Designed to prevent the flow of contaminated water back into the potable water supply, these devices require no plumbing changes, and screw directly onto a sill cock.
其功能在于防止污染水回流到饮用水供应系统中，这些装置不需要对改变管线，只需要直接螺纹旋在洒水龙头上即可。
Pneumatic Angle. Vent valve, filter, the drain valve, the valve, the diaphragm valve, cock, piston valve, valve, valve, copper heat water valves, balance valve, trap, solenoid valves.
排气阀、过滤器、排污阀、底阀、隔膜阀、旋塞阀、柱塞阀、铜阀门、保温阀门、水利控制阀、平衡阀、疏水阀、电磁阀。
In long lassoes from the Cock lake the water flowed full , covering greengoldenly lagoons of sand, rising, flowing.
像是倒一根长套索似的，水从满满当当的科克湖里溢了出来，将发绿的金色沙滩淹没，越涨越高，滔滔滚滚流去。
The apparatus can ensure the high temperature vapor can be vented safely and timely, and thereby avoids deformation or rupture of the pipes and the water cock and bursting of the hot water stove.
本装置能保证高温水蒸气及时安全排出，避免管道和水龙头的变形、破裂以及热水灶炸裂。
The apparatus can ensure the high temperature vapor can be vented safely and timely, and thereby avoids deformation or rupture of the pipes and the water cock and bursting of the hot water stove.
本装置能保证高温水蒸气及时安全排出，避免管道和水龙头的变形、破裂以及热水灶炸裂。
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