Forged steel butt welding of high pressure ball valve Q61N

We forged steel butt welding of high pressure ball valve Q61N

Three piece ball valve welding refers to the closure is a sphere, the sphere rotates around the body center line to achieve the opening and closing a valve. Ball valve in the pipeline is mainly used for cutting, distribution and change the direction of the flow of media. Three piece ball valve is widely used in recent years a new type of valve.

A three piece welding ball valve has the following advantages:

1 fluid resistance is small, and its resistance coefficient is equal to the length of the pipe section.

2 simple structure, small size, light weight.

3 close and reliable, the current ball valve sealing surface material widely used plastic, good sealing, in the vacuum system has also been widely used.

4 easy operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.

5 easy maintenance, ball valve structure is simple, seals are generally active, disassembly and replacement are more convenient.

6 in the fully open or fully closed, the ball and valve seat sealing surface and the dielectric isolation, the medium through, will not cause erosion of the valve sealing surface.

7 a wide range of applications, from small to a few millimeters in diameter, up to a few meters from the high vacuum high pressure can be applied.

Two or three piece ball valve welding characteristics and uses of the ball valve is mainly used to cut off or connect the line of medium, can also be used for fluid regulation and control, it is compared with other valves, which has the following advantages.

1, fluid resistance is small, the ball valve is the smallest of all types of fluid resistance, even the diameter of the ball valve, the fluid resistance is quite small.

2, thrust bearings to reduce the friction torque of the valve stem, the valve stem can be smooth and stable operation for a long time.

3, the valve seat sealing performance is good, the use of PTFE and other elastic materials made of sealing ring, the structure is easy to seal, and the ball valve sealing capacity increases with the increase of medium pressure.

4, the valve stem seal is reliable, because the stem only for imitation rotation transported without movement, stem packing seal is not easy to damage, and sealing ability increased with the increase of the pressure medium.

5, due to PTFE and other materials with good self lubrication, and the ball friction loss is small, so the service life of the ball.

6, downloading the stem and the stem head convex order to prevent the stem spray, such as stem seal damage caused by fire, convex order and the body can be formed between the metal contact, to ensure that the valve stem seals.

7, anti-static function: in the ball, stem, valve between the spring, the switch can be generated by the electrostatic process.