Safety Relief Valves – Ball & Seat – 1-4 Series

1/4"-1" NPT - Max Set Pressure 12,500 PSI

CIRCOR Energy is pleased to offer the 1-4 Series as part of our safety relief valves portfolio. Below is a list of features that will enable you to better understand its capabilities.


  • Ideal for economical low flow overpressure protection
  • Incorporates Hydroseal's "self-seeking seat" design
  • ASME UV code stamped for air & gas (non-code liquid)
  • 1/4"-1" NPT inlet sizes, operating temperatures to 450 °F

If you would like additional information, please click on any literature link below or Contact Us directly so that we may provide you with detailed specifications.




*Product Summary Catalog
PDF Size: 1.2MB
Legacy Series Brochure
PDF Size: 1.9MB
Safety Relief Valves - IOM Series 1-4
PDF Size: 27KB