WIKA
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Diaphragm seals

The optimal diaphragm seal for every process

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.

How do diaphragm seals work? | Areas of application and advantages in pressure measurement
Videos How do diaphragm seals work? | Areas of application and advantages in pressure measurement

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FAQ
FAQ

For which measuring instruments is a manufacturer's statement on regulation (EC) 1935/2004 required?

Within the EU, all articles and materials that come into contact with food (food contact materials, FCM) are subject to regulation (EC) No 1935/2004.

For food contact, the measuring instruments are typically fitted with hygienic, easy-to-clean connec ...

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What is a capsule-type diaphragm seal?

This type is especially suitable for heterogeneous media, since it is inserted directly into the medium. It has a particularly small space requirement in comparison to other diaphragm seals. The pressure is captured 'at a point'. The seal con ...

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