LB4-8S07-B5000Y00B

Model "2171" Back Pressure Relief Regulator, Tfe Gasket/O-Ring; 1/2" Size, Angle Design (Side Inlet(S) - Bottom Outlet); 316l SST Body, Bronze Spring Chamber; S0 Trim: 316l SST Metal Seat,Tfe Coated 302SST Diaphragm; Opt-30: 300 Lb Stainless Steel Raised Face Flanges; 190-300 PSIG Range Spring (Includes Opt-80: High Inlet Pressure;Construction); Opt-86: Inlet Pressure Gauge (Includes Opt-85: Inlet Body Gauge Tap)