High

High Pressure Gate Valve

p>Z61y-250 and z61y-320 high-pressure power station gate valves produced by Hangda Valve Group Co., Ltd.: manual, butt welding connection, rising stem wedge-shaped rigid single gate, valve seat sealing surface material is cemented carbide, nominal pressure is PN250 ~ pn320, valve body material is carbon steel high temperature and high pressure power station gate valve.

Structural Features

High temperature gate valve is also called special valve for power station. It is mainly used in various systems of thermal power plant to cut off or connect pipeline medium.

Applicable medium: water, steam and other non corrosive media. Compared with other valve products, the features of power station valve are high temperature and high pressure, unique self sealing design, the higher the pressure, the more reliable the seal. Due to the special performance, technical characteristics and working conditions, the product has formed the characteristics that other products can not replace.

1. Open and close without friction. This function solves the problem that the sealing surface is affected by the friction between the sealing surfaces of traditional valves.

2. Top mounted structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the shutdown of the device and reduce the cost.

3. Single seat valve design. It eliminates the problem that the medium in the valve chamber affects the safety due to abnormal pressure rise.

4. Low torque design. The valve stem of special structure design can be opened and closed easily with a small handle valve.

5. Wedge seal structure. The valve is sealed by pressing the gate wedge onto the valve seat by the mechanical force provided by the valve stem, so that the sealing performance of the valve is not affected by the change of pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions.

6. Self cleaning structure of sealing surface. When the gate is tilted away from the valve seat, the fluid in the pipeline passes through the sealing surface of the gate evenly in 360 degrees, which not only eliminates the local scouring of high-speed fluid on the valve seat, but also washes away the accumulation on the sealing surface, so as to achieve the purpose of self-cleaning.