Discusses the feature of balance valves, considers that balance valves should be used in place of the orifice, gate valves and stop valves in order to improve regulating function of liquid pipe.
分析了平衡阀的特点，认为为改善液体管路系统的调节功能，用平衡阀取代截流孔板、闸阀及截止阀势在必行。
2
Off penetrable knife gate valve is a new type of fast-flow regulating valve with both ends opened and closed operation of actuators that can double increase headstock speed.
本阀门是一种新型的快速流量调节的刀闸阀，具有两端同时开启、关闭的操作执行器，成倍提高启闭速度。
3
A sluice gate for regulating the amount of water in a millrace or a canal or for emptying a lock.