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Powerful function of high-pressure hard seal ball valve
The surface of hard-sealed high-pressure ball valve adopts advanced spraying technology, and the maximum hardness can reach HRC78 through treatment of various working conditions. The maximum hardness of the sealing surface of the valve seat can reach HRC72. The ball and valve seat shall be lapped in pairs, and all sealing areas of the whole sealing surface of the hard sealed high-pressure ball valve shall be precisely lapped. Hard sealed high pressure ball valve is suitable for high temperature and high pressure water, steam, oil, coal, fiber, viscous and corrosive media, as well as media with particles.
The hard seal high pressure ball valve seals the seat ring and the spherical surface through the uniform spring load acting on the seat ring. At the same time, due to the spring load, the auxiliary seal expands to achieve the sealing between the valve body and the valve seat. The spring load is sufficient to provide reliable sealing between the valve seat and the ball, especially under low pressure conditions. According to the needs of users, a sealing grease injection system can be designed between the sealing surface of the valve seat and the ball.
Hard seal high pressure ball valve is a relatively new type of ball valve. It has some unique advantages of its own structure, such as friction-free switch, non-wear seal and small opening and closing torque. This will reduce the size of the equipped actuator. The hard sealed high pressure ball valve is equipped with a multi-turn electric actuator, which can realize the adjustment and tight cut-off of the medium. Hard seal high pressure ball valve is widely used in petroleum, chemical, urban water supply and drainage and other conditions requiring strict shutoff. The hard seal high-pressure ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Hard seal high pressure ball valve is a new type of valve widely used in recent years. Hard seal high pressure ball valve has the following advantages:
1. The fluid resistance is small, and the resistance coefficient of hard sealed high-pressure ball valve is equal to that of the pipe section of the same length.
2. Hard sealed high-pressure ball valve has simple structure, small volume and light weight.
3. Tight and reliable. At present, the sealing surface material of hard sealed high-pressure ball valve is widely used in plastic, with good sealing performance, and has also been widely used in vacuum systems.
4. The hard seal high pressure ball valve is easy to operate and can be opened and closed quickly. It can be rotated by 90 ° from full opening to full closing, which is convenient for remote control.
5. The hard sealed high pressure ball valve is easy to maintain, the ball valve structure is simple, the sealing ring is generally movable, and the hard sealed high pressure ball valve is easy to remove and replace.
6. When the valve is fully open or closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes through, it will not cause the erosion of the valve sealing surface.
7. The hard seal high pressure ball valve has a wide range of applications, ranging from small diameter to a few millimeters, to a few meters, from high vacuum to high pressure. When the hard seal high pressure ball valve rotates 90 degrees, the inlet and outlet should all be spherical, thus cutting off the flow.
