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ROUND/SPIRAL DUCT
ECO Duct Products round and spiral meets all SMACNA specifications. We Stock 7 and 10 lengths, up to 25. Diameters from 6 to 60
Other sizes are available upon request

Round Spiral
6 to 60 Diameter
28 Gauge to 16 Gauge
Single Wall
Interior Lined
Double Wall (perforated or solid inner wall)

Oval Spiral
5 x 13 through 24 x 81 (Equivalent to 10 to 60 round
24 to 18 Gauge
Single Wall
Interior Lined
Double Wall (perforated or solid inner wall)
Fittings
Elbows
Wyes
Reducers
Taps
Transitions

Materials
Galvanized G60/G90 Conforming to ASTM A90, A568, A653, A924
Aluminum
Stainless Steel

Spiral Duct Submittal and Specification Data Materials
Spiral Duct is manufactured from Commercial Grade G60/G90 galvanized steel, conforming to ASTM A90, A568, A653, A924 prime lockforming material that allows this galvanized material to withstand a maximum of 400 Deg. F temperature. Stainless Steel, Aluminum, Paintable Galvanized and other materials are available upon request.
Standards/Codes
SMACNA, ASHRAE, U.L., UMC., L.A. CITY and other standards or codes upon request.
Gauges
28 gauge thru 16 gauge.
Diameters
Spiral Duct can be made available in diameters from 6" thru 60". Corrugation can be made available from 10" thru 60".
Lengths
Stock lengths are 7 1/2' and 10'. Other lengths, up to 25', available upon request.
Connections
Stock is crimped one end and raw other end. Available with raw ends or flanges, for angle or flat rings.
Field Connections
Consult code and construction standards for proper mating of connections and sealants.