D58-5NF7-42X57558E

MODEL "DA5" BACK PRESSURE REGULATOR (SERIES V)-BPV BODY SIZE 1-1/2",STANDARD DIAPHRAGM CONSTRUCTION; CARBON STEEL BODY & CARBON STEEL SPRING CHAMBER; NACE TRIM, FKM SEAT, FKM DIAPHRAGM FKM STATIC SEAL, ELG-TFE U-CUP DYNAMIC SEAL; 150 LB RAISED FACE FLANGES; 40 - 175 PSID RANGE SPRING; PER SPQ NUMBER 57558 WITH APPROVED G7 PRESSURE BOUNDARY COMPONENTS; SPECIAL A193-B7/A194-2H HOT DIPPED GALVANIZED BOLTING; INTERNAL SENSING, REVERSE - FLOW TO OPEN DIRECTION; OPT-25S: SCREEN FOR SPRING CHAMBER VENT; OPT-40: NACE CONSTRUCTION PER SPEC# MR0175;