Pneumatic ball valve's structure characteristics:
Pneumatic actuator: a new ATM series of pneumatic actuators, a double acting and single action (spring reset), rack and pinion drive, safe and reliable; TMAW series of large diameter valves using pneumatic actuator fork transmission, reasonable structure, large output torque, a double acting and single action type (spring reset); reference to the company's pneumatic actuator samples.
Shell structure: fixed ball valve according to different user needs and the actual working conditions of the structures can be designed for casting, forging and welding structure of three kinds of forms, the ball valve full welded structure is mainly applicable to the use of buried.
The unique structure of the valve seat seal: Floating ball valve with a flexible lip seal design, to ensure the reliability of sealing, wear resistance. For the low pressure, high pressure or vacuum conditions with the ball valve, the spring loaded valve seat sealing structure of valve stem seal groove design, reverse, can ensure long-term reliable sealing ball valve. The valve seat materials, high temperature ball valve can use composite graphite or metal materials.
Fixed ball valve and ball according to the size of the pressure, dielectric properties and sealing requirements of different front seal structure, seal structure before and after the ball or a double seal structure. The valve seat materials, high temperature ball valve can be used for digital polystyrene or metal materials.
Blocking and excretion; when the valve is in the closed state, on the downstream side of the seat so that the liquid blocking, matter deposited the body cavity can be excreted through the drainage device.
Automatic pressure relief structure; In any unusual Increase In cavity pressure phenomenon, in the cavity medium can rely on Itself to push the seat and the automatic pressure relief valve, so as to ensure the safety of.
Reliable stem seal; the valve stem seal downloading inverted structure, increased pour sealing force with medium pressure increases, it can ensure a reliable seal, valve stem and, when abnormal boost stem, the stem not smoke.
Structure fire; according to the conditions and user friendliness, the ball valve structure can be designed to fire. The ball of fire design regulations API607 and JB/T6899 standard, once the fire and the soft sealing ring is damaged, a lot of leakage fire structure of ball valve can prevent the medium, to prevent further fires.
Anti static structure; when the operation of the valve, due to friction between the ball and seat, will produce and the accumulation of electrostatic charge on the sphere, electrostatic spark to prevent, special electrostatic device is arranged in the valve, the charge is accumulated in the sphere of.
Full bore necking structure and structure; In order to meet the different needs of users, the ball valve products company wide path, and two series of necking, channel diameter and pipe diameter consistent full bore ball valve, easy cleaning, and reducing diameter ball valve relatively light weight, but the flow resistance is only the same caliber stop valve 1/7, the application prospect of reducing diameter ball valve wider.
