MODEL "1000HP" PRESSURE REDUCING REGULATOR,GRAPHITE/NBR GASKETS 1-1/2" SIZE,GASEOUS JET; WCC BODY,DUCTILE IRON SPRING CHAMBER; S2N TRIM: METAL SEAT,316SST CYLINDER,416SST PLUG,NEOPRENE (BC) DIAPHRAGM; OPT-30: 150 LB RAISED FACE FLANGES; 10-40 PSIG RANGE SPRING; OPT-17: PISTON SPRING;