1C4-X36K-33751AA

MODEL "BQ" BACK PRESS RELIEF REGULATOR, TFE GASKETS 1/2" INLETS,1/2" OUTLET; SPECIAL BODY & SPRING CHAMBER MATERIAL; S36 TRIM: 316SST WITH TFE SEAT,302SST DIAPHRAGM; NPT SCREWED; 65-150 PSIG SST RANGE SPRING; PER SPQ/MA DRAWING NUMBER 33751 SST CRYOGENIC CONSTRUCTION; CLEANED PER CASHCO SPEC #S-1542; RATING 300 PSIG @-425 TO+150 DEG F; CONSTRUCTED PER GARDNER CRYOGENICS DRAWING #17387A, NO REVISION