Ashcroft 104 In-Line Threaded Diaphragm Seals


The Ashcroft® 104 in-line diaphragm seal or isolation device protects pressure measuring instruments. Mounted in-line to the process piping, it is used on applications where continuous flow prevents process clogging or accumulation, while preventing process fluid loss in the event the measuring instrument is removed or fails. An ideal choice for satisfying challenging installation requirements.

Key Features:

  • Wide selection of diaphragm and lower housing materials
  • Diaphragm threaded to top housing

Specifications:

  • Process size: 1/4" and 1/2" NPT
  • Rated up to 2500 psi

The 104 in-line diaphragm seal is 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

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