PariInfra Industries Sprial Flat Oval Duct is specially designed for low head room and restricted space location which cannot ascept Round Duct.
The design of duct system utilizing Flat- Oval Duct follows the same procedure used with Rectungular Duct.
The system is first designed on the basis of Circular Duct.
Where space Lamiations require the use of Oval duct , the circular duct is converted to its equivalent rola duct sprial flat - oval duct by using Table-1 . This table has been arranged in a manner that make its uses similar to tables for rectangular duct and should be used i exactly the same way.
Spiral Flat - Oval Duct is made only in the sizes listed in Table -1. For Maximum economy , select your flat - Oval duct size from table-1.
0.50 mm (26 G) to 1.2 mm (18 G) / Thickness of Flat - Oval Sprial Ducts as per SMACNA " HVAC duct construction Standard " -2005 / STandard length : 4, 8, 10, and 12 ft lenghth.
Material: Glaivanized Iron, Aluminium , Stainless Steel.
Surface Constructions: Plain or corrugated ( to increase the radial rigidty of the duct by 300 %.
Surface Finish: Plain, Powder Coated.
| Major Axis mm | Spiral Beam Duct | Logitudinal Beam Duct | Fitting | Suggested Type Of Joint |
|---|---|---|---|---|
| 910 | 24 SWG | 22 SWG | 20 SWG | Groove Slip Connector |
| 915 | 22 SWG | 22 SWG | 20 SWG | Groove Slip Connector |
| 1220 | 22 SWG | 20 SWG | 20 SWG | Flanges |
| 1220 | 22 SWG | 20 SWG | 20 SWG | Flanges |
| 1520 | 20 SWG | 20 SWG | 20 SWG | Flanges |
| 1700 | 20 SWG | 18 SWG | 18 SWG | Flanges |
| Over 1780 | 18 SWG | 16 SWG | 18 SWG | Flanges |
The Sprial Flat oval has considerably less flat surface than rectangular duct. If the Springy structure of flat oval is adequately dampered . It has less surface suscptible to vibration . Thus , properly designed flat oval duct can be superior in performance to rectangula duct.
The Characteristics of flat oval duct parallel to those of circular shaped duct are closely enough that slip joint couplings can be used . Slip joint couplings provides easier sealing against air leaks at the joints. A significant improvement over other types of duct connections.
There is an unfortunate tendency to make a surface application of sealer over a joint an assume that this is a permanently satisfactory solution to the sealing problem. This is not the case , as surface applied sealing has provided that the sealer must be protect by metal, such as within a slip joint , in order to be considered a permanent seal.
The spiral flat oval coupling and joint permits the use of same experience poven materials and techniques for sealing that have been so successfull circular duct joints.
Under certain size and pressure conditions, both flat oval and rectangular duct must be braced and reinforced against Deftection.
"Pariinfra Industries" Spiral flat oval duct can be arranged in different Moc and with insulation material such as Nitrile Rubber, Xlpe, Glasswool etc.
Please feel free to contact us. We will get back to you within 24 hour. Or just call us now.
CALL US: +91-7042394846,
+91-7042394848, +91-7042394849
MAIL US: enquiry@ducttech.co.in, enquiry@pariinfra.com
Address: N-001 Site-5, Kasna Industrial Area, Greater Noida UP.
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