南開通風(fēng)管道,博海宏達(dá)安裝風(fēng)道吊裝支架,pvc通風(fēng)管道 ：

(1)按照規(guī)范要求，嚴(yán)格控制每種無法蘭接頭使用范圍，如“s”、“c”形插條使用范圍是矩形風(fēng)管長邊不大于630mm，立咬口不大于lOOmm。立咬口90度貼角寬度要和立咬口高度相一致，90度應(yīng)準(zhǔn)確，接口合口連接翻邊時順序逐件敲合，pvc通風(fēng)管道廠家，并背后墊以方鐵，使翻邊立面平整，90度線平直。

(1) according to the specification requirements， strict control of each kind of flange joint use， such as 's'， 'C' shaped cutting scope of rectangular wind the long side is not greater than 630mm，白鐵通風(fēng)管道， vertical bite is not greater than lOOmm. Vertical bite fillet width to 90 degrees and bite height consistent， 90 degrees should be accurate， close connection interface flange piece and knock sequence， behind the pad to iron， the flanging facade smooth，南開通風(fēng)管道， 90 degree straight line.

(2) 嚴(yán)格按風(fēng)管尺寸公差要求。如對口錯位明顯將使插條插偏：小口陷入大口內(nèi)造成無法扣緊或接頭歪斜、扭曲。插條不能明顯偏斜，開口縫應(yīng)在中間，不管插條還是管端咬口翻邊應(yīng)準(zhǔn)確、壓緊，以后連接接頭才會整齊、貼緊。

(2) strictly according to the requirement of air pipe size tolerance. As the counterpart of dislocation obviously will make the cuttings inserted: a small mouth inside into partial cause can not be fastened or distorted， skewed joints. The not significant deviation，pvc通風(fēng)管道， open seams should be in the middle， or whether cutting pipe end bite flange should be accurate， pressing， after the joint will be neat， close.

(3) 翻邊四面管端要平齊在一個面上，小管可以一次用折方機(jī)機(jī)折出，翻邊在整個延長線上應(yīng)等寬。這也是安裝對接時風(fēng)管接口平直所必須的。