The valves are not deemed Lead Free. Brass Safety Relief Valve CONTROL DEVICES SF50 1/2 NPT SOFT SEAT SAFETY VALVE Ksv Soft Seat Valves This Safety Valve Is Preset at 70 PSI And Has a Flow Rate (SCFM) Of 67., Conrader safety valves are designed to protect unfired pressure vessels and systems from over pressure in compressed air and gas applications. This Safety Valve Is Made In The USA See attached NPT Thread chart. This Safety Valve Has An Operating Temperature Range of -65 Degrees Fahrenheit To 400 Degrees Fahrenheit The sealing material in the internals of the valve will depend on the compatibility of media flowing through the valve. This Brass Safety Valve Is Preset At 70 PSI And Has a Flow Rate (SCFM) Of 67 Set Pressure Tolerance: +2 psig up to and including 70 psig, +3% of set pressure greater than 70 psig. Pressure Protection Valve - 1/4" NPT - 70 PSI This Brass Safety Valve Is Preset At 80 PSI And Has a Flow Rate (SCFM) Of 42 This Safety Valve Is Made In The USA This Safety Valve Has An Operating Temperature Range of -65 Degrees Fahrenheit To 400 Degrees Fahrenheit Please Note 1/4 NPT Measures 0.540 Outside thread diameter in inches. See attached NPT Thread chart. Other Thread Sizes And PSI Options Are Available. Please Reach Out With... Other Thread Sizes And PSI Options Are Available. New High Pressure Soft Seat Relief Valves Ideal for Gas Applications Materials of Construction: Seat, Cap, Piston: ASTM B16 Brass Spring: 17-7 Stainless Steel Seal: Silicone or Viton. Please Reach Out With Questions.
