Spiral ducting is a circular round spirally wound length of duct this type of ductwork is generally cost effective as it can be made with 32 less sheet metal than rectangular ducting.
Stainless steel spiral wound duct.
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304 stainless steel is more corrosion resistant than steel.
It can be used in a tougher environment and still maintains the clean and green air.
Biyang stainless steel spiral duct or stainless steel spiral pipe has been in hvac ducting industry for more than 10 years.
24 gauge type 304 stainless steel spiral ductwork with slip connection.
Pvc coated steel combines the strength of steel with the corrosion resistance of plastic.
Stainless steel 304 definition this basic 18 chrome 8 nickel stainless steel is the most versatile and widely used austenitic grade.
It has excellent drawing and forming characteristics and provides excellent resistance to a wide range of corrosives.
Fittings have male ends with a slightly smaller diameter to press fit into duct.
Gauges 28 to 16 for galvanized spiral lock seam 28 to 18 for stainless steel spiral lock seams 0 025 to 0 080 for aluminum spiral lock seams 22 gauge to 3 8 for welded longitudinal seam duct.
A spiral seam makes this duct strong and rigid.
With stainless steel 304 or 316 biyang stainless steel spiral duct is more rust resistant and much tougher than the galvanised steel ducting.