control valves

1.The HP-bypass system between the boiler outlet and cold reheat consists of an HP-bypass control valve, a feedwater stop valve and a water injection valve, for steam attemperation .

高压旁路系统由口及冷再热之间的高压旁路控制，给主汽和喷减温组成。

2.By fluviograph survey water level, after clear signal processing, inputs the control water level in PLC, then carries on the control by PLC to the water level control valve to adjust the water level.

由位计测量位，信号处理后输入控制位的PLC中，然后由PLC对位控制控制以调节位。