Oblate spiral duct
Description:
The oblate duct is mainly connecting air conditioner,The heat or cool water through it to get air conditioner to adjust the air flow or air temperature,to make indoor envrionment more comfortable,The spiral duct is installed in the end of air-conditioing system,It mainly used in marine or other bulidings such as hospital,airport,school,threater,and so on, Or anywhere need air ventilation.
The spiral duct is round shape,And be made of stainless steel ,It is more suitable for air conditioning than other material,It could be in high pressure and high velocity air distribution.
The duct mainly be installed on sidewall,Installed cost up to 50% less than traditional rectangular duct work,Vastly reduces air leakage and noise breakout,Reduces energy costs and simplifies air flow measurement.
Specification:
Thickness :Generally insulation thickness δ=12.55mm of duct is suitable for type AR<240,and insulation thickness δ=15mm is suitable for type 345
HVAC duct construction standards.
Diameter:125mm to 400mm.
Length:unlimited.
Insulation Material:Galvanized steel,Aluminum,mild steel,(CRCA),stainless steel,etc.
Surface constructions:plain or corrugated(to increase the rigidity of the ducting by 300%).
Available size:
Pre-heat:
|
Specification |
Process circle dia.D
|
a |
b |
Wgt.kg/m |
|
|
Int.dia. |
Ext.dia. |
||||
|
AR100 |
125 |
150 |
75 |
154 |
2.1 |
|
AR125 |
150 |
175 |
90 |
184 |
2.52 |
|
AR150 |
175 |
200 |
100 |
218 |
3.07 |
|
AR160 |
190 |
215 |
115 |
233 |
3.30 |
|
AR175 |
215 |
240 |
125 |
266 |
3.55 |
|
AR200 |
250 |
275 |
140 |
312 |
4.18 |
|
AR230 |
250 |
275 |
150 |
307 |
4.19 |
|
AR240 |
275 |
300 |
150 |
346 |
5.03 |
|
AR250 |
300 |
325 |
150 |
386 |
5.26 |
|
AR270 |
325 |
350 |
150 |
425 |
5.69 |
|
AR300 |
360 |
385 |
200 |
465 |
6.31 |
|
AR345 |
400 |
425 |
200 |
514 |
6.70 |
non-heat:
|
Specification |
Process circle dia.D |
a |
b |
Wgt.kg/m |
|
BR100 |
125 |
75 |
154 |
4.35 |
|
BR125 |
150 |
90 |
184 |
4.78 |
|
BR150 |
175 |
100 |
218 |
6.57 |
|
BR160 |
190 |
115 |
233 |
6.80 |
|
BR175 |
215 |
125 |
266 |
7.32 |
|
BR200 |
250 |
140 |
312 |
8.40 |
|
BR230 |
250 |
150 |
307 |
8.38 |
|
BR240 |
275 |
150 |
346 |
10.06 |
|
BR250 |
300 |
150 |
386 |
10.94 |
|
BR270 |
325 |
150 |
425 |
11.82 |
|
BR300 |
360 |
200 |
465 |
13.05 |
|
BR345 |
400 |
200 |
514 |
16.93 |
Process drawing:
BR:
AR:
Oblate spiral duct:
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