All welded Hydrogen Mini-Diaphragm Seals 310-315

  • Hydrogen mini-diaphragm seals have a compact and lightweight design
  • Protects instrumentation in tight spaces
  • Eliminates potential leak path with all-welded construction
  • Wide selection of diaphragm and lower housing materials
  • Pressure rated up to 2,500 psi at 100°F
  • No gaskets or bolts

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All welded hydrogen mini-diaphragm seals 310-315

  • The Ashcroft 310 and 315 mini-diaphragm seals protect pressure measuring instruments.
  • It is used when process compatibility is required.
  • They are also applied when process media exhibit pulsation and the potential for plugging or freeze-up.
  • It is an ideal choice for limited space installations.

Key features

  • Compact and lightweight design.
  • Protects instrumentation in tight spaces.
  • All-welded construction.
  • Eliminates potential leak path with all-welded construction.
  • Wide selection 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.
  • No gaskets or bolts.
  • Available with 1⁄8 NPT flushing connection.
  • Designed for use with transducers and 3 1/2˝ or smaller gauges.
  • Low fill volume reduces temperature effects on instrument accuracy.

Specifications

  • Connection style:
    • 310: All-welded
    • 315: All-welded with flushing connection
  • 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 Connection
    • 1/8 or 1/4 NPT Female

Contact us

  • Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Interested? Please contact the vendor by filling in the contact request form.
Ashcroft

At Ashcroft, we know safety and compliance are critical for hydrogen applications. That’s why we deliver proven pressure and temperature instruments—backed by over 170 years of expertise—that keep your systems running reliably and your people protected. From sensors and gauges to switches, diaphragm seals and temperature probes, our hydrogen-ready solutions help you avoid downtime, meet regulatory demands, and operate with confidence. With Ashcroft, you have a trusted partner who listens, supports, and delivers when it matters most.

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