三片式气动球阀

三片式气动球阀three-pieces pneumatic ball valve

该阀门适用于水，溶剂，酸，蒸汽等一般工作介质，还适用于恶劣的介质中，适用范围广。

The valves are suitable for water, solvents, acid, steam and the general working media, also applies to the bad medium, wide application scope.

特点（characteristic）：

适用工作温度为-29℃~150℃，其结构紧凑，力矩小，密封可靠，维修方便，平等的阀体为介质提供了阻力很小，而且易于操作。

Suitable temperature for - 29 ℃~ 150 ℃, its structure is compact, small torque, reliable sealing, convenient maintenance, full equality body provides the medium resistance is small, and easy to operate.

工作原理和结构说明（the working principle and structure）

1.     本阀门主要由阀体，球心，密封件，阀杆等零件组成。

This valve is mainly composed of body, spherical centre, sealing ring ,valve stem and other parts.

2.     本阀门依靠气动执行器，转动阀杆，使阀杆带动球心在介质里作旋转动作，达到调节流速的目的。

This depend on the pneumatic valve actuator, turn the valve stem, the stem driving  the spherical centre spins in the medium for its rotary movement, its reach the purpose of regulating velocity.