DLOK Environmental Quality Engineering
Check Valves

Check Valves

  • DLOK Check Valves are available in SS 316, Monel, Duplex, and Hastelloy C for reliable performance in demanding applications.
  • Available in sizes from 1/8" to 1".
  • Maximum working pressure up to 10,000 psig (690 bar).
  • Offered with Male & Female NPT, BSPP, BSPT, and DLOK Tube Fitting end connections.
  • Available with cracking pressure options of 1/3, 1, 5, 10, 25, 50, 75, and 100 psig, with additional options available on request.
  • Full heat code traceability for material identification and quality assurance.
  • NACE-compliant versions are available on request for sour service applications.
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