DF-EN Flush Flanged Diaphragm Seal

The Ashcroft® DF flush flanged diaphragm seal uses a diaphragm welded directly to the assembly flange, eliminating much of the cost associated with bulky lower housings made from exotic and expensive wetted materials. The flush-mounted diaphragm prevents clogging and is available in a full range of metallic and coated materials.

Key Features:
  • Flush design minimizes the use of expensive specialty wetted materials
  • Flush-mounted diaphragm prevents clogging of process media
  • Diaphragm welded to flange
  • Filling port in the instrument connection
  • Suitable for pressure gauges, switches and transmitters
Specifications:
  • Flange size: DN25 to DN125
  • Flange rating: PN10 to PN100 - class flanges
  • Flange design according to EN 1092-1

The type DF diaphragm seals are ideal where process protection is essential:

Process Market:
  • Oil and Gas
  • Refineries
  • Chemical and Petrochemical
  • Water and Wastewater
Process Applications:
  • Oil and Gas Fracking
  • NACE Compliant Processes (Sour Gas Separation)
  • Biogas and Biodiesel
  • ATEX
  • CE
  • GOST
  • NACE
 

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The Ashcroft® flushing ring is providing flushing connection for flush flanged or sandwich type diaphragm seals.

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Tools

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  • Materials Selector

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