First, Pneumatic Fixed Ball Valve Product Overview
Pneumatic fixed ball valve is composed of angle stroke pneumatic actuator and fixed ball valve. Using the upper and lower valve stem fixed spool (shaft support) and movable seal seat design, the work is more stable. The pneumatic fixed ball valve has the function of automatic compensation. The two-way sealing valve seat has no clearance, and it has a large shear force and self-cleaning function when turning. The flow resistance coefficient is small, the installation is convenient, the operation is reliable, the sealing is good, the adaptability is strong, and the maintenance is simple. Pneumatic fixed ball valve can be equipped with travel limit switch, solenoid valve, pressure reducing valve, air filter and other accessories. The control switch gas source is in the range of 0.4MPa-0.7MPa, and sends two pairs of passive contact signals to indicate the valve switch. At present the pneumatic fixed ball valve is widely used in petroleum and chemical industry, metallurgy, environmental protection, water supply and drainage, electric power, light industry, papermaking, high-voltage equipment and other industrial automatic control system for centralized remote control or local control.

Two, Pneumatic Fixed Ball Valve Product Characteristics
1, Pneumatic fixed ball valve with fixed ball design. The moving parts of the friction coefficient and small material, operation torque small flexible use.
2, Pneumatic fixed ball valve adopts full diameter or shrinkage, the flow resistance is small.
3, Hard seal pneumatic fixed ball valve adopts two-way metal movable sealing structure, with automatic compensation and self-cleaning function, sealing performance is stable.
4, The use of double movable seal seat design, with two-way sealing function, installation without considering the media flow direction.
5, With anti-static structure design. A conductive spring is arranged between the valve body and the valve body and between the valve rod and the ball, so as to avoid the electrostatic ignition and ignite the flammable medium.
6, With arson function design. In the case of emergency fire, the metal seal is formed on the sealing surface of the valve seat.

[Optional Attachment]:
1, Cut off accessories: single electronic controlled solenoid valve, double electronic controlled solenoid valve, limit switch return device.
2, Adjustable accessories: Electrical positioner, pneumatic positioner, electrical converter.
3, Gas processing accessories: air filter pressure reducing valve, gas source treatment sanlian.
4,  Manual mechanism: HVSD hand operating mechanism.

Three. Other Parameters Of Pneumatic Fixed Ball Valve
1, valve body

2、Valve Internals

3、Executive Mechanism

Four, Pneumatic Fixed Ball Valve Main Parts And Materials

Five, Pneumatic Fixed Ball Valve Main Performance Indicators

Six, The Main Performance Specification Of Pneumatic Fixed Ball Valve