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Extraction check valve

Products > Power station valve > Extraction check valve

Extraction check valve

Model: H664Y
Nominal diameter: DN50 ~ 1000mm
Nominal pressure: PN1.0 ~ 10.0MPa
Operating temperature: ≤550 ℃
Main material: WCB, WC6, WC9
Design Standard: API 6D , BS 1868, GB / T 12235, GB / T 12236, JB / T 8937
Structure length: ASME B16.10, API 6D, GB / T 12221
Connection standards: ASME B16.5, ASME B16.47, ASME B16.25 , GB / T 9113, JB / T 79, HG / T 20592
Pressure test: API 598, API 6D, GB / T 13927, GB / T 26480
Pressure and temperature levels: ASME B16.34, GB / T 12224
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First, H664Y extraction check valve purposes
The extraction check valve is mainly used for steam turbine power plant steam extraction system to prevent the media or water back to the turbine pumps and other important facilities play a protective role, the performance requirements for the pipeline medium Back flow, power outages, accidents and other abnormal state, the valve instantly shut down, close time is less than 0.5 seconds.


 Second, H664Y pumping check valve performance specifications
 1, the nominal pressure:

Nominal pressure1.0 ~ 2.54.0 ~ 6.410.0
Nominal diameter50 ~ 100050 ~ 40080 ~ 350

2, the medium: water, steam, air, oil 
3, the working temperature: 

The main materialWCBWC6WC9
Operating temperature≤425 ℃≤540 ℃≤550 ℃

 

Third, H664Y suction check valve main dimensions

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

 

H664H-16
DNLDD1D2HH1H2W (kg)
200526195239410815325390236
300610300354494845350445376
4008383804366001142450490674

 

H664H-25
DNLDD1D2HH1H2W (kg)
250680250302475904380440385
500102048058482012405805601537