Full bore pipeline ball valves the channel diameter and the same diameter, only a small fluid resistance, but also easy to clean pipes.
全通径球阀的通道内径与管线内径一致，不但流体阻力小，也便于管道清理。
Within the family, small diameter pipes, but also low pressure, see flange connection.
在家庭内，管道直径小，而且是低压，看不见法兰连接。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
与重力排水系统相比，具有管径小、管道安装要求空间小、悬吊管无坡度、下水道连接管和埋地管少等优点。
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