D86-5XX7-4XX56717E

MODEL "DA8" DIFFERENTIAL BACK PRESSURE REGULATOR (SERIES VIII)-PDBPV BODY SIZE 1",STANDARD DIAPHRAGM CONSTRUCTION; CARBON STEEL BODY & CARBON STEEL SPRING CHAMBER,1/8" PETCOCK VENT; SPECIAL TRIM MATERIALS; 150 LB RAISED FACE FLANGES; SPECIAL SPRING RANGE; PER SPQ NUMBER 56717 WITH SPECIAL TRIM: SEAT - VTFE, DIAPHRAGM - 316 SST, STATIC SEAL - VTFE & DYNAMIC SEAL - PTFE/ELGILOY U-CUP; 10-35 SPRING RANGE; EXTERNAL SENSING; OPT. -65B, FLOW THRU SPRING CHAMBER 1/2" NPT; OPT. -40 NACE CONSTRUCTION PER MR0175;