The pressure range of gas transmission and distribution network, network type, valve arrangement, pipe diameter arrangement, etc.
燃气输配管网的压力级制、管网型式、阀门配置和管径配置等是管网结构因素。
2
It can be used in pipe installation buffer type check valve or pump motor use frequency converter and method of soft starter control to reduce the water hammer effect.
可以采用管道安装缓冲式逆止阀或者水泵电机使用变频器及软启动器控制的方法来减少水锤效应。
3
A new type of control valve for single pipe system is introduced.