Pressure Switches
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Mechanical Diaphragm Pressure Switches
Switches using an elastomer or metal diaphragm as the sensing element to actuate a snap-action contact, common for low to moderate pressure ranges and corrosive media when fitted with isolating diaphragms.
Piston (Direct-Acting) Pressure Switches
Switches in which a spring-opposed piston moves against process pressure to trip the contact, valued for high-pressure capability, durability, and tolerance of pulsation in hydraulic and high-pressure gas service.
Bourdon Tube and Bellows Pressure Switches
Switches that use a Bourdon tube or bellows element to convert pressure into mechanical motion, suited to higher-pressure ranges and applications needing stable repeatability.
Differential Pressure Switches
Devices that sense the difference between two pressure ports and switch at a preset delta, used for filter clog detection, flow proving, and level across vessels.
Vacuum and Compound Pressure Switches
Switches set to actuate on negative (vacuum) pressure or across a compound vacuum-to-positive range, used for suction monitoring on pumps and vapor recovery systems.
Explosion-Proof and Intrinsically Safe Pressure Switches
Switches housed in flameproof enclosures or designed for intrinsically safe circuits and certified to ATEX/IECEx/NEC, enabling installation in classified hazardous areas at wellsites and processing plants.
Electronic (Solid-State) Pressure Switches
Switches with a piezoresistive or strain-gauge sensor and electronic output (transistor or relay), often offering digital setpoint adjustment, display, and IO-Link or analog output alongside the discrete switch signal.
Wellhead Safety (HPHL) Pressure Switches/Pilots
Pressure pilots and switches that detect high or low pressure at the wellhead or surface safety system and command shutdown valve closure as part of the well control logic.
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