MODEL "B2", BACK PRESSURE REGULATOR 1/2" SIZE, CV=0.30; 316L SST BODY, 316L SST SPRING CHAMBER; 302 SST DIAPHRAGM, TFE SEAT, 316L SST SEAT RETAINER, 316L SST POPPET, INCONEL X-750 POPPET SPRING, PORT CONFIGURATION "A", TRIM 16 MICRO-INCH Ra, ELECTRO POLISHED FINISH, SUITABLE FOR SANITARY SERVICE WHEN SST BODY SPECIFIED; TRI-CLAMP END CONNECTION; 2-25 PSIG RANGE SPRING; NO INLET GAUGE;