CONBRACO 10-407 SERIES 3/4" MALE THREAD INLET BY 3/4" FEMALE OUTLETSET AT 30 PSI - 535,000 BTU capacity. Brass/bronze safety relief valves protect ASME Section IV hot water heating boilers and hydronic heating systems. High capacity design features...

Relief pressure preset of 30 psi for releasing excess pressure 3/4" female NPT threaded inlet for connecting to a male NPT connection ASTM B584 bronze body and nozzle and stainless steel spring for corrosion resistance 250 degrees F maximum...