...ters ），凝结水回收泵（pumping traps），加湿器（humidifiers），排空气阀（air vents），减压阀（pressure reducing valves），蒸汽盘..
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Pilot operated pressure reducing valves 先导式减压阀
Water pressure reducing valves 给水减压阀
proportion pressure reducing valves 比例减压阀
adgustable pressure reducing valves 可调减压阀
proportional pressure reducing valves 比例式减压阀
PRESSURE REDUCING VALVES FOR WATER 水管用减压阀
type piston pressure reducing valves 活塞式减压阀
electronic controlled pressure reducing valves 电控减压阀
Direct-Acting Pressure-Reducing and Pressure-Restricting Valves 消防设施用直接作用的降压和压力控制阀
No relief valve is required where two pressure reducing valves are installed.
如果装上两个减压阀，就不需要安全阀。
Analyze the relationship between flow, pressure, pressure differential and valve opening of pressure reducing valves.
分析了减压阀的流量、压力、压力差和阀门开度的关系。
Building valves - water pressure reducing valves and combination water pressure reducing valves - Requirements and tests.
建筑阀门。供水减压阀和复合供水减压阀。要求和试验。
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