Oil reducing valve belongs to the pilot valvepistonvalve.
进口油用减压阀属于先导活塞式减压阀。
2
The pistonvalve design ensures actuation even after many years without operation.
旋塞阀的设计,即使在多年停用之后,也能确保启用。
3
The utility model relates to a pistonvalve which is installed in a cylinder tube of a pressure device, wherein the cylinder tube has an inner ring wall face towards the pistonvalve.