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1、 Material requirements

1、各類板材、管材等應有質量證明文件(包括出廠合格證、質量合格證明及檢測報告等)和產品清單。

1. All types of plates, pipes, etc. should have quality certification documents (including factory certificates, quality certificates, and inspection reports) and product lists.

2、風管成品不允許有變形、扭曲、開裂、孔洞、法蘭脫落、開焊、漏鉚、漏打螺栓孔等缺陷。

2. The finished air duct is not allowed to have defects such as deformation, distortion, cracking, holes, flange detachment, welding, missing riveting, missing bolt holes, etc.

3、安裝的閥體消聲器、罩體、風口等部件應檢查調節裝置是否靈活，消聲片、油漆層有無損傷。

3. The installed valve body muffler, hood, air outlet and other components should be checked for flexibility in the adjustment device, and for damage to the muffler and paint layer.

4、安裝使用的材料：吊桿、螺栓、螺母、墊圈、墊料、密封條、自攻螺釘、拉鉚釘、各種帆布、無紡布、膨脹螺栓等應符合產品質量要求。

4. The materials used for installation: suspension rods, bolts, nuts, washers, gaskets, sealing strips, self tapping screws, rivets, various canvas, non-woven fabrics, expansion bolts, etc. should meet the product quality requirements.

風管板材厚度規格要求：

Thickness specification requirements for air duct plate:

二、安裝要求

2、 Installation requirements

1、按風管的線找出吊桿敷設位置，單吊桿在風管的線上，雙吊桿可以按托盤的螺孔間距或風管的線對稱安裝。

1. Find the laying position of the suspension rod according to the centerline of the air duct. A single suspension rod is located on the centerline of the air duct, and a double suspension rod can be symmetrically installed according to the screw hole spacing of the tray or the centerline of the air duct.

2、吊桿根據吊件形式，可以焊在吊件上，也可掛在吊件上，焊接后應涂防銹漆。

2. The suspension rod can be welded to or hung on the suspension component according to the form of the suspension component. After welding, it should be coated with anti rust paint.

當風管較長需要安裝一排支架時，可先把兩端安好，然后以兩端的支架為基準，用拉線法找出中間支架的標高進行安裝。

When a long air duct requires the installation of a row of brackets, the two ends can be installed first, and then the elevation of the middle bracket can be found using the wire drawing method based on the brackets at both ends for installation.

3、立管管卡安裝時，應先把更上面的一個管件固定好，再用線錘在處吊線，下面的管卡即可按線進行固定。

3. When installing the riser pipe clamp, the top pipe fitting should be fixed first, and then a wire hammer should be used to hang the line at the center. The lower pipe clamp can be fixed according to the line.

4、風管支吊架間距如無設計要求時，對不保溫風管應符合下表的要求。對于保溫風管的支、吊架間距無設計要求時，按下表間距要求值乘以0.85。螺旋風管的支、吊架間距可以適當增加。

4. If there are no design requirements for the spacing between air duct supports and hangers, non insulated air ducts should comply with the requirements in the table below. When there are no design requirements for the spacing between the supports and hangers of insulated air ducts, multiply the required spacing value in the following table by 0.85. The spacing between the supports and hangers of the spiral air duct can be appropriately increased.

支、吊架間距

Spacing between supports and hangers

1、支吊架不得安裝在風口、閥門檢查孔處，以免妨礙操作。吊架不得直接吊在法蘭上。

1. Supports and hangers should not be installed at air vents or valve inspection holes to avoid hindering operation. The hanger shall not be directly hung on the flange.

2、保溫風管不能直接與支吊架接觸，應墊上堅固的隔熱材料，其厚度與保溫風管厚度相同，防止產生“冷橋”。

2. The insulated air duct should not be in direct contact with the supports and hangers, and should be padded with sturdy insulation material with the same thickness as the insulated air duct to prevent the formation of a "cold bridge".

3、聚氯吞烯風管也與鋼板風管一樣采用支、吊托架，但一般以吊架為主，支架間距按下表的要求制作安裝，但需做好以下幾點：

3. Polychloroprene air ducts also use support and suspension brackets, similar to steel plate air ducts, but generally use suspension brackets as the main method. The spacing between brackets is made and installed according to the requirements of the table, but the following points need to be done well:

注：1.當支管較長時，則應在靠近干管的一端設置一支架。

Note: 1. When the branch pipe is long, a bracket should be set at one end near the main pipe.

2.支架的抱箍制作應與風管留有一定間隙，便于風管伸縮。

2. The hoop of the bracket should be made with a certain gap left between it and the air duct to facilitate the expansion and contraction of the air duct.

風管排列安裝

Air duct arrangement and installation

法蘭連接：

Flange connection:

為保證法蘭接口嚴密性，法蘭之間應有墊料。在無特殊要求的情況下，法蘭墊料按下表選用。

To ensure the tightness of the flange interface, there should be padding between the flanges. In the absence of special requirements, flange gasket materials should be selected according to the following table.

法蘭墊料材質的選用

Selection of flange gasket material

風管排列無法蘭連接

Air duct arrangement without flange connection

抱箍式連接：主要用于鋼板圓風管和螺旋風管連接，先把每一管段的兩端軋出鼓筋，并使其一端縮為小口。安裝時按氣流方向把小口插入大口，外面用鋼制抱箍將兩端的鼓箍抱緊連接，用螺栓穿在耳環中間固定擰緊。

Hoop type connection: mainly used for connecting steel plate circular air ducts and spiral air ducts. First, roll out bulging ribs at both ends of each pipe section and shrink one end into a small opening. During installation, insert the small opening into the large opening in the direction of the airflow, and use steel clamps to tightly connect the drum clamps at both ends. Finally, use bolts to thread them in the middle of the earrings and tighten them.

插接式連接：主要用于矩形或圓形風管連接。先制作連接管，然后插入兩側風管，再用拉鉚釘將其緊密固定。

Plug in connection: mainly used for rectangular or circular duct connections. First make the connecting pipe, then insert the air ducts on both sides, and then tightly fix them with rivets.

插條式連接：主要用于矩形風管連接。將不同形式的插條插入風管兩端，然后壓實。

Insert type connection: mainly used for rectangular duct connection. Insert different forms of inserts into both ends of the air duct and compact them.

軟管式連接：主要用于風管與部件(如散熱器、靜壓箱側送風口等)的相連。安裝時軟管兩端套在連接的管外，然后用特別軟的卡箍把軟管箍緊。

Flexible hose connection: mainly used for connecting air ducts to components such as radiators, plenum chamber side air supply outlets, etc. When installing, wrap both ends of the hose around the connected pipe and then tighten the hose with a particularly soft clamp.

風管安裝就位

Air duct installation in place

根據現場情況，可以在地面連成一片的長度，用吊裝的方法就位，也可以把風管一節一節地放在支架上，逐節連接。一般順序是先干管，后支管。立管的安裝一般是由下向上安裝。安裝就位后進行找平，找正，達到設計規定的要求。

According to the on-site situation, it can be connected to a length on the ground and placed in place by lifting, or the air duct can be placed on the bracket section by section and connected one by one. The general order is to start with the main pipe and then the branch pipe. The installation of vertical pipes is generally from bottom to top. After installation, level and align to meet the design requirements.