Mid-West Instrument is one
of the leading designers and manufacturers of differential pressure gauges and
switches in the U.S. The firm's experienced engineers and technicians utilize
the latest equipment for engineering, manufacturing and testing the firm's
gauge and switch products.
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 Type
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
• Dry Design, No Liquid Fill Required for
Over-range Protection
• Glass Reinforced Thermoplastic Gauge Front
Is Standard
• Weather Resistant & Corrosion Resistant Gauge
Front
