Exhaust check valve

Technical Parameter

Nominal diameter: DN50~1000mm

Nominal pressure: PN1.0~10.0MPa

Working temperature: ≤550℃

Main material: WCB, WC6, WC9

Applicable medium: water, steam, air, oil


Product Detail

Product Description

The steam extraction check valve is mainly used in the steam extraction system of the steam turbine of the thermal power plant to prevent the backflow of the medium or water, and to protect the important facilities such as the steam turbine water pump. , the valve closes instantly, and the closing time is less than 0.5 seconds.


Performance Specifications
1. Nominal pressure:

PN1.0~2.54.0~6.410.0
DN50~100050~40080~350

2. Applicable medium: water, steam, air, oil.


3. Working temperature:

Main materialWCBWC6WC9
Operating temperature≤425℃≤540℃≤550℃


Main external connection dimensions

H664H-10
DNLDD1D2HH1H2H3L1W(kg)
450740428476630990425510755486620
500790468520658990470545852554759
700104068274784599056062512408201258
800129578084299512576506451348.39281788
100016001110115012301700850745184010404800


H664H-16
DNLDD1D2HH1H2W(kg)
200526195239410815325390236
300610300354494845350445376
4008383804366001142450490674


H664H-25
DNLDD1D2HH1H2W(kg)
250680250302475904380440385
500102048058482012405805601537