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Boiler Pressure Switch LF56

LF56 series pressure switches are mainly used to control pressure of boiler or water tower regulating system. When the system pressure exceed the setting point, the switch will cut off the circuit for protection. With SPDT contact arrangement, LF56switch can detect the pressure change and shift the internal status accordingly to control the on/off of external circuits, which is available for the pressure control, limit and alarm of non-hazardous liquid, gas and steam.

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Specification of Boiler Pressure Switch LF56

Electrical rating15A125、250、480VAC;
120 Vac\240 Vac8.0 AFL,48.0 ALR,10.0 A resistive l5.1 AFL,30.6 ALR,5.0 A resistive
Contact arrangementSPDT
Contact resistancesmaller than 25mQ
Electrical endurance50000 cycles
Working mediaair, water and oil
Working pressure5-50 psi , pressure setting: 40psi
Differential range6-14 psi
LeakageNo leakage under the pressure 85psi for 1 minute
Ambient temperature-37℃~66℃
Mechanical endurance100000 cycles


Features of LEFOO Boiler Pressure Switches

Adjustable pressure threshold setting.

Durable diaphragm and robust metal parts.

Precise pressure controll and 50000 cycle of use span.

Stable quality with many certifications  for many countries.

Available for high temperature industrial boiler steam pressure control.

Application of LEFOO Boiler Pressure Switch

The pressurecontrol  of boiler or water tower regulating system.  limit and alarm of non-hazardous liquid, gas and steam.


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