Model "SN" ASME safety valves are designed for high temperature applications where large flow capacities are needed.
All brass construction with stainless steel spring and stainless steel ball seating on brass seat. Inlet size: 1/2" NPT. Stamped with "UV" and "NB" symbols. Available set pressure range 50 PSI to 350 PSI. Set pressure tolerance +3% of set pressure. 350°F max. temperature.