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Corrosion-resistant PTFE Diaphragm Pressure Gauge

A diaphragm-isolated pressure gauge that protects internal elastic elements from corrosive media via a sealing fluid.

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Corrosion-resistant PTFE Diaphragm Pressure Gauge
The diaphragm pressure gauge is a closed system consisting of a diaphragm and a pressure gauge, with the interior filled with a sealing fluid. When pressure acts on the diaphragm, it deforms, and the sealing fluid transmits force to an elastic element (Bourdon tube) within the gauge, which displays the pressure. The diaphragm isolates the gauge from corrosive fluids, protecting it from corrosion.

Performance Parameters

Elastic element
Bourdon tube
Isolation method
Diaphragm + sealing fluid force transmission

Common Materials

  • PTFE (diaphragm)
  • • Closed system with internal sealing fluid
  • • Diaphragm deforms under pressure and transmits force via sealing fluid
  • • Elastic element is a Bourdon tube
  • • Diaphragm isolates the gauge from measured media, preventing corrosion
  • • Suitable for corrosive, viscous, or particulate-laden media
  • Pressure measurement of corrosive media
  • Pressure measurement of viscous media
  • Pressure measurement of particulate-laden media

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