Pneumatic V-type regulating ball valve: It is a kind of rotary ball valve with a core seat made of metal, or metal to PTFE sealing, its advantage is that the control characteristics of the ball valve and the butterfly valve are combined into one, which can be used as a regulating valve and a shut-off valve. Because of the shearing function, it is more suitable for the working condition that there are particles in the medium. Pneumatic V-type ball valve is a kind of control valve with quarter-angle rotary structure, which can be divided into pneumatic V-type regulating ball valve and pneumatic V-type shut-off ball valve. It is used in conjunction with a valve positioner for proportional adjustment. It can be used with two-position five-way solenoid valve and control box to realize switch control. The dynamic V-shaped ball valve spool is designed with a special shape of the V-shaped notch, which has the advantages of accurate interception and control function, and the pneumatic V-type ball valve is suitable for a variety of control occasions, with compact structure, small size, and can be installed horizontally. Pneumatic actuators, with double-acting and single-acting (spring return), rack and pinion transmission; The large-diameter valve adopts a series of AW type pneumatic actuator pull-fork transmission, with reasonable structure and large output torque, with double-acting and single-acting types.
The main features of the pneumatic V-type control ball valve are:
(1) The pneumatic V-type ball valve is composed of a valve body, a pneumatic actuator and other accessories. It is a control valve with a quarter-turn structure. The V-type ball valve does not need to be repaired for a long time and has a long service life.
(2) Stable regulation characteristics: Pneumatic V-type ball valve has an intrinsic flow characteristic of approximately equal percentage and an adjustable ratio of up to 300:1. As a result, the pneumatic V-ball valve provides accurate control over a wide range of variations.
(3) Upper flow volume: Due to its streamlined shape and full right-angle rotation control, the upper limit of the volume is higher, the passage capacity is large, and the flow resistance is small, so a smaller economical valve size can be used.
(4) The pneumatic V-type ball valve adopts a double-bearing structure, with high mechanical stability and small starting torque, so that the valve has good sensitivity and induction speed.
(5) Stability: The valve body is an integral structure, and the operation is not affected by the pressure of the pipeline, and the leakage of the valve body can be stopped.
(6) Tightness of metal seat: Pneumatic V-shaped ball valve adopts movable metal seat, which has the function of auxiliary compensation, and has superior sealing performance and long service life. In the flow direction, the leakage is 10 rated flow coefficient.
(7) Strong shearing ability: pneumatic V-shaped ball valve adopts metal hard sealing structure, pneumatic V-shaped ball core and metal valve seat in the rotation process, V-shaped notch and valve seat produce a strong shear force to cut off fibers and other impurities, and has a self-cleaning function, to prevent the valve from stuck.
(8) Pneumatic V-type ball valve is compact in structure, small and light, easy to install and easy to maintain.
(9) The pneumatic actuator adopts piston cylinder and crank arm conversion structure, with large output torque and small volume. The actuator adopts a fully sealed waterproof design, and has a high protection level. The cylinder block adopts exquisite mirror cylinder, no oil lubrication, small friction coefficient, corrosion resistance, strong use resistance and stability. The transmission bearings are made of boundary self-lubricating bearings, which are oil-free lubrication, so that the transmission shaft is not damaged.