以下为句子列表：
英文: 1 CPVC housed stem extensions are not intended for the horizon ball valve series.
中文: 1 CPVC封装的阀杆加长件并不用于水平球阀系列。
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英文: All wetted valve components - test cocks, ball valve shutoffs, pipe nipples, body and cover, and check modules are made from Lead FreeStainless Steel or Plastic construction.
中文: 全焊接阀门部件-测试旋塞，球阀关闭阀，管螺纹接套，阀体和阀盖，以及止回阀模块都采用“无铅”不锈钢或塑料结构。
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英文: At this time, slowly open the test ball valve completely, then a lot of water is discharged at the drainage outlet, close the test ball valve, the drainage device closes too, this shows that action of anti-pollution isolating valve is normal.
中文: 此时缓慢将试验球阀完全打开，这时排污口有大量水排出，关闭试验球阀，排污器也随之关闭，这说明防污隔断阀动作正常。
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英文: Ball valve design includes reinforced/enhanced PTFE seats and electroless nickel plated brass ball, blow-out proof pressure retaining stem, and low profile oval handle.
中文: 球阀结构包括强化聚四氟乙烯（PTFE）阀座和非电解镍镀层黄铜球体，防吹出压力保持阀杆，以及低矮型椭圆手柄。
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英文: Ball valve uses ball with circular hole as open-close part ,through turning ball with stem to realize on-off movement.Ball valve is mainly applied to stop ,distrubute and change flowing direction of medium.
中文: 球阀是用带圆形的通孔的球体作启闭件，球体随阀杆转动，以实现启闭动作的阀门，球阀在管道中主要用于切断，分配和改变介质流动方向。
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