The fluid surface forcing control system applied on counter pressure casting is built based on the combined digital valve as the main flow control component.
采用组合式数字阀作为主要流量控制元件，构建差压铸造液面加压控制系统。
By analysis of valve fault type and causes of liquid chlorine cylinder, this paper offers proper operation methods and counter-measures in use, filling and inspection processes.
通过对液氯钢瓶瓶阀故障类型、原因的分析，提出了在钢瓶使用、充装、检验过程中适当的操作方法和对策。
The structure of a new kind of load-sensing counter-balance valve is introduced, the work principles and the structure features are analyzed, and the structure design of key parts is discussed.
介绍了一种新型负载敏感平衡阀的结构，分析了其工作原理及结构特征，并探讨了关键零件的结构设计。
First opens the by-pass valve counter-pressure, then operates the valve, latter opens the hydraulic turbine.
先开启旁通阀平衡压力，再开阀，后开启水轮机。
First opens the by-pass valve counter-pressure, then operates the valve, latter opens the hydraulic turbine.
先开启旁通阀平衡压力，再开阀，后开启水轮机。
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