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Instantly add the Model 990.31 Threaded Process Connection Diaphragm Seal and 50,000+ more product series to your store or catalog  
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Model 990.31 Threaded 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.

The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.
Features
  • All-plastic design.
  • Metal-free.
  • Process connection with thread for direct mounting, but also suitable for bonding (PVC-U) or welding (PP, PVDF).

Specifications

Brand

Pressure Rating

  • PN 10 (with water, 20° C)

Suitable Pressure Ranges

  • 0 to 1 bar to 0 to 10 bar not suitable for ± Ranges and Vacuum Ranges

Operating Pressure & Process Temperature

  • See also diagram Pressure-Temperature rating on page 2

Upper Housing (instrument Connection)

  • G ° Female
  • G 1/2 Female

Material

  • PP (Polypropylene), fibre-glass reinforced, Blue RAL 5022

Diaphragm with Sealing Ring

  • EPDM, with PTFE foil on the medium side

Lower Housing (process Connection)

  • d 25, G ° Female (Optional ° NPT)
  • d 32, G 1/2 Female (Optional 1/2” NPT)

Mounting Position

  • Any Position, preferably measuring instrument on top

  • For aggressive, corrosive or environmentally hazardous media
  • Plant construction for chemical products
  • Electroplating
  • Wastewater treatment

Documentation

Data Sheet

Operating Instructions

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