Using this feature with the Purge Valve closed can result in over pressurizing the system or exceeding the Pressure Safety Relief Valve setting.
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。
As thermal expansion conditions develop, pressure builds up to the setting of the relief valve. This will cause discharging of small quantity of water.
随着热量的增加，压力也随着增加，并达到安全阀的压力设置。此时将导致安全阀排泄出少量的水。
Incorporate a calibrated adjustment feature for setting the valve to the relief pressure required.
具有刻度可调节功能，可以根据需要设置阀门的压力最高值。
Incorporate a calibrated adjustment feature for setting the valve to the relief pressure required.
具有刻度可调节功能，可以根据需要设置阀门的压力最高值。
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