The cast iron gate is a small flat gate, which is widely used in water intake and water diversion, municipal construction, water supply and drainage, irrigation of farmland and other projects. It is usually set in the inlet of channels and culverts. It is used as a working gate to adjust the flow rate, control the water level, or to use the gate to shut down the opening of the gate. It

铸铁闸门有方形、圆形两种。铸铁闸门一般由门叶和门框两部分组成，门体和门框的材料为铸铁，一般整体铸造、整体加工。 

The cast iron gate has two kinds of square and circular. Cast iron gate is generally composed of two parts of door leaf and door frame. The material of door body and door frame is cast iron, which is generally cast and processed integrally. It

门体一般采用面板与加强肋的结构，面板可做平面或拱形。门体一般整体铸造和机加工，但尺寸较大的可采用分块组成式。门体上一般采用整体式金属止水，兼作支承滑块，金属止水用同材料制作的沉头螺钉紧固在门体上，螺钉头部与止水工作面一起精加工，一些尺寸较大的也可“P”形橡皮止水。 

The door body usually adopts the structure of the panel and reinforced rib, and the panel can be made flat or arched. The door body is generally cast and machined, but the larger size can be divided into blocks. The whole type of metal water stop is generally used on the door. The head screw is fastened to the body of the same material made of metal. The head of the screw is refined together with the water stop working face. Some size can also be "P" shaped rubber stop. It

门框为铸铁闸门与基础之间的连接构件，相当于平面钢闸门的埋高部分。门框包括下部门框和上部导轨两部分。下部门框一般整体铸造加工，导轨可用螺栓（螺钉）与门框相接，或与下部门框整体铸造，在门体开启到最高位置时，导轨的顶端应高于门体的水平中心线。

The door frame is the connecting member between the cast iron gate and the foundation, which is equivalent to the buried height part of the plane steel gate. The door frame includes two parts: the lower door frame and the upper guide rail. The lower doorframe is generally cast as a whole. The guide rail can be connected with the door frame with the bolt (screw), or with the bottom door frame as a whole. When the door is opened to the highest position, the top of the guide rail should be higher than the horizontal center line of the door body.