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Table of Material selection£¨1£© |
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Table of shape and size selection£¨2£© |
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Shape |
Duct diameter (inch) |
Length£¨ft£© |
| Round -O |
6, 8, 10, 12, 14, 18, 20, 22......60, 62, 64, 66, 68, 70, 72 |
Per project need |
| Half- round-D |
6, 8, 10, 12, 14, 18, 20, 22......48, 50, 52, 54, 56, 58, 60 |
Per project need |
| Large half-round-HD |
6, 8, 10, 12, 14, 18, 20, 22......48, 50, 52, 54, 56, 58, 60 |
Per project need |
| Quarter-round-Q |
6, 8, 10, 12, 14, 18, 20, 22......48, 50, 52, 54, 56, 58, 60 |
Per project need |
| Rectangle-S |
(22,24,26,28,30...126,134,146)¡Á(16,18,22,24,26,28,30,32) |
Per project need |
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Table of fitting ,component and accessory £¨3£© |
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NOTE£º ¡ª¡ªTable (1)£¬Permeability tolerance is ¡À5%.
¡ª¡ªTable (2)£¬Duct diameter take even number as unit, 2 inch spacing in corresponding with metric unit, such as: 6,8,10,12,.....66,68,70,72 inch to 152,203,254,305.....1676,1727,1778,1829mm.
Metric length measured in m, British length measured in ft.
¡ª¡ªTable (3)£¬The unmarked fittings, components and accessories are defined as standard: like standard inlet and end, slot and nozzle, 12 o'clock-single row suspension, 2 o' clock and 10 o' clock -double
rows suspension. |
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