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Diaphragm seals

WIKA diaphragm seals, mounted with pressure gauges, process transmitters, pressure switches etc., are recognised and valued internationally for the most difficult of measuring tasks. By using diaphragm seals, the measuring instruments can be used at extreme temperatures from  -130 to +750 °F and with aggressive, corrosive, heterogeneous, abrasive, highly viscous or toxic media. The optimal diaphragm seal designs, materials and filling media are available for each application.

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FAQ
All FAQ

When should a diaphragm seal be fitted?

Diaphragm seals are used for pressure measurements when the process medium should not come into contact with the pressurised parts of the measuring instrument or if adjustment to the harsh conditions of a process is needed.

How does a diaphragm seal work?

A diaphragm made of the appropriate material separates the medium to be measured from the measuring instrument. The internal space between the diaphragm and the pressure measuring instrument is completely filled with a system fill fluid. The process pressure is tra ... More

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