The characters and reality of double parallel system UPS, external bypass design and operation, and the Suggestions about the ordinary maintenance are introduced also.
介绍了并联系统ups的特性及其实现，现场外接旁路的设计与具体操作，以及日常维护中的问题。
Sporadic flow of water through the bypass pipe straight without Kai pumps, water-saving, all-closed system without leakage, without the maintenance of pools.
零星流量时，通过旁通管直供水，无需启泵，节水，全封闭系统无渗漏，不需维护水池。
If the restricted environmental space, use multi-purpose solenoid valve, which eliminates the need to manually bypass valve and three-line maintenance and user-friendly.
环境空间若受限制，请选用多功能电磁阀，因其省去了旁路及三只手动阀且便于在线维修。
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