1.法兰密封垫采用5mm橡胶板或8501阻燃密封带。
1. The flange sealing gasket adopts 5mm rubber plate or 8501 flame retardant sealing tape.
2.镀锌风管的咬合缝、铆钉缝、法兰翻边四角等缝隙涂有密封胶(如中性玻璃胶)。涂密封胶前，应表面灰尘和油污。
2. Sealant (such as neutral glass adhesive) is applied to the seams of galvanized air ducts, such as bite seams, rivet seams, and flange flanges. Before applying sealant, surface dust and oil stains should be removed.
3.法兰螺孔与铆钉孔之间的距离不得大于100mm。矩形法兰的四角应设置螺孔。弯头、三通等管件的导流片应用平头铆钉固定。严禁使用抽芯铆钉。在铆钉上涂上密封胶。
The distance between flange screw holes and rivet holes shall not exceed 100mm. The four corners of the rectangular flange should be equipped with screw holes. The guide vanes of pipes such as elbows and tees should be fixed with flat headed rivets. It is strictly prohibited to use pop rivets. Apply sealant to the rivets.
4.镀锌风管与法兰连接时，翻边应平整紧贴法兰，宽度不小于7mm。
When connecting the galvanized air duct to the flange, the flange should be flat and tightly pressed against the flange, with a width of no less than 7mm.
5.软接头采用角钢法兰连接。
5. The soft joint is connected with angle steel flanges.
6.角钢法兰连接镀锌风管。
6. Angle steel flange connection galvanized air duct.
7.镀锌风管的咬口形式为单咬口和联合角咬口。
7. The bite forms of galvanized air ducts are single bite and joint angle bite.
8.镀锌风管直管的制造应尽量减少纵向拼接缝，不得有横向拼接缝。当边长小于或等于900mm时，底板不得有拼接缝，大于900mm时不得有横向拼接缝。
8. The manufacturing of galvanized air ducts and straight pipes should minimize longitudinal seams as much as possible, and there should be no transverse seams. When the side length is less than or equal to 900mm, the bottom plate shall not have splicing joints, and when it is greater than 900mm, there shall be no transverse splicing joints.
9.当板材尺寸能满足下料要求，损耗率不会太大时，可以考虑将弯头、三通等配件与直线段连接，减少法兰接口。
When the plate size can meet the cutting requirements and the loss rate is not too high, it can be considered to connect elbows, tees, and other accessories to the straight section to reduce flange interfaces.
This article is dedicated by Jinan Ventilation Pipeline Friendship. For more relevant knowledge, please click on: http://www.jntfgd.com Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned
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