Email Us

Water Pump Pressure Switch LF10-W

The LF10- W is a rugged pressure switch designed for the demanding requirements of high pressure and heavy-duty commercial water pump systems.

LF10-W series pressure switches provide time-tested, reliable control for automatic water systems. The switch is universally acceptable for use as original equipment on water well pumps or pumping systems. Water pump pressure switches suitable for use on all types of pumps including jet, submersible, and reciprocating. 2 poles, plastic enclosure, diaphragm actuated. Individually boxed.


Enjoy the MAMCO Edge:  LF17-W Water Pressure Switch


  • Outstanding Service from Highly Trained and Experienced Personnel

  • Expedient Delivery: Get your products on time and within budget

  • Engineering Expertise: Custom solutions to meet your specifications and critical requirements

  • Advanced Design Software

  • We invest in R&D to discover versatile, cost-effective solutions for our customers

  • LEFOO is ISO-9001-2015 certified,CE,RoHS Authorized


Specification of LEFOO Water Pump Pressure Switch

ModelMediaOperating Pressure RangeFactory SettingDifferentialElectrical ElectricalContact ArrangementConnection
LF10-WS(LF10A-WS)Water15 -82psi20-35psi15- 30psi120VAC、20A; (120VAC、26A); 240VAC、12A; (240VAC、26A)NO1/4NPT Male or Female
Water30-100psi30-50psi20-35psi
Water35- 150psi85-115psi30-40psi
LF10-WR(LF10A-WR)Water80-15psi50-30psi17-30psi240VAC、20A; (120VAC、26A); 240VAC、12A; (240VAC、26A)NO1/4NPT Male or Female
Water100- 30psi100-75psi25-30psi
Water150-35psi125-95psi30-45psi

Optional connections

1/4 NPT,3/8NPT,R1/4,R3/8,G1/4,G3/8,NPT1/4 long male,G1/4 Bolt Connector

LEFOO Specification of LEFOO Water Pump Pressure Switch LF10-W

Features of LEFOO Water Pump Pressure Switches

5HP Heavy Duty Rating

250 PSI Max

No Wire Looping

Straight Thru Wiring

Visible Contacts 2 Pole Double Break

No Drift Pressure Settings

Captive Cover Screw

Ample Wiring Room

Ground Screws

Easy to Adjust

Stainless Steel Connection is optional

Other Connection fittings are optional



Application of LEFOO Water Pump Pressure Switches

water well pumps or automatic pumping systems.

Product Inquiry

News & Blog