Model "DAP" SALES A KIT FOR PRODUCT CODE: DP6-AXXS-X3X53146E; Pilot Oper. Pressure Reducing Regulator(Series IV-P)PORV; Body Size 1",Large Piston Construction; Cf3m SST Body & 316l SST Cover Dome; Special Trim, Seat Or Seal Material; Special End Connections; PER SPQ NUMBER 53146 - WITH 1500# RF FLANGES (OPT. -30); 17-4PH SST METALIC TRIM; CTFE SEAT; FLUOROCARBON ELASTOMER (FKM) STATIC SEALS (RESISTANT TO EXPLOSIVE DECOMPRESSION), TFE U-CUP W/SST ENERGIZER DYNAMIC SEAL