Materials for the main parts of gate valve in hydropower station:
Component name Material trademark
Valve body A216WCB A217WC1 A217WC6 A217WC9
Valve disc A216WCB A217WC1 A217WC6 A217WC9
Valve seat 25 15CrMoA 12Cr1MoVA 12Cr1MoVA
Valve rod 1Cr17Ni2 1Cr17Ni2 SUH600 SUH600
20Cr1Mo1V 1A 20Cr1MoVA
Valve cover 25 15CrMoA 12Cr1MoVA 12Cr1MoVA
WCB WC1 WC6 WC9
Stuffing Enhanced flexible graphite
Support WCB WCB WCB WCB
WC1 WC6 WC9
Sealing ring S mild steel (strengthen flexible graphite) S mild steel F mild steel
Empty screw nut 45(ZCuZn 25A 16Fe3Mn3)
Applicable temperature = 425 celsius degree = 450 celsius degree = 540 celsius degree = 570 celsius degree