The system consists of feedwater pump control, adjustingvalve level control, safety and alarm devices.
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。
2
The pressure of scraper is controlled by the air pressure adjustingvalve.
配套气压调节阀，控制刮印刀的压力。
3
Outlet pressure and flow are normally controlled by adjustingvalve clearance and it causes considerable energy waste. Frequency control of motor speed is a method of solving the problem.