Economical price pressure switch with brass/ plated steel two base material for selection, 150 psi for 0.5-24 psi set point range, 250 psi for 25-150 psi set range max operating pressure.
Specification
Model | LF20 |
Contact form | NO/ NC/ NO+NC |
Base material | Brass/ plated steel |
Connection thread | 1/8 NPT, 1/4 NPT, G1/8, G1/4 |
Media | Air, water,motor lils, transmission oils, jet fuels and other hydrocarbon media |
Pressure range | 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 range |
Proof pressure | 500 psi |
Burst pressure | 750 psi for 0.5-24 set point range, 1250 psi for 25-150 psi set range |
Operating temperature range | -40℃ to 120℃ |
Switch type | Direct action, blade contact |
Electric rating | Resistive: 15AMP-6VDC, 8AMP-12VDC, 4AMP-24VDC |
Inductive: 1AMP-120VDC, 0.5AMP-240VDC |
Terminal | #8-32 screws, 1/4" blade |
Connection | 1/8-27NPT Male |
Material | Contact: silver alloy, gold plated; Base: brass; Cover: glass reinforced polyester; Diaphragm: polyimide film |
Options | Plated Steel, plastic or stainless steel base; various base connector threadsizse |
Wire leads (potted & sealed); Teflone or EPDM diaphragm |
Certificate | CE, RoHS, REACH |
Warranty | 12 months |
Dimensions (mm)

Tips: Working Principle of Pressure Switch.
The pressure switch is mainly used to detect the pressure of the relevant detection part. Its working principle is to sense the pressure of the external environment through the built-in sensor. When the external pressure value exceeds or falls below the safety critical point, the diaphragm of the sensor will vibrate and change, and then send out a control signal, and the signal It will guide the switch to change, so when the pressure of the environment returns to normal and critical, the internal diaphragm of the sensor will move to the original position, so that the switch will automatically reset, and then through the dedicated CPU modular signal processing technology to realize the detection of the medium pressure signal, display, alarm and control signal output to avoid unnecessary safety hazards.
Competitive price pressure switch with NO/ NC/ NO+NC three contact forms for selection, 0.5-150 psi pressure range can be chosen, 1/8 NPT, 1/4 NPT, G1/8, G1/4 connection thread. It can be used in air, water,motor lils, transmission oils, jet fuels and other hydrocarbon media.