31A4ECA43000000000

3100 Series Rev C Pressure/Vacuum Relief Vent End-Of-Line; Mates With ASME 150 Flange Connection; 4" Flange Size; Derakane 470 Body With Alloy C276 Studs, Integral Derakane 470 Seat Ring; FEP Pallet Diaphragm; 8.00 - MAX Oz/In2 Pressure Pallet Configuration; 0.75 - 7.99 Oz/In2 Vacuum Pallet Configuration; Epoxy Coated Carbon Steel Weight Material; Standard Vacuum Protection Screen; Standard Cleaning Method