 1/2
19
23
26 1/2
Minimum Flange Thickness
N*
3 1/4
3 5/8
4 1/4
4 7/8
Length Through Hub
C*
6 3/4
8 3/8
10
11 1/8
Hub Diam. at Base
H
9
11 1/2
14 1/2
17 3/4
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
8 5/16
10 5/8
12 3/4
15
Depth of Groove
M1
3/8
7/16
7/16
9/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
12 1/2
15 1/2
19
22 1/2
Flange Drilling Template: Diam. of Holes
1 1/2
1 3/4
2
2 1/8
Flange Drilling Template: Number of Holes
12
12
12
16
Flange Drilling Template: Size & Length of Studs
1 3/8 x 11
1 5/8 x 12 3/4
1 7/8 x 14 3/4
2 x 15 3/4
Jackscrew Size & Length
3/4 x 7
1x8
1x9
1 x 10
Approx. Weight (Pounds)
435
715
1165
1790
*Does not include depth of Ring Groove. **Tap hole location exceeds A.G.A. limits due to Ring Groove interference. Tap hole location from the plate is 1 1/8". ?To be specified by purchaser. NOTE: 8"-12" 150 JW Orifice Flanges are not recognized by ANSI B16.36.
ANSI 2500 Class RING-TYPE T WELD NECK ORIFICE FLANGES CATALOG NO. 250 JW--CLASS 2500 (6170 P.S.I.G. C.W.P.)? Size in Inches
1
1 1/2
2
2 1/2
3
4
A.P.I. Ring Numbers
R-18
R-23
R-26
R-28
R-32
R-38
Diam. Internal Line Bore & Tolerance
A
? ± .003
? ± .003
? ± .003
? ± .003
? ± .003
? ± .004
Diam. of Flange
J
6 1/4
8
9 1/4
10 1/2
12
14
Minimum Flange Thickness
N*
1 1/2
1 3/4
2
2 1/4
2 5/8
3
Length Through Hub
C*
3 5/8
4 3/8
5
5 5/8
6 5/8
7 1/2
Hub Diam. at Base
H
2 1/4
3 1/8
3 3/4
4 1/2
5 1/4
6 1/2
Diam. of Hub at Point of Welding
O
1.32
1.90
2.38
2.88
3.50
4.50
Pitch Diam. of Ring and Groove
L2
2 3/8
3 1/4
4
4 3/8
5
6 3/16
Depth of Groove
M1
1/4
5/16
5/16
3/8
3/8
7/16
Pressure Tap Hole Size
X
1/4
1/4
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
4 1/4
5 3/4
6 3/4
7 3/4
9
10 3/4
Flange Drilling Template: Diam. of Holes
1
1 1/4
1 1/8
1 1/4
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
4
4
8
8
8
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6 1/4
1 1/8 x 7 1/2
1 x 7 3/4
1 1/8 x 8 3/4
1 1/4 x 9 3/4
1 1/2 x 11
Jackscrew Size & Length
5/8 x 4
3/4 x 4 1/2
3/4 x 4 1/2
3/4 x 5 1/2
3/4 x 7
3/4 x 7
Approx. Weight (Pounds)
26
56
84
104
188
292
Size in Inches
6**
8**
10**
12**
A.P.I. Ring Numbers
R-47
R-51
R-55
R-60
? ± .004
? ± .004
? ± .005
? ± .005
Diam. Internal Line Bore & Tolerance
A
Diam. of Flange
J
19
21 3/4
26 1/2
30
Minimum Flange Thickness
N*
4 1/4
5
6 1/2
7 1/4
Length Through Hub
C*
10 3/4
12 1/2
16 1/2
18 1/4
Hub Diam. at Base
H
9 1/4
12
14 3/4
17 3/8
Diam. of Hub at Point of Welding
O
6.63
8.63
10.75
12.75
Pitch Diam. of Ring and Groove
L2
9
11
13 1/2
16
Depth of Groove
M1
1/2
9/16
11/16
11/16
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
14 1/2
17 1/4
21 1/4
24 3/8
Flange Drilling Template: Diam. of Holes
2 1/8
2 1/8
2 5/8
2 7/8
Flange Drilling Template: Number of Holes
8
12
12
12
Flange Drilling Template: Size & Length of Studs
2 x 14 3/4
2 x 16 3/4
2 1/2 x 21 1/4
2 3/4 x 23 1/4
Jackscrew Size & Length
3/4 x 9
1 x 10
1 x 13
1 x 13
Approx. Weight (Pounds)
756
1152
2136
3216
*Does not include depth of Ring Groove. **Tap hole location exceeds A.G.A. limits due to Ring Groove interference. Tap hole location from the plate is as follows: 6"--1 1/16", 8"--1 1/8", 10"--1 1/4", 12"--1 1/4" ?To be specified by purchaser. NOTE: 4"-12" 250 JW Orifice Flanges are not recognized by ANSI B16.36.
Dimensional Diagrams RAISED FACE SLIP-ON ORIFICE FLANGES
NOTE: Pressure Tap Holes must be drilled through pipe wall after installation.
ANSI 300 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 30 RS--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
2
2 1/2
Bore of Flange
U
7/8
1 3/32
1 3/8
1 31/32
2 7/16
2 15/16
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
6 1/2
7 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
3 5/8
4 1/8
Diam. of Raised Face Length Through Hub
C*
1 13/16
1 7/8
1 7/8
1 7/8
1 15/16
2
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
3 5/16
3 15/16
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
3/8
3/8
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
5
5 7/8
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
8
8
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
9
9
15
19
23
31
Size in Inches
3
4
6
8
10
12
U
3 19/32
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
8 1/4
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 5/8
1 7/8
2
5
6 3/16
8 1/2
10 5/8
12 3/4
15
Bore of Flange
Diam. of Raised Face Length Through Hub
C*
2 1/16
2 1/8
2 1/8
2 7/16
2 5/8
2 7/8
Hub Diam. at Base
H
4 5/8
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Pressure Tap Hole Size
X
3/8
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
6 5/8
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
13/16
13/16
7/8
1
1 1/8
1 1/4
Flange Drilling Template: Number of Holes
8
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
3/4 x 5 1/4
3/4 x 5 1/4
3/4 x 5 1/4
7/8 x 5 3/4
1 x 6 1/2
1 1/8 x 7 1/4
Jackscrew Size & Length
3/4 x 3
3/4 x 3
3/4 x 3
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
39
60
100
134
196
281
Size in Inches
14
16
18
20
24
Bore of Flange
U
14 5/32
16 5/32
18 3/16
20 7/32
24 1/4
Diam. of Flange
J
23
25 1/2
28
30 1/2
36
Minimum Flange Thickness
N*
Diam. of Raised Face
2 1/8
2 1/4
2 3/8
2 1/2
2 3/4
16 1/4
18 1/2
21
23
27 1/4
3 1/4
3 1/2
3 3/4
4 3/16
Length Through Hub
C*
3
Hub Diam. at Base
H
16 3/4
19
21
23 1/8
27 5/8
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
20 1/4
22 1/2
24 3/4
27
32
Flange Drilling Template: Diam. of Holes
1 1/4
1 3/8
1 3/8
1 3/8
1 5/8
Flange Drilling Template: Number of Holes
20
20
24
24
24
Flange Drilling Template: Size & Length of Studs
1 1/8 x 7 1/2
1 1/4 x 8
1 1/4 x 8 1/4
1 1/4 x 8 1/2
1 1/2 x 9 1/2
Jackscrew Size & Length
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 4 1/2
1 x 5 1/2
Approx. Weight (Pounds)
380
530
691
781
1201
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. NOTE: 1/2" and 3/4" 30 RS Orifice Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 40 RS--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Bore of Flange
U
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
10
12 1/2
15
17 1/2
20 1/2
Minimum Flange Thickness
N*
Diam. of Raised Face
1 3/8
1 5/8
1 7/8
2 1/8
2 1/4
6 3/16
8 1/2
10 5/8
12 3/4
15
Length Through Hub
C*
2
2 1/4
2 11/16
2 7/8
3 1/8
Hub Diam. at Base
H
5 3/4
8 1/8
10 1/4
12 5/8
14 3/4
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
10 5/8
13
15 1/4
17 3/4
Flange Drilling Template: Diam. of Holes
1
1
1 1/8
1 1/4
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
16
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
7/8 x 6 1/4
1x7
1 1/8 x 8
1 1/4 x 8 1/2
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 4 1/2
1 x 4 1/2
Approx. Weight (Pounds)
64
110
169
239
333
*Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 40 RS and 60 RS Serires Orifice Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RAISED FACE SLIP-ON ORIFICE FLANGES CATALOG NO. 60 RS--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
6
8
10
12
Bore of Flange
U
4 19/32
6 23/32
8 23/32
10 7/8
12 7/8
Diam. of Flange
J
10 3/4
14
16 1/2
20
22
Minimum Flange Thickness
N*
Diam. of Raised Face
1 1/2
1 7/8
2 3/16
2 1/2
2 5/8
6 3/16
8 1/2
10 5/8
12 3/4
15
Length Through Hub
C*
2 1/8
2 5/8
3
3 3/8
3 5/8
Hub Diam. at Base
H
6
8 3/4
10 3/4
13 1/2
15 3/4
Pressure Tap Hole Size
X
1/2
1/2
1/2
1/2
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
11 1/2
13 3/4
17
19 1/4
Flange Drilling Template: Diam. of Holes
1
1 1/8
1 1/4
1 3/8
1 3/8
Flange Drilling Template: Number of Holes
8
12
12
16
20
Flange Drilling Template: Size & Length of Studs
7/8 x 6
1x7
1 1/8 x 8
1 1/4 x 8 3/4
1 1/4 x 9
Jackscrew Size & Length
3/4 x 4
3/4 x 4
3/4 x 4 1/2
1 x 5 1/2
1 x 5 1/2
Approx. Weight (Pounds)
74
160
230
354
430
*Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 40 RS and 60 RS Serires Orifice Flanges are not recognized by ANSI B16.36.
Dimensional Diagrams RAISED FACE THREADED ORIFICE FLANGES All Class 300, 400 & 600, 3" and smaller. Class 400 & 600, 4" and larger.
NOTE: Pressure Tap Holes must be drilled through pipe wall after installation.
ANSI 300 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 30 RT--CLASS 300 (740 P.S.I.G. C.W.P.) Size in Inches
1/2
3/4
1
1 1/2
Diam. of Flange
J
3 3/4
4 5/8
4 7/8
6 1/8
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
1 3/8
1 11/16
2
2 7/8
Diam. of Raised Face Length Through Hub
C*
1 13/16
1 7/8
1 7/8
1 7/8
Height to Counter Bore
Y
1 1/8
1 1/8
1 7/16
1 15/32
Face Counter Bore Height
Z
1/2
1/2
3/4
23/32
Hub Diam. at Base
H
1 1/2
1 7/8
2 1/8
2 3/4
Pressure Tap Hole Size
X
1/4
1/4
1/4
1/4
Flange Drilling Template: Diam. of Bolt Circle
2 5/8
3 1/4
3 1/2
4 1/2
Flange Drilling Template: Diam. of Holes
9/16
11/16
11/16
13/16
Flange Drilling Template: Number of Holes
4
4
4
4
Flange Drilling Template: Size & Length of Studs
1/2 x 4 3/4
5/8 x 5
5/8 x 5
3/4 x 5 1/4
Jackscrew Size & Length
1/2 x 3
1/2 x 3
5/8 x 3
5/8 x 3
Approx. Weight (Pounds)
9
9
15
19
Size in Inches
2
2 1/2
3
4
Diam. of Flange
J
6 1/2
7 1/2
8 1/4
10
Minimum Flange Thickness
N*
1 1/2
1 1/2
1 1/2
1 1/2
3 5/8
4 1/8
5
6 3/16
Diam. of Raised Face Length Through Hub
C*
1 15/16
2
2 1/16
2 1/8
Height to Counter Bore
Y
1 1/2
1 3/4
1 13/16
1 7/8
Face Counter Bore Height
Z
11/16
9/16
9/16
9/16
Hub Diam. at Base
H
3 5/16
3 15/16
4 5/8
5 3/4
Pressure Tap Hole Size
X
3/8
3/8
3/8
1/2
Flange Drilling Template: Diam. of Bolt Circle
5
5 7/8
6 5/8
7 7/8
Flange Drilling Template: Diam. of Holes
11/16
13/16
13/16
13/16
Flange Drilling Template: Number of Holes
8
8
8
8
Flange Drilling Template: Size & Length of Studs
5/8 x 5
3/4 x 5 1/4
3/4 x 5 1/4
3/4 x 5 1/4
Jackscrew Size & Length
5/8 x 3
5/8 x 3
3/4 x 3
3/4 x 3
Approx. Weight (Pounds)
23
31
39
60
*Class 300 Flanges C and N dimensions include 1/16" Raised Face. Available in Larger Sizes on Request. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
ANSI 400 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 40 RT--CLASS 400 (990 P.S.I.G. C.W.P.)? Size in Inches
4
Diam. of Flange
J
10
Minimum Flange Thickness
N
1 3/8**
Diam. of Raised Face
6 3/16
Length Through Hub
C
2**
Height to Counter Bore
Y
1 11/16
Face Counter Bore Height
Z
--
Hub Diam. at Base
H
5 3/4
Pressure Tap Hole Size
X
1/2
Flange Drilling Template: Diam. of Bolt Circle
7 7/8
Flange Drilling Template: Diam. of Holes
1
Flange Drilling Template: Number of Holes
8
Flange Drilling Template: Size & Length of Studs
7/8 x 5 3/4
Jackscrew Size & Length
3/4 x 4
Approx. Weight (Pounds)
64
**Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
ANSI 600 Class RAISED FACE THREADED ORIFICE FLANGES CATALOG NO. 60 RT--CLASS 600 (1480 P.S.I.G. C.W.P.)? Size in Inches
4
Diam. of Flange
J
10 3/4
Minimum Flange Thickness
N
1 1/2**
Diam. of Raised Face
6 3/16
Length Through Hub
C
2 1/8**
Height to Counter Bore
Y
1 7/8
Face Counter Bore Height
Z
--
Hub Diam. at Base
H
6
Pressure Tap Hole Size
X
1/2
Flange Drilling Template: Diam. of Bolt Circle
8 1/2
Flange Drilling Template: Diam. of Holes
1
Flange Drilling Template: Number of Holes
8
Flange Drilling Template: Size & Length of Studs
7/8 x 6
Jackscrew Size & Length
3/4 x 4
Approx. Weight (Pounds)
74
**Class 400-600 Flanges C and N dimensions do not include 1/4" Raised Face. Available in Larger Sizes on Request. ?3" and smaller, same as Class 300. NOTE: 1/2" and 3/4" 30 RT, 40 RT AND 60 RT Series Flanges are not recognized by ANSI B16.36.
Orifice Bore Calculations ORIFICE BORE CALCULATIONS The Daniel Orifice Calculation Department is a separate engineering branch responsible for the fast and accurate calculation of orifice plate bores. The computerized department utilizes the latest published trade statistics to figure and calculations. Their calculations are recorded on a reproducible data sheet from which a copy is made and sent to the customer. The original is kept on file for 5 years. To insure prompt calculations, information relative to either gas, liquid or steam flow should be furnished.
Orifice Plate Bore Calculations Daniel maintains one engineering section for calculation of orifice plate bores, furnishing them on reproducible data sheets. The following data should be furnished when ordering calculations:
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
Meter differential range. Is the orifice to deliver maximum flow at the above differential pressure? If otherwise, please specify. In liquid flow, is flow volume at operating temperature desired, or at some other base temperature? In liquid or steam flows, what type meter is being used? Liquid over mercury or dry (mercury-less) meter? Tag, identification or item number. Fluid being measured. Operating temperature in degrees F. Operating pressure in Lbs. per square inch. Flow rate. . Specific gravity or density. . Viscosity, at the operating conditions. . Barometric pressure. . Pressure base. . Temperature base. . Liquid seal and its specific gravity. . Pipe inside diameter, or pipe schedule. . Orifice plate material. . Orifice flange rating and facing. . Pressure tap location. Flange? Radius? Vena Contracta? Pipe?
Orifice Plate/Ring t Holder Brochure Overview-General Universal Orifice Plates Cat. No. 500 Overview Dimensions Orifice Plate Seals How to Order Paddle Type Orifice Plates Cat. No. 520 Overview Dimensions Class 125-150, 250-350, 400, 600, 900, 1500, 2500 Weights Special Bores How to Order Ring t Orifice Plate Holders Overview Dimensions-Class 300/600, 900, 1500, 2500 Plates for RJ Holders How to Order Holding Blocks Orifice Bore Calculations
Flange Tap Orifice Flange Union Brochure Overview Raised Face (RW) Drawings, , Materials/Parts Dimensions- Class 300. 400, 600, 900, 1500, 2500 Ring t (JW) Drawings, Materials/Parts Dimensions- Class 300. 400, 600, 900, 1500, 2500 Slip-On (RS) Drawings, Materials/Parts Dimensions- Class 300. 400, 600 Threaded (RT) Drawings, Materials/Parts Dimensions- Class 300. 400, 600 Orifice Bore Calculation Information
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