LF20 High low auto gas air water liquid Pressure Switch

10-99 Pieces
100-999 Pieces
1000-9999 Pieces
>=10000 Pieces
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10 Pieces
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Company Information

Zhejiang Lefoo Controls Co., Ltd.

CN Manufacturer
Response Time
Response Rate:
US$ 10,000+
15 Years Paid Supplier Supplier Trade Assurance
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Quick Details

Place of Origin: China
Brand Name: LEFOO
Model Number: LF20
Max. Current: 15A
Max. Voltage: 240VAC
Max. Working Pressure: 500PSI
Opeating Temperature Range: -40℃ to +120℃
Media: Air Water Oil refrigerating fluid
Contact: sliver or golden plated
Diaphragm: KAPTON polyimide film
Product name: Pressure Control Switch
Connection: 1/8NPT Male, 1/4 NPT Male, G1/8Male, G1/4Male
Cover: none, cover A or cover B
Circuitry: SPST-NC, SPST-NO, SPDT-NO-C-NC, SPST-NO(adjustable)
Application: Water pumps system, pool and spa
Terminals: 1/4 blade, #8-32 screws and wire leads
Selling Units: Single item
Single package size: 56X28X16 cm
Single gross weight: 8 KG
Package Type: 100 pcs/carton

                                LF20 LEFOO High Oil Pressure Switch

          The LF20 pressure switch is specifically designed to stand up to extended duty applications. 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.





Series No.
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.
#8-32 screws, 1/4” blade, Metri-Pack


1/8"NPT Male, 1/4"NPT Male, G1/8" Male, G1/4" Male

Contact: Silver alloy, gold plated
Base: Brass
Cover: Glass reinforced polyester
Diaphragm:Polyimide film (other materials is optional according to media)


Plated Steel, plastic or stainless steel base; various base connector thread sizes; wire leads (potted & sealed).

Agency Approval














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2019. 3  Acrex  India

2019. 1  Ahr  Expo

2018. 6 Aquatech Shanghai

2018. 4 Canton Fair

2018. 4 China Refrigeration show

2018.3 MCE Milano

2018.1 AHR Chicago





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