Model 990.23

Diaphragm Seals

For the pulp and paper industry

Selected documents
Sales contact

WIKA Danmark A/S

Tel.:
+45 4581 9600
Fax:
+45 4581 9622
sales.as@wika.com

Applications

  • Highly viscous, hardening or particle-laden media
  • Pulp manufacture
  • Waste-paper processing

Special Features

  • Rotatable retainer flange
  • Versions with 90° pipe elbow and vibration damper

Description

Diaphragm seals are used for the protection of pressure measuring instruments in applications with difficult media. In diaphragm seal systems, the diaphragm of the diaphragm seal effects the separation of the instrument and the medium.
The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.

For the implementation of demanding customer applications, there are a wide variety of designs, materials and system fill fluids available.

For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 "Application, operating principle, designs".

The model 990.23 diaphragm seal has been developed for use in pulp manufacture or waste-paper processing applications.

Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary. Optionally, there are pipe elbows and vibration dampers available.

For the material selection WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an alternative, be coated.

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