Oxygen special globe valve

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Oxygen special globe valve

Model: YJ41W
Nominal diameter: DN15 ~ 400mm
Nominal pressure: PN1.6 ~ 4.0MPa
Temperature: room temperature
Medium: Oxygen
Design and manufacture: GB12235-89
Length of the structure: GB12221-89
Flange size: B / G79-94
Examination And test: GB13927
shared:

Oxygen special globe valve is a forced-sealed valve, so the valve is closed, you must apply pressure to the valve to force the sealing surface does not leak. When the medium from the bottom of the valve into the valve six, the operating force needed to overcome the resistance is the stem and packing friction and the pressure generated by the media thrust, off the valve force than the valve opening force, so the valve The diameter of the rod should be large, otherwise it will happen to the top of the valve stem failure. In recent years, from the self-sealing valve appears, the flange of the media cut off the valve to change from the top of the valve into the valve chamber, then under medium pressure, the valve closing force is small, and open the valve force, valve The diameter of the rod can be reduced accordingly. At the same time, in the medium, this form of valve is also more stringent.
 

1, the oxygen valve is open, the valve opening height, 25% to 30% of the nominal diameter, the flow has reached its maximum, indicating that the valve has reached the fully open position. Therefore, the full-stop position of the valve, valve stroke should be determined.

2, small work schedule, opening and closing time is short. 
 3, good sealing, friction between the sealing surface is small, longer life expectancy.
 

Oxygen globe valve main performance and use of:

modelNominal pressureShell test pressure Ps (Mpa)Gas seal testApplicable temperature (℃)Suitable media
watergas
YJ41W-25P 
       YJ41W-40P
2.53.82.52.5Room temperatureoxygen


 Oxygen globe valve main dimensions:

YJ41W-40P, YJ41W-40RWeight 
       (kg)
DN (mm)Size (mm)
LDD1D2D6bffzz-фdDziHD0
151309565454016244-ф1482102021005
2015010575555116244-ф1495132251006.5
2516011585655816244-ф1498152361257
32190135100786618244-ф181202831218013.5
40200145110857618344-ф181352032816016
502301601251008820344-ф181602545032032
6529018014512011022348-ф181803053036045
8031019516013512122348-ф181953256040060
1003502301901601502434.58-ф232304061845080
1254002702201881762834.58-ф2527542675450105
1504803002502182043034.58-ф2533050743560134
2006003753202822603834.512-ф3040555850640266