Preparation before construction:

1.各种安装材料应有出厂合格证或质量鉴定文件及产品清单。

1. All installation materials shall be provided with factory certificate or quality appraisal document and product list.

2.成品风管不允许有变形、畸变、开裂、孔洞、法兰脱落、铆接泄漏、螺栓孔泄漏等缺陷

2. The finished air duct is not allowed to have deformation, distortion, cracking, holes, flange falling off, riveting leakage, bolt hole leakage and other defects

3.安装好的阀体、风口等部件要检查调节装置是否灵活，消声器、油漆层是否损坏。

3. For the installed valve body, air outlet and other components, check whether the regulating device is flexible and whether the muffler and paint layer are damaged.

4.安装所用材料：螺栓、螺母、垫圈等辅助材料应符合产品质量要求。

4. Materials used for installation: bolts, nuts, washers and other auxiliary materials shall meet the product quality requirements.

5.检查现场留孔尺寸、位置及风管尺寸是否符合图纸要求，避免无效安装。

5. Check whether the size and position of the reserved hole on site and the size of the air duct meet the requirements of the drawing to avoid invalid installation.

通风管道风管安装规定：

Provisions for the installation of air duct:

1.严禁其他管线穿过风管。

1. It is forbidden for other pipelines to pass through the air duct.

2.安装在易燃易爆环境中的风管应接地良好，穿过生活区或生产区的风管必须安装严密，不得配备风管接口。

2. The air duct installed in flammable and explosive environment shall be well grounded. The air duct passing through the living area or production area must be installed tightly and shall not be equipped with air duct interface.

3.室外垂直风管的固定不得与避雷针或房屋防雷设施连接。

3. The fixing of outdoor vertical air duct shall not be connected with lightning rod or house lightning protection facilities.

4.风管安装必须符合下列技术要求:

4. The installation of air duct must meet the following technical requirements:

①与通风设备及配件连接风管的配置，不得减少其连接位置的连接管。

① The configuration of air duct connected with ventilation equipment and accessories shall not reduce the connecting pipe at its connecting position.

②吊架不能设置在风口、风阀、检查门及自控机构处，不得固定在法兰上，以免风管变形影响风管功能。

② The hanger shall not be set at the air outlet, air valve, inspection door and automatic control mechanism, and shall not be fixed on the flange to prevent the deformation of the air duct from affecting the function of the air duct.

③吊架安装必须符合相应的安装规定。悬吊风管和部件应设有防止摆动的固定点，如固定支架和支架。固定点的设置位置和数量应根据系统情况而定

③ The hanger installation must comply with the corresponding installation regulations. Suspension ducts and components shall be provided with fixed points to prevent swinging, such as fixed supports and supports. The location and number of fixed points shall be determined according to the system conditions

④法兰垫料及厚度应根据不同气温选择。

④ Flange gasket and thickness shall be selected according to different temperatures.

⑤风管及部件穿过墙壁、屋顶时，应设置防雨罩。穿过屋顶的风管超过1.5m时，应留出电缆。电缆应镀锌或布线。电缆不应固定在风管法兰上，不应拉在避雷针或防雷网上。

⑤ When the air duct and components pass through the wall and roof, a rain cover shall be set. Cables shall be reserved when the air duct passing through the roof exceeds 1.5m. Cables shall be galvanized or wired. The cable shall not be fixed on the air duct flange, and shall not be pulled on the lightning rod or lightning protection network.

⑥柔性短管的安装应弹性适中，不扭曲。柔性金属或非金属软风管长度不应超过2m，不得有死弯和塌陷。

⑥ The flexible short pipe shall be installed with moderate elasticity and no distortion. The length of flexible metal or non-metal flexible air duct shall not exceed 2m, and there shall be no dead bend and collapse.

⑦保温风管的支吊架应位于保温层外，保温层不应损坏。

⑦ The supports and hangers of insulated air duct shall be located outside the insulation layer, and the insulation layer shall not be damaged.

通风管道按用途区分

Ventilation ducts are distinguished by purpose

1.净化空调系统风管：镀锌板、不锈钢;(禁止使用中可能造成粉尘污染的玻璃钢、复合材料);

1. Air duct of purified air conditioning system: galvanized sheet and stainless steel; (it is forbidden to use FRP and composite materials that may cause dust pollution);

2.空调系统风管：镀锌板、彩钢保温板;(可采用玻璃钢、复合材料);

2. Air duct of central air conditioning system: galvanized sheet, color steel insulation board; (FRP and composite materials can be used);

3.环控系统风管：镀锌板、不锈钢;(塑料、玻璃钢、复合材料均可使用);

3. Air duct of environmental control system: galvanized sheet, stainless steel; (plastic, FRP and composite materials can be used);

4.工业通风系统统一风管：钢板、镀锌板;(可采用塑料、玻璃钢、复合材料);注：玻璃钢风管可分为有机和无机，根据设计规范对禁用有机材料的防火要求;

4. Unified air duct of industrial ventilation system: steel plate and galvanized sheet; (plastic, FRP and composite materials can be used); Note: FRP air duct can be divided into organic and inorganic. According to the fire protection requirements of prohibited organic materials in the design code;

5.特殊使用场合风管：矿用胶带风管、矿用塑料风管;(要求阻燃抗静电矿用特性)。

5. Air duct for special use: mine belt air duct and mine plastic air duct; (flame retardant and antistatic mining safety characteristics are required).