22^oC温度下压力为150 psi，非冲击性水，全端口(全流道)
150 psi at 73^oF water–non-shock–full port

Chemtrol True Union多通阀是三向/三位球阀
The Chemtrol True Union Multiport Valve is a 3-Way/3-Position Ball Valve
　　这种球阀特别适合需要控制流向和启闭的应用场合。当手柄旋转到180^o，三(3)位启、闭、启，将中心流入的流体介质转向到一侧出口处(在0^o位置)，然后关闭(在90^o位置)，然后对面出口位置(在180^o位置)。多通阀球阀也可用于从两侧的流进端口转向到中心出口分支上，采用的是中部位置关闭的方式(此时手柄垂直于阀体)。在180^o之间的任何位置，两个流进的流体介质都避免了交叉污染。
　　It is ideally suited for applications where flow direction and on-off control are needed. When the handle is rotated 180^o, the three (3) positions of on, off, and on may direct flow from the branch center-inlet to one side runoutlet (at the 0^o stop position), then to shut-off (at the 90^o position), and then to the opposite side run-outlet (at the 180^o stop position). The multiport may also be used to alternately direct flow from either of the side run-inlet ports to the branch center-outlet port, with shut-off at the midposition (when handle is perpendicular to the body). Cross-contamination of the two inlet streams is prevented at all intermediate positions between the 180^o stops.

Chemtrol True Union分流阀(转向阀)是一种三通/二位球阀
The Chemtrol True Union Diverter Valve is a 3-Way/2-Position Ball Valve
　　这种阀门用于要求在90度角内实现流向的转向或分流，但是不需要实现关闭的应用场合。当手柄旋转90^o时，两个位置的开启能够将流体从分支中心进口转向到一侧的出口(在0^o位置)，然后转到反向出口(在90^o位置)。这种分流阀(转向阀)也可以用来将两个侧面进口的流体转向到分支中心进口端口。分流阀的中间端口并没有关闭的作用。因此，这种阀门在90^o角度内的任何中间位置可以用作比例混合阀使用。
　　It is used for applications where a quarter-turn will achieve diversion of flow, but shut-off control is not required. When the handle is rotated 90^o, the two positions of on and on may direct flow from the branch center-inlet to one side run-outlet (at the 0^o stop position), and then to the opposite side run-outlet (at the 90^o stop position). The diverter may also be used to alternately divert flow from either of the side run-inlet ports to the branch center-inlet port. The internal porting of the diverter makes no provision for shut-off. Therefore, the valve can be used for proportional mixing at all intermediate positions between the 90^o stops.

特点
Features

• 这种阀门问世30多年来，其阀体长度和管套接连接件上的强力改进顶点螺纹始终没有改变。因此，这种True Union结构使得人们可以用新的阀腔更换肮脏的阀门，新旧管接螺母能够互相配合，好像永久性连接着邻近的管道上。不需要破坏或改变管道长度。
  The laying length of the body and the heavy-duty modified-acme threads in the union connections to the body have not changed in the 30-year history of the valve. Thus, the True Union design permits the replacement of a fouled valve with a new body cartridge, which will fit the old union nuts that are likely to be permanently attached to adjacent piping. No disruption or length change of connected piping is required.