Overview: The Class Z961Y high temperature and high pressure power station gate valve is apply to power plant gate valve is suitable for the Class1500-29 ~ ~ 3500 lb, working temperature 570 ℃ under various working conditions such as petroleum, chemical industry, power plant piping cut off or connect medium. Applicable medium: water, oil, heat conduction oil, steam, etc. Disc and seat sealing surface using department too vertical - stellite cobalt-based hard alloy surfacing and become, wear-resisting, higmain technical parameters:h temperature resistance, good corrosion resistance, abrasion resistance. The major part materials: Body :WCB, WC6,WC9 Disc :WCB, WC6,WC9 Bonnet:25,12Cr1Mo1VA Stem: 1Cr17Ni2 ,20Cr1Mo1VA Seat: 25, 12Cr1Mo1VA Sealing ring : S mild steel (reinforced flexible graphite), S mild steel, F mild steel