1. Open and close without friction. This function completely solves the problem that the traditional [wiki] valve [/ wiki] affects the seal due to the friction between the sealing surfaces
2. Top-mounted structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the device shutdown and reduce the cost.
3. Single valve seat design. The problem that the medium in the valve cavity is affected by the abnormal pressure increase and affects the safety of use is eliminated.
4. Low torque design. The valve stem with special structure design can be easily opened and closed with only a small handwheel valve.
5. Wedge seal structure. The valve relies on the mechanical force provided by the valve stem to press the ball wedge onto the valve seat to seal, so that the valve's tightness is not affected by the change in pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions.
6. Self-cleaning structure of the sealing surface. When the ball tilts away from the valve seat, the fluid in the pipeline evenly passes through the sealing surface of the ball at 360 °.
The working principle of the ball valve is to turn the valve stem to make the valve unblocked or blocked. The ball valve switch is lightweight, small in size, can be made into a large diameter, reliable sealing, simple structure, easy maintenance, the sealing surface and the spherical surface are often in a closed state, not easy to be eroded by the medium, and is widely used in various industries.
The ball valve and the plug valve are the same type of valve, only its closing part is a ball, and the ball rotates around the center line of the valve body to achieve opening and closing.
The ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium. Ball valve is a new type of valve widely used.
The three-piece ball valve only needs to be operated with a rotation of 90 degrees and a small turning torque to close tightly. The completely equal valve body cavity provides a direct flow channel with little resistance for the medium. It is generally believed that the ball valve is most suitable for direct opening and closing, and the development has designed the ball valve to make it throttle and control the flow. The main feature of the ball valve is its compact structure, easy to operate and maintain, suitable for general working media such as water, solvents, acids and natural gas, but also for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral or combined.
The three-piece ball valve is a relatively new type of ball valve, which has some advantages unique to its own structure, such as no friction of the switch, the seal is not easy to wear, and the opening and closing torque is small. This can reduce the specifications of the actuators equipped. Equipped with multi-turn electric actuator, it can realize the adjustment and strict shut off of the medium. Widely applicable to the strict cut-off working conditions such as petroleum, chemical industry, urban water supply and drainage