The resilient fiberglass blankets resist damage during fabrication and carry a ul fire hazard classification rating of 25 50.
Double wall spiral duct insulation.
Spiral sg is made from rotary process glass fibers bonded with a thermosetting resin.
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A traditional spiral duct system may be more efficient than the average rectangular duct but double wall spiral ducts offer even more efficiency in terms of energy costs.
Double wall duct and fittings can reduce radiated noise by 25 db or more compared with fiberglass duct board and by 30 db or more com pared with insulated flexible duct.
Double wall insulated spiral is available with solid or perforated liners.
Double wall spiral ducts are as the name suggests comprised of two walls.
It can reduce radiated noise by 25 db or more compared to fiberglass duct board.
It is insulated from the outer parts compared to the rectangle wall duct which has to be insulated from the inner sections.
The insulation in our double wall spiral and fittings has both acoustical and thermal benefits.
X degree fahrenheit and 3 inches 0 09 btu hr x sq.
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Cost dual wall spiral duct is relatively affordable compared to the rectangular wall duct.
Dual wall insulated spiral pipe consists of two concentric spiral pipes with insulation filling the space between the pipes.
To optimize performance the product is offered in a range of densities and thicknesses.
Spiral sg double wall insulation is a thermal and acoustical insulation designed for use in double wall spiral hvac ducts.
Also without unsightly insulation the system is much more aesthetically pleasing.
Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq.
Insulation it is comparatively easy to insulate a double wall spiral duct compared to a rectangle wall duct.
Gasketed up to 36 flanged or spiralmate by ductmate industries connections are also available.
Spiral sg double wall insulation is a thermal and acoustical rotary process fiber insulation designed for use in double wall spiral hvac ducts.
Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal duct.
In double wall round spiral duct a metal inner liner insures that high airflow velocities cannot separate insulation by pulling away from the duct s outer wall and creating erosion or airflow problems.
Mylar barrier is available as a barrier between perforated liner and insulation.
It is shipped from the factory with the insulation pre installed reducing job site labor costs.
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Standard connections are slip fit with couplings.