从构造上清除了法兰盘四边的透风安全隐患。根据在法兰盘四周选用新式橡胶密封件而且在各边选用延展性法兰盘夹或选用实际效果更强的顶丝卡，均使风管管道密封性实际效果更为靠谱，经工程项目具体检验，透风成交量放大角铁活套法兰小1/3上下;
The hidden danger of ventilation on the four sides of flange plate is removed from the structure. According to the selection of new rubber seals around the flange plate and the selection of malleable flange clamp or top screw clip with stronger actual effect on each side, the actual sealing effect of air duct is more reliable. According to the specific inspection of the project, the ventilation volume is enlarged by 1 / 3 of the angle iron looper;
简单化了角铁(镀锌扁钢)法兰盘繁杂的制作工艺，非常是去除开在其中很多的手工制作工作，济南通风管道显著地提升了工程施工率。实践经验，选用共板活套法兰，每一插口的制做与安裝，可节约50%左右综合工时。
Simplified the angle iron (galvanized flat steel) flange complex manufacturing process, is very much removed in which a lot of manual production work, Jinan ventilation pipeline significantly improved the efficiency of engineering construction. Practical experience, the selection of common plate looper flange, the manufacture and installation of each socket can save about 50% of comprehensive working hours.

济南通风管道
Jinan ventilation duct
通风管道讲解按用途区分其材质有哪些：
What are the materials of ventilation pipes according to their use
1、净化空调系统用风管:镀锌板、不绣钢; (使用中可能出现尘源污染的玻璃钢 、复合材料禁用)
1. Air duct for purification air conditioning system: galvanized sheet, stainless steel; (glass fiber reinforced plastic and composite materials that may cause dust source pollution are prohibited)
2、空调系统用风管:镀锌板、彩钢保温板; (可使用玻璃钢、复合材料)
2. Air duct for central air conditioning system: galvanized sheet, color steel insulation board; (glass fiber reinforced plastics and composite materials can be used)
3、济南通风管道的环境控制系统用风管:镀锌板、不锈钢; (可使用塑料、玻璃钢、复合材料)
3. Jinan ventilation duct for environmental control system: galvanized sheet, stainless steel; (can use plastic, glass fiber reinforced plastic, composite materials)
4、工业通风系统用风管: 钢板 镀锌板; (可使用塑料、玻璃钢、复合材料)
4. Air duct for industrial ventilation system: steel plate, galvanized sheet; (plastic, glass fiber reinforced plastic and composite materials can be used)
5、特殊使用场合用风管:矿用涂胶布风筒、矿用塑料通风管; (要求阻燃抗静电矿用安全特性)
5. Air duct for special use: Mine coated cloth air duct, mine plastic ventilation pipe; (required flame retardant and antistatic mine safety characteristics)
玻璃钢风管可分有机、无机二种,根据设计规范有消防要求的禁用有机材质;
FRP air duct can be divided into organic and inorganic, and organic materials are prohibited according to the design code; 上一篇：如何测量通风管道内的风速及风量？
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