1C4-3B57-1XX54746A

MODEL "BQ" BACK PRESS RELIEF REGULATOR, TFE GASKETS 1/2" INLETS,1/2" OUTLET; BRONZE BODY & SPRING CHAMBER (OPT-5), CRYOGENIC CONSTRUCTION OPT-55: CLEANED FOR OXYGEN SERVICE PER SPEC #S-1134; B5 TRIM: BRASS WITH TFE SEAT,PHOS.BRONZE DIAPHRAGM; NPT SCREWED; SPECIAL RANGE SPRING; PER SPQ/MA DRAWING NUMBER 54746 DN15 UNLETS AND OUTLET; 2-8 PSIG (14-55 KPAG); SET AT 5 PSIG (35 KPAG); WITH 2 EXTRA LONG FLANGE BOLTS AND EXTRA NUTS; WITH BOTH ENGLISH AND METRIC TAGGING; INLET AND OUTLET RATING: 400 PSIG CWP TO -325F (2760 KPAG CWP TO -163C); CONSTRUCTED PER GARDNER CRYOGENIC DWG NO 25911A;