Dual Plate Check Valve - C.i / D.i / Cast Steel, Flanged And Wafer Designs, 80-1200 Nb Sizes, Quick Door Closure With Torsional Springs

Dual Plate Check Valve (80-1200 NB) Choice of torsiona, springs (rigid and mild) dictate the speed of door closure and the minimum flow velocity at which doors open. Compact, low priced, calls for replacement of spring set from time to time. Both flanged and wafer designs as per API 594, PN 10/ PN 16 are available. Size 80 100 125 150 200 250 LOF 57 64 70 76 95 108 Size 300 350 400 450 500 600 LOF 143 184 191 203 213 222  Size 700 750 800 900 1000 1200 LOF 305 305 356 368 432 524   Component Material Body C.I / D.I / Cast Steel Door D.I / Cast Steel /St. St. Door Face Elastomer / Bronze /St. St/ Retainer Bar Stainless Steel Spring Stainless Steel Seat - Rubber to metal, metal to metal