Working principle: piston moves from left to right, form a negative pressure pump cylinder, the liquid tank into the pump by the inhalation valvecylinder.
工作原理：活塞自左向右移动时，泵缸内形成负压，则贮槽内液体经吸入阀进入泵缸内。
2
General pneumatic electromagnetic guide, the process of performing actions cylinder can also be manually controlled pilot valvecylinder process of the implementation of the action.
一般气动是电磁先导、气缸执行动作的过程，也可用手控制先导阀气缸执行动作的过程。
3
General installed in the valvecylinder and the cylindervalve between the tube close to the road, so that the exhaust cylinder without a valve directly into to the cylinder for the purpose of rapid.