平面钢闸门用于关闭和开放泄水通道的控制设施，是水工建筑物的重要组成部分，可用以拦截水流，调节流量、控制水位、排放泥沙和飘浮物等。

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The plane steel gate is used to close and open the control facilities of the discharge channel, which is an important part of the hydraulic structure. It can be used to intercept the flow, regulate the flow, control the water level, discharge sediment and floating objects, etc.
平面钢闸门的门叶包括：承重结构、行走支承、支臂、支铰、止水装置、吊耳等。平面钢闸门埋固部分包括：轨道、铰座、止水座、护角等。平面钢闸门重量轻、耐蚀性好、止水性能好、防腐性能好、使用寿命长、可双向承压受力条件、密封性能好。
The gate leaf of plane steel gate includes: bearing structure, walking support, arm, hinge, water stop device, lifting lug, etc. The embedded parts of plane steel gate include: track, hinge seat, water stop seat, angle guard, etc. The plane steel gate has the advantages of light weight, good corrosion resistance, good water sealing performance, good corrosion resistance, long service life, bidirectional pressure bearing condition and good sealing performance.
平面钢闸门的闸门的过水断面与渠道等宽；超宽型可制作成双吊点启闭，对渠道深度的适应性强；橡胶密封。平面钢闸门由活动部分（也称门叶）、埋固部分和启闭机械3部分组成。
The cross section of the plane steel gate is equal to the width of the channel; The super wide type can be made into double lifting points, which has strong adaptability to the depth of the channel; Rubber seal. The plane steel gate is composed of movable part (also called gate leaf), embedded part and hoist.