Air duct shall not be connected by S type cuttings, C right angle cuttings and vertical joint angle cuttings. The air hose with air cleaning grade 1~5 is not allowed to use snap snap.

凈化空調(diào)系統(tǒng)風(fēng)管的法蘭鉚釘間距應(yīng)小于100 mm，空氣潔凈等級為1～5的風(fēng)管法蘭鉚釘間距應(yīng)小于65mm。

The distance between the flange and rivet of the air duct of the purifying air conditioning system should be less than 100 mm, and that between the flange and rivet of the air duct with the air purifying grade of 1-5 should be less than 65 mm.

風(fēng)管內(nèi)不得設(shè)置加固框或加固筋。

No reinforcement box or reinforcement should be installed in the wind pipe.

風(fēng)管加工前應(yīng)采用清洗液去除板材表面油污及積塵，清洗液應(yīng)采用對板材表面無損害、干燥后不產(chǎn)生粉塵，且對人體無危害的中性清潔劑。

Cleaning fluid should be used to remove oil and dust on the surface of sheet metal before air duct processing. Cleaning fluid should be used as a neutral cleaner which is harmless to the surface of sheet metal, does not produce dust after drying, and does not harm to human body.

通風(fēng)管道制作完畢應(yīng)使用清洗液清洗，清洗后經(jīng)白綢布擦拭檢查達(dá)到要求后，酚醛板，應(yīng)及時(shí)封口。

Ventilation pipes should be cleaned with cleaning fluid after production. After cleaning, the phenolic board should be sealed in time after it has been wiped and inspected by white silk cloth.

彩色涂層鋼板風(fēng)管的內(nèi)壁應(yīng)光滑;板材加工時(shí)不得損壞涂層，被損壞的部位應(yīng)涂環(huán)氧樹脂。

The inner wall of the color coated steel pipe shall be smooth; the coating shall not be damaged when the plate is processed, and the damaged part shall be coated with epoxy resin.

風(fēng)管的咬口縫、鉚接縫以及法蘭翻邊四角縫隙處，應(yīng)按設(shè)計(jì)及潔凈等級要求，采用涂密封膠或其他密封措施堵嚴(yán)。密封材料宜采用異丁基橡膠、氯丁橡膠、變性硅膠等為基材的材料。風(fēng)管板材連接縫的密封面應(yīng)設(shè)在風(fēng)管壁的正壓側(cè)。

The bite seam, rivet seam and flange flange flange flange flange corner crack should be sealed by sealing glue or other sealing measures according to the design and cleanliness grade requirements. Sealing materials should be made of isobutyl rubber, neoprene, modified silica gel and other substrates. The sealing surface of the joint of the wind pipe plate should be located on the positive pressure side of the wind pipe wall.

風(fēng)管制作場所應(yīng)相對封閉，制作場地宜鋪設(shè)不易產(chǎn)生灰塵的軟性材料

The production area of the wind pipe should be relatively closed, and the production site should be paved with soft materials which are not easy to produce dust.

風(fēng)管應(yīng)減少縱向接縫，玻璃鋼通風(fēng)管道，且不得有橫向接縫。

The longitudinal joints and FRP ventilation ducts should be reduced and no transverse joints should be allowed.

風(fēng)管加工連接螺栓、螺母、墊圈和鉚釘應(yīng)采用鍍鋅或其他防腐措施，不得使用抽芯鉚釘。

Connection bolts, nuts, washers and rivets for air duct processing shall be galvanized or other anticorrosive measures, and core-pulling rivets shall not be used.