LF20
LF20 Extended Duty Pressure Switch
0.5~150Psi
| 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: N.O./N.O. dual circuit and N.C./N.C. dual circuit. | ||
| Terminals | #8-32 screws, 1/4” blade, Metri-Pack | |
| Connection | 1/8″NPT Male, 1/4″NPT Male, G1/8″ Male, G1/4″ Male | |
| Materials | Contact: Silver alloy, gold plated | |
| Base: Brass | ||
| Cover: Glass-reinforced polyester | ||
| Diaphragm: Polyimide film (other materials are optional according to media) | ||
| Options | Plated Steel, plastic, or stainless steel base; various base connector thread sizes; wire leads (potted & sealed). | |
| Approvals | UL, CUL, CE | |
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 pools and spas, anti-skid braking systems, water pump systems, dental air compressors, heavy construction, off-road equipment, and other pressure control systems.
Mechanical life 3,000,000 cycles
The life of a general general-purpose pressure switch maybe 100,000 to 200,000 cycles, such as the LF08. 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 cycles!