3500 SERIES PRESSURE VENT WITH PIPE-AWAY 2" INLET SIZE; 2" OUTLET SIZE, MATES WITH STANDARD ASME 150# FLANGED CONNECTIONS; RAISED FACE SST BODY & COVER, SST TRIM; FEP-TFE PALLET DIAPHRAGM; STANDARD WEIGHT MATERIAL STEEL OR COMBINATION OF STEEL AND SST;