3B4-5S17-81080000A

Model HP Rev A Pressure Reducing Regulator With Graphite/NBR Gaskets; 1/2" Line Size; Carbon Steel Body With Carbon Steel Spring Chamber; S1 Trim: 316 Stainless Steel Metal Seat, 302 Stainless Steel Diaphragm; OPT-30: Mates With ASME 600 Raised Face Flanges; 10-40 PSIG Range Spring; OPT-1+6: Differental Construction With Closing Cap