Corrosion Resistant Stainless Steel Diaphragm Pressure Gauge

Hongqi Instrument, established in 1993, is one of the leading manufacturers and suppliers of corrosion resistant stainless steel diaphragm pressure gauge in China. Providing you with low price and good service, we welcome you to wholesale the famous brands' gauge made in China at cheap price from our factory.

The diaphragm pressure gauge consists of a diaphragm isolator (diaphragm body) and a pressure gauge. The diaphragm completely separates the measured medium from the gauge interior. The sealed cavity between diaphragm and Bourdon tube is filled with silicone oil or glycerin as pressure transmission liquid. When the pressure of process medium acts on the diaphragm, the diaphragm generates tiny elastic deformation. It compresses the filling liquid and transfers pressure to the Bourdon tube. The Bourdon tube deforms under pressure, and the gear movement amplifies the displacement to rotate the pointer for pressure reading. When pressure disappears, the diaphragm and Bourdon tube rebound elastically and the pointer returns to zero. The diaphragm isolates corrosive, viscous, crystallizing or particle-containing media from entering the gauge movement, preventing corrosion and blockage.

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