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Diaphragm seals

WIKA diaphragm seals (often also referred to as chemical 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 -90 to +400 °C 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
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When are flange connections used with diaphragm seals?

The combinations of diaphragm seals with flange connections can be used for processes with extreme temperatures and with aggressive, adhesive, corrosive, highly viscous, environmentally hazardous or toxic media. With its connection dimensions, the flange-type diaph ... More

Why are there different materials or coatings with diaphragm seals?

Various materials or coatings are available for diaphragm seals to allow reliable measurement of difficult media (aggressive, corrosive, abrasive, highly viscous, heterogeneous, toxic, hot or aseptic). Suitable materials or coatings are available for almost al ... More

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