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Model 990.23 Diaphragm Seal

Brand: WIKA Alexander Wiegand SE & Co. KG
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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.
Features
  • Rotatable retainer flange
  • Versions with 90° pipe elbow and vibration damper
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.
Features
  • Rotatable retainer flange
  • Versions with 90° pipe elbow and vibration damper
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Specifications

Brand

Pressure Range

  • 0 to 40 bar (0 to 580 psi)

Extension Length

  • 6.5 mm (0.256”)
  • 17 mm (0.669”) optional

Wetted Material

  • Stainless Steel 1.4404 / 1.4435 (316L), Standard
  • Ceramic Coating wikaramic®
  • PFA (Perfluoroalkoxy) Coating, FDA
  • PFA (Perfluoroalkoxy) Coating, antistatic
  • ECTFE Coating
  • Stainless Steel 1.4541, AISI 321
  • Stainless Steel 1.4571 (316Ti)
  • Duplex 2205 (1.4462)
  • Monel 400 (2.4360)

Certifications & Approvals

  • EAC
  • CRN
  • MTSCHS
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Applications

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