500-501 All-Welded Diaphragm Seals

The Ashcroft® 500 and 501 all-welded diaphragm seals protect pressure measuring instruments. Used to ensure process compatibility, they are also applied when process media exhibit high temperature, pulsation or the potential to clog an instrument connection. An ideal selection for applications requiring minimal potential leak paths.

Key Features:
  • Recommended where clamped joints are not acceptable
  • All-welded construction; prevents inadvertent disassembly
  • All-stainless steel construction; other materials available
  • Flush port (type 501) provides easy cleaning / flushing for process media prone to clogging

Process Market:
Oil and Gas
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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