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Ashcroft 401 All-Welded Diaphragm Seal

Ashcroft 401 All-Welded Diaphragm Seal

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SKU: 401 Categories: ,

Product Overview: Ashcroft 401 All-Welded Diaphragm Seal

The Ashcroft® 400 and 401 All-Welded Diaphragm Seals or isolation devices protect pressure measuring instruments. Used to ensure process compatibility, they are also applied when process media exhibits high temperature, pulsation or the potential to clog an instrument connection. An ideal selection for applications needing added product integrity.


Key Features:



  • Select diaphragm and lower housing materials
  • All-welded construction
  • Carbon steel rings (standard); 300 stainless steel rings (optional)
  • Pressure rated up to 4,400 psi; optional high-pressure rings to
    9,000 psi (type 401: 5,000 psi ) 

  • Flush port (type 401) provides easy cleaning / flushing due to process 
    media prone to clogging

Specifications:



  • Style:
    Type 401: threaded with flushing port

  • Process size:
    Type 401: 1/4′ to 1′ NPT female

  • Rated up to 4,400 psi

The 400 and 401 Diaphragm Seals are ideal where fugitive emission and hazardous process protection are 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