• General Instruments Consortium

Diaphragm Seals

Mumbai-based General Instruments manufactures diaphragm seals for pressure gauges and transmitters. A diaphragm seal is a protecting device used to isolate a pressure-sensing instrument from the process fluid being monitored. When the fluid is dirty, solids-laden or viscous, diaphragm seal is used with a welded diaphragm. The following types of seals are offered: Inline flow through type with flanged connection Inline flow through type (weld in) Inline flow through type (jacketed) Extended diaphragm seal Pancake type diaphragm seal Construction: Diaphragm seals consist of upper housing having screwed connection for the pressure sensing instrument and lower housing with a screwed or flanged connection for the process. The diaphragm is housed between upper and lower chambers. The upper portion of the diaphragm is filled with fluid. The materials are chosen considering the process fluid compatibility.