... gate Valve Flash Board knife gate Valvenominal pressure; 0.6 mpa, 1.0mpa, 1. ... , ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF3, CF3Mseal type: stainless steel hard seal, Teflon sofe sealleakage: stainless steel hard seal leakage grade D ... , teflon soft seal no leakage,driving devices: bevel gear, electric, handwheel, hydraulic, Flash Board knife gate Valve (API ...