球形逆止阀能够允许液体单向通过，防止回流，适用于提升阀不是用的应用条件。
Ball check valves allow free flow in only one direction, prevent backflow, and are for applications where poppet style valves may not be suitable.
进口止回阀又称单向阀或逆止阀，是能自动阻止流体倒流的阀门。
Imports, also known as one-way valve or check valve check valve is automatically prevent fluid backflow valve.
将单向阀（逆止阀）与T型接口设计成一体，简化了安装工序，克服由此引发的故障；
The check valve and T-joint are designed into one, this simplifies the installation process and avoids to some troubles.
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