The 77/78-36200 pneumatic V-shaped regulating ball valve is a right angle rotary regulating valve, which consists of a V-shaped ball valve and pneumatic single and double acting actuators. The sealing forms of V-shaped ball valves include soft seals and metal hard seals. Pneumatic V-shaped regulating ball valves are used in conjunction with valve positioners to achieve proportional adjustment.

The pneumatic V-shaped regulating ball valve has the following characteristics:
Due to the simple flow path and low flow resistance of V-shaped ball valves, they have a large flow capacity.
2. The adjustable ratio can reach up to 300:1.
3. It has a high sealing level: the leakage level of the soft sealing structure is GB/T 4213 VI level; The leakage level of the hard sealed structure is GB/T 4213 Grade IV.
4. The pneumatic V-shaped regulating ball valve has a right angle rotating structure, which has a strong shear effect when the valve core rotates relative to the valve seat, making it particularly suitable for regulating and controlling media with fibers and small particles.
5. The actuator adopts the GTX series gear and rack type dual piston pneumatic actuator from Bellofram Corporation in the United States. This actuator has the characteristics of small size, light weight, and high output force. In addition, a non-metallic guide ring with low friction coefficient is installed between the piston and the cylinder body to avoid direct contact between the piston and the cylinder body, reduce friction, and thus make the actuator action sensitive and have a long service life.
6. It is relatively convenient to change the positive and negative action modes. Simply open the cylinder head at both ends of the actuator, rotate the two pistons 180 ° and install them to achieve the conversion of action modes.
7. The whole machine has the advantages of simple structure, easy maintenance, small size, light weight, and easy installation.

Therefore, the 77/78-36200 pneumatic V-shaped regulating ball valve can be widely used in automatic and remote control of industries such as petroleum, chemical, power, papermaking, metallurgy, etc.