Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinders. Use a check valve to prevent reverse flow into the cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
2
When the piston moving from right to the left, the cylinder of liquid by squeezing, pressure, discharged from the dischargevalve.
当活塞自右向左移动时，缸内液体受挤压，压力增大，由排出阀排出。
3
When the piston moving from right to left, the cylinder of liquid by extrusion, the pressure increases, the dischargevalve discharge.