The trap shall have straight through pipe connections, the air vent shall be serviced without breaking pipe connections and should be an open float design.
这种疏水阀应该采用直线穿过管道连接方式，应该是一种开口浮子设计。
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。
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