Model 990.27 Diaphragm Seal with Flange Connection

Brand: WIKA Alexander Wiegand SE & Co. KG

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.

The model 990.27 diaphragm seal is available in a wide variety of dimensions following the usual standards for this market.
Features
  • Flange with a flush welded diaphragm.
  • Available for all common standards and nominal widths.
  • When special materials are selected, all wetted parts (diaphragm and sealing face) are made of the selected material.
  • Robust, all welded design.

Specifications

Wetted Material

  • 316 Stainless Steel
  • Monel 400
  • Hastelloy B-2, C-276
  • Inconel 600
  • Incoloy 825
  • Carpenter 20
  • Tantalum
  • Titanium, Grade 2
  • Nickel 200

Process Connection

  • 1.5”, 2”, 3”, 4”, 5” Pipe

Instrument Connection

  • 1/4” NPT Female
  • 1/2” NPT Female
  • Capillary Connection

Flange Material

  • 316 Stainless Steel
  • Titanium Grade 2

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

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