Ventilation pipe valve used in chemical, building materials, power plants, glass and other industries ventilation, dust cold or hot gas pipeline environmental projects, as a medium to regulate the flow of gas or cut pipe controls. Pipe ventilation valve structure features: 1, no rod, bolts, etc., reliable, long service life. You can multi-site installation, the flow of influence from the media. 2, using the new form of the middle and short style dish plate welded structural steel fabrication design, compact structure, light weight, easy to install, low flow resistance, high turnover, avoid high temperature expansion effects, easy operation. Advantages pipeline ventilation butterfly: 1, open and close easily and quickly, saving, fluid resistance, can often operate. 2, simple structure, small size, short length of the structure, small size, light weight, suitable for large diameter valves. 3, can carry mud accumulation of fluid in the pipe mouth least. 4, low pressure, can achieve a good seal. 5, regulated performance. 6, when fully open seat effective flow channel larger, less fluid resistance. 7, the opening and closing torque is small, due to the shaft by the role of the media on both sides of the disc is basically the same, but in the opposite direction to generate torque, so open and close more effort. 8, the sealing surface material commonly used rubber, plastic, so good low pressure sealing performance. Contact: LIN Ting Tel: 18713757800 Website: http: //www.btsycgk.com/