新建项目-7

Hydraulic-actuation inlet three-way valves

 Material for main parts

 

No.

Name

Material

1

Body

WCB

2

Seat

A105

3

Disc

WCB 

4

Stem

  1Cr17Ni2

5

Seat

WCB

6

Bonnet

WCB

7

Packing

Enhanced flexible graphite

8

Hydraulic actuation

Equipped

Application: Installed in the inlet water supply of high-pressure heater unit of 300MW, 600MW. When an accident occurs in the high-pressure heater and the water level exceeds the allowable water level, the feed water is urgently switched to the bypass, and the high-pressure heater is safely taking offline, which plays the role of protecting the high-pressure heater.