MB4-AS37-X2X55154C

MODEL "4381" PRESSURE REDUCING REGULATOR, TFE GASKET/O-RING 1/2" SIZE; 316L SST BODY & CF3M SST SPRING CHAMBER; S3 TRIM: 316L SST WITH TFE SEAT,NEOPRENE (BC)DIAPHRAGM; SPECIAL END CONNECTION; 20-80 PSIG RANGE SPRING; PER SPQ NUMBER 55154 DYE PENETRATE TESTING ON WELDS; HYDRO TEST ON BODY SUB ASSEMBLY; SST BODY WITH CS NIPPLES AND FLANGES; 3/4" X 1/2" FLAT FACE RED. FLANGES.