Differential Pressure Switches
Cryogenic Gauges Pressure
Mid-West Instrument Differential Pressure Gauges
Mid-West Instrument Differential pressure gauges are represented in Texas and Louisiana by Tech-Quip Inc. Please contact our office for application support, and price and availability.
Model 116 Cryogenic
Cryogenic/Liquified Gas Tank Level Monitoring
Piston Type Differential Pressure Gauges & Switches
Differential Pressure is sensed by the movement of a precisely ground floating piston/magnet in a precision bore against a calibrated spring. Any variation in pressure on either side of the piston/magnet will cause the magnet to move proportionally to the change in differential pressure. A rotary pointer magnet located close to the internal magnet, but outside the pressure housing, follows the movement of the piston magnet and indicates differential pressure on the dial.
Diaphragm Differential Pressure Gauges & Switches
Differential Pressure is sensed by the movement of an elastomer diaphragm against a precision calibrated range spring. The change in position of the diaphragm in response to the change in Differential Pressure moves an internal magnet. This magnet, in turn, causes a rotary magnet external to the gauge body to rotate. This rotary magnet has a pointer attached which indicates the differential pressure on the dial.
Precision Bellows / Bourdon Type Differential Pressure Gauges & Switches