Spiral Pipe Galvanized

ADMP’s spiral pipe, the ultimate in pressure—tight circular tubes of superior quality, are fabricated in exact sizes using galvanized steel. The pipe consists of a smooth interior for low friction loss and a 4 ply spiral lockseam entirely on the outside for high strength and rigidity. Commonly produced for air conditioning systems as well as critical installations including ventilation, automobile exhaust, and dust collection systems.


Couplings conform to all specifications of the SMACNA 2005 3rd edition manual, (unless otherwise specified) as
recommended for (2” – 10” W.G. Positive Static Pressure).
Seam metal is held to plus or minus .006 of an inch.
ADMP’s spiral pipe will meet or exceed the gauges listed in the SMACNA 2005, 3rd edition manual.


4” – 10” are available in 1 inch increments
12” – 64” are available in 2 inch increments

Hydrostatic Pressures:

Hydrostatic pressures to seam failure – All pressures in lbs. per square inch.



Long Seam Pipe:

Solid Welded Lapped Seam shall be provided in 4 foot lengths. Gauges are as listed in the SMACNA 2005 –
HVAC Duct Construction Standards Metal and Flexible – 3rd Edition – Table 3-5.



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