When it comes to Single Wall Spiral Duct, contractors typically attach one piece to another on the job site with a Slip Coupling and screws. But, the larger the diameter the more of a challenge it is to use slip couplings…and the quality of connection is rarely good. As a rule of thumb, these contractors […]
Rolled Carbon Steel Prepunched Angle Iron Rings are used in joining duct work together. Conklin stocks diameters ranging from 3″ to 59″ manufactured by Midwest Metal Products. Larger sizes as well as Galvanized, Aluminum and Stainless Steel Rings are also available with very short lead times. Many Fab Shops Use Angle Iron Rings with Vanstone
Spiral Helix’s Model 3600 Tubeformer has a 18 Gauge Mild Steel capacity and the ability to run 3”-64” diameters. The base machine comes standard in 20 Gauge capacity with the forming heads of 4″-20″ diameter included. Forming heads for diameters other than the ones included are in stock at the factory and installed easily by
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Oval Spiral Pipe Machine Oval allows an for “equivalent round” of a spiral pipe diameter in specs where ceiling height is a factor. Spiral Helix offers an Ovalizer (also known as an Oval Spiral Pipe Machine) to manufacture oval ductwork. The ovalizer takes existing spiral pipe and stretches the major axis (horizontal). This means that
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How are shops cutting Taps into Double Wall Spiral Pipe? We’ve introduced the Trumpf Profile Nibbler as a means of cutting the taps in Double Wall Spiral Pipe. At D&N Ductworks in Miami, they offer up another means of doing this: with a Hand Held Plasma Torch. Footnote: Miami Dade Codes are, along with City
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What is Spiracoustic? Spiracoustic comes in sheets of insulation—one side is a foil backing, the other is a black coated grooved surface for the airstream Spiracoustic is a Johns Manville engineered interior liner for spiral ductwork that is positioned as an alternative to the Double Wall method of Perforated and Unfaced Liner by providing a
Why every Sheet Metal Contractor should consider a Spiral Pipe machine Spiral-Helix Tubeformer 3600 For the Mechanical Contractor, the ability to pull out the largest physical sized item from the Air Distribution package is significant. Spiral Pipe is a product in the AD package that’s loaded with uncertainty due to the freight costs on the
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SMACNA approves 28 ga on 14” diameter Spiral and smaller but fabricators use 26ga instead Here is the feedback we’ve received that makes that understandable: 1. The min of the Spiral Helix TF3600, the runaway top seller of Spiral Pipe Tubeformers, is .016 thickness. That’s on the heavy side of 28 ga which means if
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Cutting taps into Double Wall Spiral Pipe The outer wall of spiral duct can be cut with C160 double cut hand shears but it cannot drop down to cut the inner wall. How are contractors cutting taps into Double Wall Spiral Pipe? A. Offset Snips B. Double Cut Hand shear on outer wall, Liner Knife on
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ECONOflange ECONOflange shown sliding inside the outer wall of the spiral duct Conklin Stocks 10″ thru 36″ ECONOflanges for single wall spiral pipe Single Wall Connectors Hemmed vs. Raw Edge: Accuflange rings have a hem on the sleeve. This added feature is often considered beneficial on larger diameters Longer vs. shorter inner sleeve:
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