1）螺旋风管的安装减少了管与管之间的连接点，使管件结合部的泄漏减少到最低程度，典型的螺旋风管长度是3~6m，而典型的矩形风管的长度只有1~1.5m；且连接两个螺旋风管只需一个管接件，而传统的矩形风管的连接则常常需要一个完全独立的双法兰系统。
1) spiral install duct reduces the connection point between the pipe and the pipe, the pipe leakage with reduced to the lowest level, the typical spiral duct length is 3~6m, and the typical rectangular duct length is 1~1.5m; and connecting the two spiral duct just a pipe connector, and the traditional rectangular duct connection is often in need of a fully independent double flange system.
（2）标准化产品。
(2) standardized products.
螺旋圆风管的配件（管件和接头）的生产已高度自动化、系统化，并具有工业化的质量控制。
The production of fittings (pipe fittings and joints) of spiral circular air duct has been highly automated, systematized and has industrial quality control.
（3）安装费用低。
(3) low installation cost.
圆形风管系统的安装时间只有相类似的矩形管道的1/3。
The installation time of a circular duct system is only 1/3 of a similar rectangular duct.
通常只需较小的安装空间。
Usually only a small installation space is required.
在不增加任何压降的情况下，相同的安装空间内直径为200mm的圆形管道可取代250×150mm的矩形管道。在不增加额外安装空间的前提下，数条平行的圆形管道可取代扁平矩形管道。考虑了所有的因素，在绝大多数情况下，圆形管道所占用的空间都要少于矩形管道。对同样的压力特性，数条圆形管道的安装空间常常与一条矩形管道的的安装空间相同或更少。许多矩形管道系统安装时需要4螺栓系统，因而在管道的各个方向增加40~80mm。
In the case of no pressure drop, a circular pipe with a diameter of 200mm in the same installation space can be replaced by a rectangular pipe of 250 * 150mm. On the premise of no additional installation space, several parallel circular pipes can be replaced by flat rectangular pipes. Considering all the factors, in the vast majority of cases, the space occupied by a circular pipe is less than that of a rectangular pipe. For the same pressure characteristics, the installation space of several circular pipes is often the same or less as the installation space of a rectangular pipe. Many rectangular pipeline systems are installed with 4 bolt systems, thus increasing 40~80mm in each direction of the pipe.
(4)压降低：众所周知，圆形风管的风阻比矩形风管的风阻要小得多。
(4) reduction of pressure: it is well known that the wind resistance of a circular pipe is much smaller than that of a rectangular duct.
