Overcome the shortcomings of ordinary water discharge pipe, such as jamming.

弥补排水管经常堵塞不容易疏通，影响正常排水，蓄水。

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A short passage of return pipe on the water discharge pipe may be placed to prevent outside air into evaporator and facilitate the outflow of condensate.

在排水管路上设一小迂回管段，可防止外界空气进入蒸发器内并有利于冷凝水排出。

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Import import trap or trap is known for the steam pipe network and devices, can automatically discharge condensate, air and other non-condensing gas, and blocking water vapor leak valve.

进口疏水阀或称进口疏水器是用于蒸汽管网及设备中，能自动排出凝结水、空气及其它不凝结气体，并阻水蒸汽泄漏的阀门。

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