... medium and is beneficial to sealing.3.The blade type gate disic helps medium cutoff anf residue discharge so ... operated withoyt blocking.4.The valve adopts wafer type connection.5.The wedge type limit stopper can provide sealing force, reliable sealing ... C.I,WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12MoTi, CF8, CF8M, CF3, 2Cr25Ni20Seal type: Stainlesss Steel Hard Seal, Teflon Soft SealLeakage: Stainlesss Steel Hard ...