Lefoo Presostato h735f

LEFOO Pressure switches Pressure switches used to regulate tank pressures between two preset values on electrically driven air compressors. With unloader valve (preventing starting under load) and manual auto-off override switch.

LF10 air pressure switches • • • • •

non metallic, corrosion resistant captive screw cover visible / no wire looping / ample wiring space automatic unloader valve / manual “auto-off”override facility easy adjustment, no drift pressure setting 2 x NC s 12A 240Vac

type operating pressure min ON max OFF PSI PSI LF10-1H1/50-80 25 100 LF10-1H1/85-115 35 150 LF10-1H1/110-150 50 175

LF10

differential range PSI 20-30 30-40 35-55

factory setting PSI 50-80 85-115 110-150

pipe fitting

motor rating 240V 1.5kW 1.5kW 1.5kW

1/4 NPT 1/4 NPT 1/4 NPT

price

98.00 98.00 98.00

LF18 three-phase air compressor pressure switch Designed to regulate tank pressure between two preset values on three-phase electrically driven compressors. • • • •

non-metallic, corrosion-resistant cover easy to adjust automatic unloader valve / manual “auto-off”override facility 3 x NC s 16A 400Vac

type operating pressure differential factory min ON max OFF range setting BAR BAR BAR BAR LF18-1H1/3-5 2 8 1.2-3.5 3.6-5.0 LF18-1H1/5-7 3 11 1.4-4.0 5.3-7.0 LF18-1H1/7-10 4 16 2.0-4.4 7.8-10.0

pipe fitting

motor rating 400V G1/4” 5.5kW G1/4” 5.5kW G1/4” 5.5kW

price

141.00 141.00 141.00

LF19 water pump pressure switches LF18

Provide time tested reliable control of automatic water systems, for use as original equipment on water wells and pumping systems. Can also be used to regulate tank air pressure. • • • •

non-metallic, corrosion-resistant cover easy to adjust pulsation dampener standard 2 x NC s 16A 250Vac

type operating pressure differential min ON max OFF range BAR BAR BAR LF19-N1/2-3 1 6 0.8-3.5 LF19-N1/4-5 2 11 1.0-4.0

factory pipe motor setting fitting rating BAR 240V 2.0-3.0 G1/4” 1.5kW 4.0-5.5 G1/4” 1.5kW

price

105.00 105.00

G1/2” pipe fitting available on request LF19

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Pressure transducers / sensors T2000 pressure transducers offer consistant high levels of performance, reliability and stability. Temperature compensated ceramic sensor laser trimmed for accurate span and offset calibration ‒ ideal for applications in process control and automation, compressors, pumps and engine control. • • • • • • • •

accuracy: output: overload capability: response time: medium temperature range: electrical connection: protection class: explosion proof class:

type

T2000/20

T2000/6 T2000/10 T2000/16 T2000/20

±1% FS 4-20mA DC (1-5Vdc available on request) 150% measuring range <5ms -40°C - +125°C Hirschmann connector IP67 Ex (ia) IIC T5

measuring power range supply 0-6 bar 0-10 bar 0-16 bar 0-20 bar

8-32Vdc 8-32Vdc 8-32Vdc 8-32Vdc

output (DC) 4-20mA 4-20mA 4-20mA 4-20mA

transducer transducer transducer transducer

mechanical connection 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT

price 940.00 940.00 940.00 940.00

other pressures available on request

223

Above prices do not include VAT. E&OE