High Temperature Resistant Ventilation Flexible Canvas Duct Manufacturer
This duct is manufactured to meet the highest quality standards in strength, permeability and fire resistance required
in a flexible air duct.
DUCT FABRIC
A heavy Coated Fiberglass Cloth Fabric.(Coated with silica, to make the duct be resistance to heat )
Mechanically Locked Without Adhesives.
Durable and Scuff Resistant.
HELIX
Corrosive Resistant Galvanized Steel, Formedand Mechanically Locked to Fabric.
SupportingOutside Metal Helix. Available in Aluminum and Stainless Steel.
TECHNICAL DATA
Standard lengths (feet)...........................................10m,Special lengths on request
Inside Diameter (Inches)..................................................... 3”,4”,5”,6”,7,”8”,9”,10”,
12”,14”,15”,16”,18”,20”
Inside Bend Radius (inches)................... ..........................1/2 x I.D. (All Sizes)
Rated Velocity.....................................................................................5500 F.P.M.
Internal Working Pressure (W.G.) ..................... 25” w.g. positive.
10” w.g. negative thru 12” Dia.
5” w.g. negative, 14” & 16” Dia.
1” w.g. negative, 18” & 20” Dia.
Minimum Burst Pressure... .......... .......... ............2 1/2 times working pressure
Operating Temperature Range.............................................-20°C to +350°C
Flame Spread.............................................................Less.than 25
Smoke Developed...................................................Less.than 50
Beside, as the technical was more mature than before, we can make the size according to the customers' request.
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