Model 990.27

Diaphragm seal with flange connection

With flush diaphragm

Selected documents
Sales contact

WIKA Instrumentation (M) Sdn. Bhd.

Tel.:
+603 5590 6666
Fax:
1700 81 4140
info@wika.my

Applications

  • For aggressive, highly viscous, crystallising or hot media
  • Process industry
  • Machine building and automation

Special Features

  • Flange with flush welded diaphragm
  • Common standards and nominal widths available
  • Wide variety of different materials and material combinations

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 990.27 diaphragm seal is available in a wide variety of dimensions following the usual standards for this market.

Assembly 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.

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 diaphragm can, as an alternative, be coated.

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