The characteristic of product
Technology introduction
Balance plug, most reduced the moment of actuator, saving energy;
Flow characteristic's curve is smoothing, have type for linear and correction equal percentage;
Little resistance,and high flow;
Multistage throttle, contructure for cavitation erosion and flash vaporization resistant;
Strict close performance,zero inner leakage;
Throughway type, angle body,welding or flanged connections;
Lower easy-to-damage parts,convenient maintainance;
Wedged type trim,accord with constructure of international newest control valve. |
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Product specify
By one or more stage expansion method to reduce the steam pressure to the expectation value, simultaneously, in order to realize reduces the temperature value goal which vapor temperature arrives needs, control entrance cooling water. This equipment widely applies to the industry and each kind of type power plant as well as the large-scale power plant steam turbine and the high-pressured substation. The GYL series control valve mainly aims at the condensing water to be systematic, operating mode request, when the medium has the certain pressure variation that will cause flash vaporization phenomenon, thus has the serious destruction to the valve port, affects the overall system the normal operation. We request and have the destruction cause in view of the different operating mode, according to the principle to reduce expense and pressure, using the computer simulation design,improve the performance which the valve anti-steam eclipses, bears washes our basis from the structure. Covers reduces expenses for the first level to fall pressure, when promotes the valve stem, the lower valve stem extremity reduces expenses for the second level to fall pressure (according to need to be possible to design to three levels reduces expenses to fall pressure). The valve port establishes between in first level and the second level reducing expense to fall pressure, moreover is far away the throttle. This kind of structure establishment first through the multistage throttle, fell the pressure to suppress the cavitation phenomenon occurrencing; Next, if has slightly changes (cavitation) to occur, also the military and political leader variation area directed in valve plug covering, also was far away the valve port, has avoided the cavitation to the valve port destruction. The valve body uses the ultra width the streamline design, has in a big way may move compared to, in the travelling schedule very hour, passes flows the area slightly, the resistance is big (but has anti- cavitation performance); After the travelling schedule increases, the circulation area increases, the resistance is small, can satisfy the great current capacity the request. At the same time, the valve core uses the balance -like configuration, the driving influence very slightly, opens, closes rapidly is reliable. |
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