Aiming at the problem of net-shell connector's rated load not meeting the requirement of overhead transmission line construction, a special traction tube was developed to help with tension stringing.

针对网套式连接器的额定载荷目前还不能满足架空输电线路工程施工要求这一问题，为方便张力放线试制了一种专用的牵引管。

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It is equipped with asphalt return tube, anti-puffing pressure vent valve, anti-aging overhead nitrogen valve, thermometer, volumeter and output asphalt rapid discharge valve and coupling.

配备沥青溢流管、防冒液呼吸阀、防老化顶置充氮阀、温度计、容量计和输出沥青的快速卸料阀及接耦。

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