310-315 Mini-Diaphragm Seals from Ashcroft

310-315 Mini-Diaphragm Seals from Ashcroft
The Ashcroft® 310 and 315 mini-diaphragm seals protect pressure measuring instruments. Used to ensure process compatibility, they are also applied when process media exhibit pulsation and the potential for plugging or freeze-up. An ideal choice for limited space installations.


310-315 Mini-Diaphragm Seals Features:

  • Compact and lightweight design
  • All-welded construction
  • Choice of diaphragm and lower housing materials
  • Pressure rated up to 2,500 psi at 100°F
  • Volumetric displacement allows attachment to: 3 1/2″ gauges (60 to 1,000 psi)
  • transducers and switches



310-315 Mini-Diaphragm Seals Applications:

  • Process Market:
    • Oil and Gas
    • Chemical and Petrochemical
  • Industrial Markets:
    • Engineered Systems (Instrument Skids)
    • Hydrogen Systems



310-315 Mini-Diaphragm Seals Specifications:

Process Connection Size
  • 310: 1/8 to 1 NPT Male, 1/4 or 1/2 NPT Female
  • 315: 1/4 or 1/2 NPT Female
Instrument Connection1/8 or 1/4 NPT Female
Pressure Rating2,500 psi
Added Tolerance±0.5% typical
Connection Style
  • 310: All-welded
  • 315: All-welded with flushing connection


Download Ashcroft 310-315 Mini-Diaphragm Seals


Contact us at (855) 737-4714 to learn more, or fill out our online form.
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