This series of relief valves have a 7/16" - 20 UNF-3 end with a vent to atmosphere. These relief valves have a straight thread for an o-ring seal. Our relief valves are designed for repeatable and accurate sealing. Cracking pressure is permanently locked in at the factory.
Available in brass and 316 stainless steel.
Choose the type of Oring you would like and the cracking pressure.