1. According to the design requirements of supports and hangers of fans, air conditioning units, fan boards and other equipment, vibration isolators shall be set. The types and specifications of Jinan ventilation pipes shall meet the requirements of the design and product technical documents.

2.風管應垂直安裝，間距不大于4m。單根直管應少有兩個固定點。

2. The air duct shall be installed vertically with a spacing of no more than 4m. A single straight pipe shall have at least two fixing points.

3.吊架的螺孔應加工好，吊架應平直，螺紋端應完整光滑。

3. The screw hole of the hanger shall be processed, the hanger shall be straight, and the threaded end shall be complete and smooth.

4.對于長度超過20m的水平懸掛風管，在風管施工時，應少設置一個防擺支架。

4. For horizontal suspended air duct with a length of more than 20m, at least one anti swing support shall be set during air duct construction.

5.支架和吊架不應設置在風口、閥門、檢查門和自動控制機構處，距風口或插頭連接處的距離不應小于200mm。

5. The support and hanger shall not be set at the air outlet, valve, inspection door and automatic control mechanism, and the distance from the air outlet or plug connection shall not be less than 200mm.

6.水平懸掛干管和干風管長度超過20m時，應設置防止擺動的固定點，每個系統不少于1個。

6. When the length of horizontal suspension main pipe and main air pipe exceeds 20m, fixed points to prevent swing shall be set, and each system shall have at least one fixed point.

7.汽水管道應根據標準圖紙、規范和規程選擇具有適當強度和剛度的管道。濟南通風管道直徑或長度超過2500超寬，超重的專用風管支吊架應在規定設計中。

7. Steam and water pipes shall be selected with appropriate strength and stiffness according to national standard drawings, specifications and procedures. The special air duct supports and hangers with the diameter or length of Jinan air duct exceeding 2500 and super wide and overweight shall be included in the specified design.

螺旋風管的安裝顯著減少了管道之間的連接點，將管件連接處的泄漏降低到很低的程度。典型的螺旋風管長度為3~6m，而典型的矩形風管長度僅為1 ~ 1.5m并且只需要一個管接頭來連接兩個螺旋風管，而傳統的矩形風管連接往往需要完全獨立的雙法蘭系統。

The installation of spiral air duct significantly reduces the connection points between pipes and reduces the leakage at the connection of pipe fittings to a very low level. The typical spiral air duct is 3~6m long, while the typical rectangular air duct is only 1~1.5m long and only one pipe joint is needed to connect two spiral air ducts, while the traditional rectangular air duct connection often requires a completely independent double flange system.

1.標準化產品。

1. Standardized products.

螺旋管道配件(管件和接頭)的生產已經高度自動化和系統化，并有工業化的質量控制。

The production of spiral pipe fittings (pipe fittings and joints) has been highly automated and systematic, and has industrialized quality control.

2.安裝成本低。

2. Low installation cost.

圓形風管系統的安裝時間僅為同類矩形風管的1/3。

The installation time of round air duct system is only 1/3 of that of similar rectangular air duct.

3.通常只需要很小的安裝空間

3. Usually only a small installation space is required