Detailed information of V-shaped ball valve Pneumatic V-shaped fixed ball Germany VATTEN
The V-shaped ball valve is a special type of ball valve, and its closing element is a V-shaped opening on the valve body. The V-shaped opening has a sharp cutting edge, and during the rotation of the valve body, it forms a shear effect with the valve seat, which has a strong cutting force on the medium. The V-shaped opening of the valve body forms a fan-shaped area with the valve seat flow channel, and during the rotation process, the cross-sectional area of the flow channel can be changed to adjust the medium. It is an angle rotation regulating valve, and its sealing performance is the same as that of ordinary ball valves, making it have both regulating and switching functions. It is widely used in industrial process control systems and is matched with pneumatic or electric actuators.
Characteristics of Pneumatic V-shaped Ball Valve:
1. Valve body integral structure: Both clamp type and flange type V-shaped ball valves have an integral side mounted structure with strong structural rigidity, which is not easy to cause deformation and leakage.
2. Upper and lower self-lubricating bearings: The valve body is equipped with upper and lower self-lubricating bearings, which have a large contact area with the valve stem, high load-bearing capacity, low friction coefficient, and reduce the torque of the valve.
3. The valve seat can be selected as metal hard seal or PTFE soft seal according to the needs of the medium and working conditions: the sealing surface of the metal hard seal valve seat is welded with hard alloy, and the ball surface is plated with hard chromium or hardened by spray welding, ion nitriding, etc., which enhances the service life and temperature resistance of the sealing surface; Soft sealed PTFE valve seats or reinforced PTFE valve seats have good sealing performance, corrosion resistance, and a wide range of applications.
4. Economic practicality: The valve body is lightweight, the valve stem torque is small, and the corresponding specifications for pneumatic or electric actuators are small. Compared with other types of regulating valves, it is * * * high.
5. The medium has a wide range of adaptability: due to the shear force between the V-shaped opening and the valve seat, as well as the smooth and round flow channel in the valve cavity, the medium is not easily accumulated in the cavity. Therefore, in addition to liquid media, it is more suitable for system control with fiber and solid particle media.
6. Small flow control: By machining the special V-shaped opening of the small-diameter valve core, small Cv value control can be achieved.
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