LRZ-45N7-6N000000A

Model "31-B" Low Back Press Relief Gas Reg. Graphite/Nbr Gasket; 2" Body Size,No.6 (0.375") Orifice; Wcb Body,SST Lower Case,Wcb Spring Chamber,Arrangement/Position 4,;Standard Construction Includes Internal Sensing Unless Option - "Es";Is Specified; S50n Trim: 316lSST Internals,Buna-N (Nbr) Seat & Diaphragm With;Reinforcing Core; Opt-30: 150 Lb Raised Face Flanges; 4.5-5.5" Wc Range Spring