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Birkett Safeflo Series Safety and Thermal Relief Valves
A range of thermal relief valves for smaller gas or liquid applications, relieving thermal expansion of process fluids in vessels and long pipes


  • Wide choice of materials includes non-ferrous for low temperature and oxygen service and exotic alloys for the chemical and process industries.
  • Simplified maintenance for flanged valves via a slip on inlet flange enabling easier realignment into existing pipework after servicing.
  • Interchangeable parts enable easy modification from gas to liquid or liquid to gas with the minimum number of parts.
  • D Series is certified for all media without modification.
  • Proven dependability ensures safe and reliable performance.
  • Optional cleaning for cryogenic and oxygen services available.
  • Balanced piston available on the 7D Series to counter the effects of variable back pressure.


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