压铁 meaning in Chinese

foundry weight; pouring weight; mould weight; clip; iron weight; weight

Armature spring fastener
衔铁簧压铁
The weight of the disc / piston is very helpful , especially in low pressure systems
阀瓣/活塞压铁非常有用，特别是对于低压系统。
Note : on pump discharge , the preferred check valves are an in - line spring loaded , swing design with lever and weight or lever and spring
注意：在泵排泄口，首选的止回阀是管内弹簧负载，带杠杆和压铁或杠杆和弹簧的旋启式止回阀。
In the event that a boiler does shut down the stop - check must prevent backflow into the boiler , the weight of the disc and dash pot piston , through the force of gravity , promote rapid sealing so steam and condensate cannot backflow into the boiler even at low pressures
如果锅炉没有关闭截止止回阀，则必须防止回流到锅炉上，阀瓣压铁和缓冲活塞，在重力的作用下，能够迅速实现密封，使得蒸汽和冷凝水即使在低压下也不会回流到锅炉里。