8B8-1SNS-4AX57430C

MODEL "123" BACK PRESSURE RELIEF REGULATOR,GRAPHITE/NBR GASKETS 1-1/2" SIZE; CAST IRON BODY & SPRING CHAMBER; S2N TRIM: METAL SEAT,316SST CYLINDER,416SST PLUG,NEOPRENE (BC) DIAPHRAGM; OPT-33: THREE NPT BODY CONNECTIONS; 45-105 PSIG RANGE SPRING; PER SPQ NUMBER 57430 WITH NO FAR EAST COMPONENTS FOR PRESSURE BEARING PARTS. ONLY USA MADE; OPT-25S: SCREEN FOR SPRING CHAMBER VENT;