Diaphragm seals are used to protect pressure measuring instruments in demanding applications under difficult conditions. These diaphragm seal systems, consisting of a process transmitter, pressure sensor, pressure gauge or pressure switch with diaphragm seal, can be combined individually for each customer application. For this, a wide range of different designs, process connections, mounting types and wetted materials are available.
Due to their hygienic process connection, this model is particularly well suited for food production, pharmaceutical and biotechnology applications. The diaphragm seal can withstand the cleaning vapour temperatures occurring in the SIP processes and thus ensure a sterile connection between the medium to be measured and the diaphragm seal.
The model 990.42 with extended diaphragm is ideally suited for installation on pipelines and vessels.
Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or a flexible capillary.
For the material selection WIKA offers a variety of solutions, in which the upper body of the diaphragm seal, the extension and the wetted parts can be made of identical or different Materials. The wetted parts can, as an alternative, be electropolished.
