LF20 Extended Duty Pressure Switch (0.5-150 PSI)

The LF20 pressure switch is specifically designed to stand up to extended duty applications. Once the cut on and off pressure is seted, it will become an automatic pressure control switch, help you achive automatic start and stop of equipment. This switch is factory set but capable of field adjustment. It features different diaphragms for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected.

Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity. It can be widely used for pool and spa, anti-skid braking systems, water pump systems, and dental air compressors, heavy construction, off road equipments and other pressure control systems.

Mechanical life 3,000,000 times!

The life of a general general-purpose pressure switch may be 100,000 to 200,000 times, such as the LF08 of LEFOO pressure switch. There may be no problems in general industries, but in some industries where high pressure is used, frequent replacements may occur, which causes a lot of trouble for maintenance work. For this reason, we have specially developed the LF20 vacuum pressure switch, which has a service life of up to 2 to 3 million times!

Series No.	LF20
Medium	Air, motor oils, transmission oils, jet fuels and other similar hydrocarbon medium; water (provide with special diaphragm material)
Pressure Set Point	Factory set from 0.5 to 150 PSI
Max Operating Pressure	150 PSI for 0.5-24 PSI set point range 250 PSI for 25-150 PSI set point range
Proof Pressure	500 PSI
Burst Pressure	750 PSI for 0.5-24 PSI set point range 1250 PSI for 25-150 PSI set point range
Operating Temperature Range	-40° C to ~ 120° C
Switch Type	Direct action, blade contact
Electric Rating	Resistive: 15 AMP- 6 VDC 8 AMP- 12 VDC 4 AMP- 24 VDC Inductive: 1 AMP- 120 VAC 0.5 AMP- 240 VAC
Contact Arrangement	SPST-N.O., N.C., 1 circuit adjustable dual circuit, or 2 circuits adjustable dual circuit. Also available areN.O./N.O. dual circuit and N.C./N.C. dual circuit.”F.
Terminals	#8-32 screws, 1/4” blade, Metri-Pack
Connection	1/8"NPT Male, 1/4"NPT Male, G1/8" Male, G1/4" Male
Material	Contact: Silver alloy, gold plated Base: Brass Cover: Glass reinforced polyester Diaphragm: Polyimide film (other materials is optional according to media)
Options	Plated Steel, plastic or stainless steel base; various base connector thread sizes; wire leads (potted & sealed).
Agency Approval	UL, CUL, CE