水利专用市政工程镶铜闸门铸铁镶铜闸门用途：
铸铁镶铜闸门适用于市政、水利工程、工矿、企事业单位及各科研究所在给排水工程中▪对水流的截止、疏通、调节水位等。综合国内外先进结构及工艺、对闸门经多次改进▪新研发的现具有：密封性好、耐磨损强、安装使用方便、寿命长等优点。

◈产品结构及工作原理

1、 铸铁镶铜闸门主要由：
（1）门框、（2）门体、（3）导轨（小规格的与门框连在一起▪大规格的与门框分体）、（4）传动螺杆、（5）吊耳、（也可与门体为一体）、（6）密封面、（7）轴导架、（8）启闭装置等。
2、工作原理：
闸门门框与门体安装在水下部位▪导轨则装在门框上端▪保证了门体工作时▪沿门框▪导轨在一定行程内作上、下垂直方向往复运动。
因闸门在水下工作▪为操作方便▪在水下设置了启闭装置▪由于闸门标高不相一致▪所以传动螺杆的长短▪轴导架的设置与否▪视其具体尺寸而定）。吊耳、吊块、销轴主要用于传动螺杆与门体连接▪使门体作上、下往复运动的动力源来于启闭机。
工作时▪转动启闭机摇把（电动启闭机▪只需揿动控制箱电源开关按钮）使螺母或螺杆蜗轮作旋转运动▪带动传动螺杆工作▪使门体相对对门框作上下往复运动▪同时▪楔紧装置运用楔块可紧可松的工作原理▪使门体下降至设定极限位置时▪门框、门体密封座面能有效地贴合▪起到截水之作用。
门体向上全部打开时▪水则疏通；反之▪则为截止。如因工作需要调节水位时▪也可半启半闭▪以达到疏通、截止、调节水位之目的。
如采用手电两用启闭机▪用户可参考水工机械厂发给贵单位的电动装置说明书调节闸门的开启及关闭的行程。若采用手动启闭机▪则可根据现场情况进行人工关闭或开启。

◈铸铁镶铜闸门主要性能指标 
a）闸门密封面配合间隙≤0.1㎜▪密封座厚度大于10㎜。 
b）密封面每米长度渗水量：正向≤0.7L/min ·m 反向≤1.25L/min ·m 
c）公称压力≤0.1Mpa；密封试验压力0.1Mpa。 
d）工作环境：温度-20℃～120℃ 湿度：95% 工作介质：水与污水 PH 值：5～10
e）安装位置：正常状态下正向迎水、处于铅垂状态。 
f）最大工作水头：单向受压：正向：10m 反向：5m 双向受压：均为10m 
g）启闭速度：不小于0.2m/min▪不大于1.5m/min。 
h）闸框距边壁距离≥300㎜▪距池底距离≥150㎜～250㎜。

  Cast iron brass-inlaid gate is suitable for municipal, water conservancy, industrial and mining, enterprises and institutions, and various research institutes in water supply and drainage engineering_cut-off, dredging, water level regulation and so on. Combined with advanced structure and technology at home and abroad, the gate has been improved many times. The advantages of new research and development are good sealing, strong wear resistance, easy installation and use, long service life, etc. Product structure and working principle 1. Cast iron brass-inlaid gate mainly consists of: (1) door frame, (2) door body, (3) guide rail (small size is connected with door frame, (4) drive screw, (5) lifting ear, (can also be integrated with door body), (6) sealing surface, (7) shaft guide frame, (8) hoisting device, etc. 2. Working Principle: The gate frame and the gate body are installed in the underwater part_The guide rail is installed at the upper end of the gate frame_It ensures that the gate body moves vertically upward and downward along the gate frame_guide rail in a certain stroke. Because the gate works underwater_for the convenience of operation the opening and closing device is installed under water Because the gate elevation is not consistent the length of the drive screw the setting of the shaft guide depends on its specific size (see the sample of our factory products for details). The lifting lugs, lifting blocks and pin shafts are mainly used to connect the driving screw with the door body_The power source for the door body to move up and down reciprocally comes from the hoist. When working_Rotate the rocker handle of the hoist (electric hoist_only need to press the power switch button of the control box) to make the nut or screw worm wheel rotate_drive the driving screw to work_make the door body move up and down relative to the door frame At the same time_wedge tightening device uses the working principle of wedge tightening and loosening when the door body falls to the set limit position_the door frame and the sealing seat surface energy of the door body Effective closure_plays the role of water interception. When the door is fully opened upwards, water will be dredged; otherwise, it will be cut-off. If the water level needs to be adjusted due to work, it can also be semi-open and semi-closed to achieve the purpose of dredging, closing and regulating the water level. Users can adjust the opening and closing of the gate by referring to the manual of the electric device issued to your unit by Qianjin Hydraulic Machinery Plant. If manual hoist_is used, it can be manually closed or opened according to the site conditions. More technical and installation questions can be call, we will have someone to answer technical questions for you. Main Performance Indicators of Cast Iron Copper-inlaid Gate a) Gate Seal Surface Fit Gap < 0.1 Seal Seat Thickness > 10. B) Water seepage per meter length of sealing face: forward < 0.7L/min.m, reverse < 1.25L/min.m c) nominal pressure < 0.1Mpa; sealing test pressure 0.1Mpa. D) Working environment: temperature - 20 ~120 C humidity: 95% working medium: water and sewage PH value: 5 ~ 10e) installation position: normal state of positive water, in a plumb state. F) Maximum working head: unidirectional compression: forward: 10m reverse: 5m bidirectional compression: both 10mg) opening and closing speed: not less than 0.2m/min_not more than 1.5m/min. H) The distance between the gate frame and the side wall is more than 300_and the distance between the gate frame and the bottom of the pool is more than 150~250_.