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DF Flush Flanged Diaphragm Seal

Brand: Ashcroft Inc
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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.
Features
  • Flush mounted diaphragm seal prevents clogging 
  • Engineered to minimize the use of expensive wetted materials 
  • Continuous-duty construction 
  • Available with a wide range of wetted materials 
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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.
Features
  • Flush mounted diaphragm seal prevents clogging 
  • Engineered to minimize the use of expensive wetted materials 
  • Continuous-duty construction 
  • Available with a wide range of wetted materials 
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Specifications

Brand

Flange Material

  • 316L Stainless Steel

Special Cleaning & Packaging

  • Cleaned for Oxygen Service

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ASME
  • 1” (DN 25) - 1500# ASME
  • 1” (DN 25) - 2500# ASME
  • 1” (DN 25) - 300# ASME
  • 1” (DN 25) - 600# ASME
  • 1” (DN 25) - 900# ASME

Approvals & Certifications

  • CRN
  • CE II 2 GD C II TX
  • ATEX Ex 0044
  • Hydrostatic/Pneumatic Test
  • Mass Spec Leak Test
  • Material Test Certificate EN 10204 3.1
  • PMI - Positive Material Identification

Flange Type

  • Raised Face (RF)
  • Ring Joint Facing

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME
  • 4” (DN 100) - 1500# ASME
  • 4” (DN 100) - 2500# ASME
  • 4” (DN 100) - 300# ASME
  • 4” (DN 100) - 600# ASME
  • 4” (DN 100) - 900# ASME

Enclosure, Body Material

  • 316L Stainless Steel

NACE & NIST

  • NACE

Diaphragm Material

  • 316L Stainless Steel
  • Gold-Plated 316L Stainless Steel
  • Hastelloy C-276
  • Monel 400
  • Tantalum
  • Teflon-Coated 316L

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ASME
  • 2” (DN 50) - 1500# ASME
  • 2” (DN 50) - 2500# ASME
  • 2” (DN 50) - 300# ASME
  • 2” (DN 50) - 600# ASME
  • 2” (DN 50) - 900# ASME

Fill Material

  • Halocarbon
  • Silicone 10, 50 cSt
  • Syltherm

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ASME
  • 3” (DN 80) - 1500# ASME
  • 3” (DN 80) - 2500# ASME
  • 3” (DN 80) - 300# ASME
  • 3” (DN 80) - 600# ASME
  • 3” (DN 80) - 900# ASME

Mounting

  • Flush Mounted

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ASME
  • 1-1/2” (DN 40) - 1500# ASME
  • 1-1/2” (DN 40) - 2500# ASME
  • 1-1/2” (DN 40) - 300# ASME
  • 1-1/2” (DN 40) - 600# ASME
  • 1-1/2” (DN 40) - 900# ASME

NPT Connection

  • Instrument Connection: 1/2” NPT Female
  • Instrument Connection: 1/4” NPT Female

Seal Type

  • Flush
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Applications

  • Biogas & Biodiesel
  • Chemical & Petrochemical
  • NACE Compliant Processes
  • Oil & Gas Applications
  • Oil & Gas Fracking
  • Refineries
  • Water & Wastewater
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