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Model 990.26 Flanged Process Connection 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.
Features
  • Flange with internal, all welded diaphragm
  • Compact design
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.
Features
  • Flange with internal, all welded diaphragm
  • Compact design
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Specifications

Brand

Design

  • Flange with integral Diaphragm, which Requires hydraulic fluid to transmit Pressure to instrument.

Process Connection

  • 1/2” to 1” per ASME /ANSI B16.5 (Diaphragm recessed)

Instrument Connection

  • Capillary, 1/4” or 1/2” NPT Female

Suitable Pressure Ranges

  • 200 in H₂O to Class300, depending on flange and Diaphragm size and process conditions

Available Options

  • (Connections, materials, etc.) See Selection Guide (Over)
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Applications

  • Aggressive, highly viscous, crystallising or hot media
  • Process industry
  • Small flange process connections
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