Ventilation duct is a kind of metal or composite pipe used for natural ventilation and ventilation projects in industrial production and industrial buildings. It is a kind of indoor ventilation, which can reduce the concentration of harmful substances in urban infrastructure. On the key points of ventilation pipeline project installation, the following is a brief introduction.

在安装通风管道之前，需要仔细检查货物，验证是否有证明书和产品规格来建立原始的恒压条件，产品密封是否完好以及外观是否无效。当铅封损坏且原始固定压力不符合工程设计压力时，应重复抗压强度和气密性测试。在整个安装过程中应用系数很方便，避免了安装后无法使用它的情况。

Before installing the ventilation duct, it is necessary to carefully inspect the goods to verify whether there are certificates and product specifications to establish the original constant pressure conditions, whether the product seal is intact and whether the appearance is invalid. When the lead seal is damaged and the original fixed pressure does not meet the engineering design pressure, the compressive strength and air tightness test shall be repeated. It is very convenient to apply the safety factor in the whole installation process to avoid the situation that it cannot be used after installation.

山东通风管道

Shandong ventilation pipeline

安装阀并通过钻孔和焊接将其连接到机械设备和管道时，通风管道工程图的孔径应与阀的外径相同。带环法兰的阀用于焊接短法兰管，钻孔后长度不超过120mm。阀应以环形法兰的形式安装，阀用螺栓固定到位。钻孔后，焊接一段不大于100mm的英制螺纹管，并安装阀螺栓。严格管理中间标准，而不是轻载，这会缩短管道的使用寿命。

When installing a safety valve and connecting it to mechanical equipment and piping by drilling and welding, the hole diameter of the ventilation pipe engineering drawing shall be the same as the outer diameter of the safety valve. The safety valve with ring flange is used for welding short flange pipe, and the length after drilling shall not exceed 120mm. The safety valve shall be installed in the form of ring flange, and the safety valve shall be bolted in place. After drilling, weld a section of inch thread pipe no more than 100 mm, and install the safety valve bolt. Strict management of intermediate standards, rather than light loads, will shorten the service life of the pipeline.

通过上述的介绍，相信大家对通风管道工程项目安装的关键点有更深入的认识和了解，感谢大家的观看，如有需要，可以直接电话联系我司。

Through the above introduction, I believe you have a more in-depth understanding and understanding of the key points of the ventilation pipeline project installation. Thank you for watching. If necessary, you can contact us directly by telephone.