High pressure flat gate valve

1. As a two-position valve, the flat gate valve is mainly used to control the opening and closing of the pipeline, and the gate moves up and down to complete the opening and closing of the valve; 

2. There are two types of casting and forging structures to choose from;

3. In the case of high differential pressure, the internal guide ring will not generate eddy current boost, and effectively protect the sealing surface from direct erosion and cavitation of the medium, effectively prolonging the service life;

4. The automatic sealing is realized by the pressure difference of the medium, and there is no need to apply additional axial force of the valve stem, so the closing torque is small, the operation is light and flexible, and the electric installation can effectively reduce the electric weight of the valve and the power of the motor. The rod size and packing size are greatly reduced, especially for the occasion of quick opening and closing;

5. The positioning requirements of the closed position are low, and it is easy to realize the overall convenience and reliability of the sealed open and closed position;

6. Unaffected by the high and low temperature of the medium, the wedge gate will cause the valve to be stuck;

7. Built-in special spring, adapt to the requirements of different media, the working pressure range is not limited;

8. The sealing surface of the valve seat and gate plate is automatically surfacing with cobalt-based cemented carbide by plasma spray welding machine. The hardness of the sealing surface is uniform, HRC40 45, which can meet the high temperature and high pressure working conditions below 650 °C, wear-resistant, resistant to Corrosion, scratch resistance, long service life.