Galvanized spiral air duct
<br> The company specializes in processing, sales and installation of spiral air duct, dust removal spiral air duct, spiral ventilation pipe accessories. For details, please contact: 0769-81256298 / 13922901739
1.5-2 米就需要设置一对法兰，而法兰连接处密封性效果有一点容易泄漏。 Compared with rectangular ducts, spiral ducts have greater advantages in terms of tightness, strength, and area-perimeter ratio. In terms of production and installation, rectangular ducts are limited by the size of the steel plate. A pair of flanges needs to be provided, and the sealing effect of the flange connection is a little easy to leak. 3-6 米长也可以根据用户的需要来定制，从而可减少风管的连接配件，也达到减少泄漏点。 The length of the spiral duct can usually be 3-6 meters or can be customized according to the needs of the user, which can reduce the connection accessories of the duct and reduce the leakage point. At the same time, the small diameter spiral air duct can be connected with blue, so that the leakage is less, and the reduction of leakage reduces the daily operation cost and energy consumption. 1.5 倍工作压力下接缝处无裂开，由于螺旋风管的强度高，在制作螺旋风管时的板材厚度可以比一般的圆形折铁皮风管适当减少材料厚度 , 而制作螺旋风管的材料常用镀锌板、不锈板材料加工制作而成，其中不锈钢板螺旋风管因材料具有耐腐蚀性强，但是由于原材料价格昂贵，从而导致工程成本高故使用比较小。 The seam of the spiral duct is circumferential. The strength of the joint is much higher than the strength of the radial straight seam. Therefore, the spiral duct can ensure no cracks at the joint at 1.5 times the working pressure. High strength, the thickness of the plate when making the spiral duct can be appropriately reduced compared with the general circular folded iron duct , and the spiral duct is usually made of galvanized sheet and stainless sheet material, of which stainless steel The plate spiral air duct is relatively small in use due to its high corrosion resistance, but because the raw materials are expensive, which results in high engineering costs. The galvanized spiral duct made of galvanized sheet also has better corrosion resistance, but the price is one third lower than that of the stainless steel spiral duct, which leads to the widespread use of galvanized sheet spiral duct.