1C4-3B57-1BX33226A

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; 10-25 PSIG SST RANGE SPRING; PER SPQ/MA DRAWING NUMBER 33226 CONSTRUCTED PER AIR PRODUCTS DRAWING IGD801458A;