Adjustable pressure switches

Some typical applications would be as an air compressor pressure switch where the compressor could be set with the adjustable pressure switch to complete the circuit (turn on the compressor) to increase the pressure and then turn off the air compressor pressure switch once the desired maximum pressure set with the adjustable pressure switch has been achieved.
72 Similar settings with an adjustable pressure switch can be achieved with a water pump pressure switch where the water pump pressure switch can be set to control the water pressure within a desired pressure range.

Ultra-long life pressure switches – PS11 series
For low pressure applications, the longevity of our PS11 series is hard to beat.
A life expectancy of 1 million cycles means long-term reliability.
Their snap-action microswitch resets automatically and meets or exceeds industry standards. Brass housing offers chemical resistance at an affordable price.
This model formerly named PDPA / PDPF.

Kapton diaphragm OEM subminiature pressure switch – PS31 series
These compact pressure switches are designed for OEM applications. Made economical with metal blade contacts in lieu of microswitches, the PS31 series features Kapton diaphragms.
Kapton Polyimide maintains excellent physical properties over a wide termperature range. It also offers superb chemical resistance with no known organic solvents.
This switch formerly known as PMLA / PMLF / PS-JL. 

Elastomer diaphragm OEM subminiature pressure switch – PS32 series
These compact pressure switches are designed for OEM applications. Made economical by using metal blade contacts in lieu of microswitches, this series features long-lasting Elastomer diaphragms in three materials.
Elastomer diaphragms offer increased sensitivity and life for applications without temperature extremes.
This model formerly named PS-JL.

Economical miniature pressure switches – PS41 series
PS41 miniature pressure switches are designed for demanding applications where space and/or price are strong concerns.
The PS41 switches utilize a piston/diaphragm design, which incorporates the high proof pressure of piston technology with the sensitivity of diaphragm designs. Switches are field adjustable via an Allen head screw that is hidden to protect against unauthorized tampering.
This model formerly named PDA / PDF / PDN / PS-E.

Kapton diaphragm OEM subminiature pressure switch – PS51 series
These compact pressure switches are designed for OEM applications. This economical design uses metal blade contacts in lieu of microswitches and features Kapton diaphragms.
Kapton polyimide maintains excellent physical properties over a wide temperature range. It also offers superb chemical resistance with no known organic solvents.
This model formerly named PMMA / PMMF.

Elastomer diaphragm OEM subminiature pressure switch – PS52 series
These compact pressure switches are designed for OEM applications. Designed to be economical by using metal blade contacts in lieu of microswitches they feature long-lasting Elastomer diaphragms. Elastomer diaphragms offer increased sensitivity and life for applications without temperature extremes.
This model formerly named  PMMA / PMMF.

OEM subminiature pressure switch – PS61 series
These compact pressure switches are designed with the OEM in mind.
They are equipped with high proof pressure capabilities for demanding hydraulic applications such as forklifts, scissor lifts, and off road equipment.
This switch formerly known as PMHA / PMHF / PS-J.

General purpose mini pressure switches – PS71 series
These versatile general purpose switches with snap action microswitches can be used in a wide range of hydraulic and pneumatic applications.
Their proven piston / diaphragm design offers outstanding accuracy over a very wide pressure range with an outstanding 9000psi proof pressure. Their modular construction allows Gems to offer a large number of standard pressure fittings in two materials as well as numerous electrical ratings and terminations. Users can easily configure this model to meet their needs.
This model formerly named PDAH / PDFH / PHDA / PHDF / PS-EH.

Rugged cylindrical pressure switch – PS75 series
Gems PS75 series have all metal surfaces for overload stops and deliver reliable operation under extremely high pressure surges.
They are designed with a wear disc and cushioning ring for increased life. The switches use a piston/diaphragm design which combines the high proof pressure of piston technology with the sensitivity of a diaphragm design. They can be field or factoryadjusted.
This switch formerly known as PACA / PFCA / PDCA / PDCF / PDCM / PS-FA / PS-FB.