Flat Gate Valve for Power Station

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1. Power station gate valve, also known as power station special valve, is mainly used in the pipeline of various systems of thermal power stations to cut off or connect the pipeline medium. Applicable media: water, steam and other non-corrosive media. Compared with other valve products, power station valve is characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the sealing. Due to the special performance and technical characteristics and working conditions, the product has also formed the characteristics that can not be replaced by other products.

2. Pressure self-tightening seal is adopted, and both ends of the valve body branch pipe are welded.

3. The valve seat and sealing surface are made of cobalt-based cemented carbide plasma spray welding, with good wear resistance and abrasion resistance.

4. The valve stem is treated with anti-corrosive nitriding and has good corrosion resistance and abrasion resistance.

• Our service tenet is customer first, service first. We will provide more accurate and efficient manufacturing and service according to customer requirements.
• We have a professional QC team to ensure that the products in Flat gate valve for power station meet your needs and do better.
• Check raw materials before production at Flat gate valve for power station.
• Spot checks are carried out during the processing of Flat gate valve for power station.
• 100% inspection of Flat gate valve for power station before shipment.
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• We have complete production technology and management.
• As a manufacturer our price is also good.

To be packed in suitable wooden cases as per client's

Q: Does the force applied to the handwheel need to be large?

A: No, the force applied to the handwheel will be ≤360N.

Q: What are the characteristics of gate valves in power stations?

A:

1. Ram is divided into wedge-type elastic single ram or wedge-type double ram structure.

2. Wedge type elastic single gate and wedge type double gate structure can avoid the valve body deformation caused by temperature change, resulting in the gate stuck; And due to the elastic compensation of the elastic groove and the free swing of the double gate, it can also compensate the sealing leakage caused by the deformation of the valve seat body, and the sealing is reliable.

3. The sealing surface of gate and seat is surfacing with cobalt-based cemented carbide, which is wear-resistant, high-temperature resistant, corrosion-resistant, abrasion resistant and has long service life.

Q: Why should the valve specify the upper sealing device?

A: When the valve is fully open, the sealing device that prevents the medium from leaking to the packing box is called the upper sealing device. When the gate valve, stop valve, throttle valve is closed, because the medium flow direction of the stop valve and throttle valve is flowing upward from below the valve disc, there is no pressure in the body cavity, and the pressure in the body cavity is lower than the working pressure when the gate valve is closed, so the pressure of the medium on the packing is very small. When opened, the packing should bear the working pressure, if there is an upper sealing structure, it can prevent the working medium pressure from acting on the sealing packing, extend the life of the sealing packing, so that the valve does not have external leakage. Another function of it is that when there is leakage in the sealing packing, the valve can be fully opened to seal the upper sealing place, so that the packing cover or the packing press sleeve can be loosened, the filler can be increased, and the filling cover can be pressed tightly, so as to ensure that the valve packing place is sealed without leakage. Therefore, the gate valve, the globe valve and the throttle valve should be provided with an upper sealing device.

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