Model PR low pressure relief valves are used in systems to maintain a desired pressure level. Model PR is a proportional relief valves and not “pop” type safety valves.
Unit is not preset at the factory, but easily field adjusted with knurled adjustment screw and locked with jam nut. All brass construction with stainless steel spring and ball as poppet.
- Maximum temperature 250° F
- Range – 0-20 psi
- Flow 2 cfm