Using this feature with the Purge Valve closed can result in over pressurizing the system or exceeding the Pressure Safety Relief Valvesetting.
在放气阀关闭时使用这个功能,可能会导致系统压力过大或超过压力安全阀的设置压力。
2
The main reasons were due to the defect in the design of safetyvalve secondary circuit and the overlap of the service rating and the setting for safetyvalve popping and reseating.