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Diaphragm Seals



Diaphragm seals, also named Chemical seals, will be used for pressure measuring applications where the instruments shall be protected against the process medium. Seals can be mounted to bourdon tube gauges, pressure switches and transmitters / differential pressure transmitters.

Diaphragm SealsDiaphragm Seals

Seals and the wetted parts can be manufactured from different materials considering the kind of process medium or the type of application. The seal will separate the instrument from the process medium. The pressure will be transmitted without any time delay from the seal membrane to the measuring instrument using a transmission fluid.

Schmierer-Seals are manufactured with highest quality standard, also custom-made, and will run through several test cycles on tightness and shape of the surface.

The seal and the system filling fluid (transmission fluid) will be selected and manufactured considering the application, special mounting position, temperature, pressure situation and hygienic/sanitary procedures. Schmierer manufactures a broad range of diaphragm seals for all kind of applications.

diaphragm seal Homogenizing machines  diaphragm seal compression nut  sterile diaphragm seals
LEFT: Bourdon tube gauge with seal for homogenisers
CENTER: Bourdon tube gauge with seal acc. DIN 11851 with union nut
RIGHT: Bourdon tube gauge with sterile seal connection


A repair service for seal systems is part of our standard program; our wide range of different seal types and sizes allows us to do repairs also within short time frames. We can help you to save costs and downturn times and save valuable resources at the same time.



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