Starting at $546.36
  • Usually ships in 3-4 weeks



  • Recommended when clamped joints are not acceptable
  • Prevents inadvertent disassembly
  • Assists in controlling plant emissions
  • All-stainless steel construction is standard
  • Process Connections
    • Threaded female NPT
    • Raised face flange
  • 1/4 inch to 3 inch process connection sizes
  • Variety of diaphragm and housing materials
In a rush? Ashcroft Gold Service guarantees shipment within 3 to 5 days. Call us now at 1-800-884-4967 for additional information.


Ashcroft Type 400 / 500 Series diaphragm seals assist in controlling plant emissions by helping prevent potential leakage of hazardous chemicals. The unit has an all stainless steel construction as standard with other materials available as options. The Type 400 /500 series are recommended for use when clamped joints are not acceptable.