Rectangular Duct

Truestar Air Systems

Rectangular Duct

We are leading Rectangular Duct Manufacturer and Supplier of Factory Fabricated Ducts, Ventilation Duct, TDF Duct, Round Duct, from Gujarat & Telangana. We are known for expertise, delivery & quality of workmanship. We have expertise of design, manufacturing, supply and erection of duct in various industries

Our Products
Regtanguler Duct

TRUESTAR ducts ensure uniformity?symmetry and dimensional accuracy. In an exposed area, we fabricate the ducting to camouflage the longitudinal seams and minimise the visibility of suspension rods. Durable surface finishes and colours are provided through pre-powder coated coils.
we conducted air leakage tests to qualify ducting job quality. This is mandatory for medium/ high pressure ductwork under SMACNA/ DW143 and is usually done on a random sampling basis after installation.

The Company has future on anvil for diversification into allied downstream activities. The Company always looks forward to expand business opportunities by marketing, manufacturing, or developing new and quality products to serve the Indian as well as overseas markets.

Thikness Range
GI – 0.5mm (26G) to 1.5mm  (16G)
Alu. – 0.6mm (24G) to 2.0mm (14G)
SS – 0.8mm (22G) to 1.0mm (20G)
Recommended SMACNA Standard at 4 Feet Transverse Joint Reinforcement
               
For Selection of TDF / Slip on Flange Gauges for 4 Feet Spacing
               
DuctDuct Pressure in Inches / (Pascals)
Dimension1″(250)2”(500)    3”(750)4”(1000)6″(1500)10”(2500)
in (mm)Reinforcement Class – Duct Gauge
200 & Under2626 – F2626 – F2626 – F2626 – F2626 – F2624 – F
200 – 2502626 – F2626 – F2626 – F2626 – F2426 – F2424 – F
251 – 3002626 – F2626 – F2626 – F2626 – F2424 – F2424 – F
301 – 3502626 – F2626 – F2626 – F2626 – F2424 – F2222 – F
351 – 4002626 – F2626 – F2626 – F2626 – F2424 – F2022 – F
401 – 4502626 – F2626 – F2626 – F2624 – F2424 – F2020 – F
451 – 5002626 – F2626 – F2424 – F2424 – F2424 – F2020 – F
501 – 5502626 – F2626 – F2424 – F2424 – F2224 – F2020 – I
551 – 6002626 – F2626 – F2424 – F2424 – F2222 – F1820 – I
601 – 6502626 – F2626 – F2424 – F2224 – F2222 – F1820 – I
    651 – 7002626 – F2626 – F2424 – F2224 – F2022 – I1818 – I
701 – 7502626 – F2426 – F2424 – F2224 – F2022 – I18 – JTR18 – I
 751 – 9002626 – F2424 – F2222 – F2022 – I1820 – I18 – JTR18 – I
901 – 10002426 – F2224 – F2022 – I20 – JTR20 – I18 – JTR18 – I18 – JTR16 – J
1001 – 12002424 – F2022 – I20 – JTR20 – I18 – JTR18 – I18 – JTR18 – I16 – JTR 
1201 – 13002224 – F20 – JTR20 – I18 – JTR18 – I18 – JTR18 – I16 – JTR16 – J16 – JTR 
1301 – 15002224 – F20 – JTR18 – I18 – JTR18 – I18 – JTR16 – I16 – JTR   
1501 – 180022- JTR22 – I20 – JTR18 – I18 – JTR16 – J16 – JTR     
1801 – 210020- JTR20 – I20 – JTR18 – J16 – JTR       
2101 – 240018- JTR18 – I18 – JTR18 – J16 – JTR       
2401 – 270018- JTR18 – I16 – JTR         
2701 – 300016 – JTR           

Notes:
A higher class flange can always be substituted for a lower class (e.g. Class “J” for Class “I”, / Class “I” for Class F”, etc.)

“1. SMACNA- Sheet Metal and Air conditioning Contractors’ National Association Inc-“”HVAC Duct Construction Standards- Metal and Flexible””-2005 (Third
Edition), U.S.A.2.”

“2. Reading Guide- For duct sizes between, say, 901 mm and 1000 mm, when the pressure class is 1″” w.g. static, we require duct gauge of 26 & slip-on
connector F. For the same size range but with static pressure at 6″” w.g. duct gauge of 18 & slip-on connector I. For the same range in case of TDF flanges
in case of pressure class I”” w.g. the gauge should be 24, in case of 6″” w.g. the gauge should be 18 g with TDF flange & with joint tie rod (JTR).”

“3. Use gasket size 10 mm wide and 4.5 mm thick for ducts up to 2″” static pressure in case of slip-on flanges upto rigidity class I and for rigidity class
above I use 15 mm wide & 6 mm thick gasket. Use gasket size of 15 mm wide X 6 mm thick with pressure class 3″” w.g static and above.”

“4. Cleats should be fixed at max. 150 mm distance from corner & the at the center distance of 250 mm for ducts up to 3″” w.g. static. For more than 3″”
w.g. static the center distance should not exceed 150 mm.”

“5. (Not applicable to current specification)
”
For non-critical comfort cooling applications (1″ w.g. pressure class), optional “C & S” or “C & SS” cleat joints can be used.
Upto 450 mm duct size use “C & S” cleats.
451 to 750 mm duct size use “C & SS” cleats.Over 750 mm duct size use Truemate Flanges or Truestar.

“6. TDF can not be made below 250 mm size of the duct. We suggest to use C & S Cleat instead of TDF.
*”

* For 1″ pressure class we can use cleats.
** Cleats not recommended over 1″ pressure class but if it must be used then appropriate sealant is required for all applications above 1″ w.g.
*** In any event cleats should not be used for applications over 3″ w.g.

All Pages