Materials for the main parts of check valve in hydropower station

Valve body

WCB

WC1

WC6

WC9

Valve cover

25

15CrMoA

12Cr1MoVA

12Cr1MoVA

Valve clack

WCB

WC1

WC6

WC9

Rocker

WCB

WC1

WC6

WC9

Valve seat

25

15Cr1MoA

12Cr1MoVA

12Cr1MoVA

Pin bearing

1Cr17Ni2

20Cr1Mo1V 1A

Stuffing

Enhanced Flexible Graphite