安装螺旋风管应遵循的原则
Principles to be followed when installing spiral air duct
通常我们在安装螺旋风管前，我们都已经好如何准备规划空间，管道的标高范围，就是为了避免可能出现其他不必要的问题。螺旋风管在安装时候，要遵守几点原则。
Usually, before installing spiral air duct, we have prepared how to plan the space. The elevation range of the duct is to avoid other unnecessary problems. Several principles shall be observed during the installation of spiral air duct.
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第一：施工前应设备总管的工程师要求，将各工种的管线，单线画在一张平面图上。每种管道用一种彩色笔。在各交点处综合其标高，看是否有矛盾之处，及时发现，将问题解决在安装之前。
First: Before construction, the pipelines and single lines of each type of work shall be drawn on a plan according to the requirements of the engineer in charge of equipment. One color pen for each type of pipe. The elevation of each intersection shall be integrated to see if there is any contradiction, and the problem shall be solved before installation.
观察现场的施工情况，因为现场施工情况不一样的话，连接的长度也是不一样的，所以我们先要将螺旋风管一节一节的放在支架上衔接起来，这是最开始的步骤。
Observe the construction on site. If the construction on site is different, the connection length is also different. Therefore, we should put the spiral air duct on the support section by section to connect it. This is the first step.
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第二：当小管遇到大管时，有压让无压锌螺旋风管，就好像自来水管与风管相撞，则应当自来水管拐弯。冷、热水管与下水管相碰，则应改变冷、热水管道。
Second: When the small pipe meets the large pipe, the non pressure zinc spiral air pipe is allowed under pressure, just like the water pipe collides with the air pipe, so the water pipe should turn. If the cold and hot water pipes collide with the sewer pipe, the cold and hot water pipes shall be changed.
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第三：为了减少投资扁圆螺旋风管，节省空间，降低层高，有些敷设无坡度要求的管道，可以穿梁敷设。
Third: In order to reduce the investment in flat spiral air duct, save space and reduce the floor height, some pipes without slope requirements can be laid through beams.
螺旋风管温馨水泥杆 保定空压机 保定古筝 塑料增韧剂 拱形护坡模具 保定空调维修 托辊设备  托辊生产线提示：螺旋风管厂家，边长或者直径大于1250mm的螺旋风管吊装时不能超过两节，边长或者直径小于1250mm的风管组合吊装，不能超过三节。
Warm prompt for opening spiral air duct: spiral air duct manufacturer shall not hoist more than two sections of spiral air duct with side length or diameter greater than 1250mm, and shall not hoist more than three sections of air duct with side length or diameter less than 1250mm