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Pressure Switches & Gauges

PressureTrol® Pressure monitoring on/off controllers L404F, T, V

Mercury free pressure controls with automatic limit protection for pressure systems up to 300 psi, or oil burner systems up to 150 psi. Can be used with steam, air, non-combustible gases, or fluids non-corrosive to the pressure sensing element.

L404F PressureTrol® Controllers provide operating control with automatic limit protection for pressure systems of up to 2070 kPa, or 300 psi. L404T,V PressureTrol® Controllers are for use on oil burner systems for pressures up to 1035 kPa or 150 psi. • Models available in a series of control ranges, and pressure scales in kPa and psi. • All models automatically reset and have an adjustable differential. • Models have snap switch to open or close a circuit on a pressure rise. • Case has a clear plastic cover so setpoints can be observed. • 1/4 inch—18 NPT connection for pipe on diaphragm assembly. • Ground screw terminal. L404F: • Controllers may be used with steam, air, or noncombustible gases, or fluids noncorrosive to the pressure sensing element. L404T: • High pressure limits, break a circuit on oil pressure rise above setpoint. L404V: • Low pressure limits, makes a circuit on oil pressure rise above setpoint.