设计适当的景观灌溉系统使用的隔离阀，以保护您的灌溉系统的其余部分，如果一个组件或喷洒失败。
Properly designed landscape irrigation systems use isolation valves to protect the rest of your irrigation system if a single component or sprinkler fails.
该系统包括给水泵控制、调节阀阀位控制以及安全保护和报警。
The system consists of feedwater pump control, adjusting valve level control, safety and alarm devices.
通风口的保护外壳设计，专用于许多公用水供应系统中的空气释放阀。
VENT GUARD? Is a protective enclosure designed exclusively for the air release valve found in many public water supply systems.
应用推荐