Why using spiral duct improves duct design – SNIPS article

In 1948, research by R.G. Huebscher established flow resistance for different shapes of ductwork at equal velocities, which allowed the creation of the duct-sizing calculator or “Ductulator” for picking equivalent sizes of rectangular ducts based on the baseline round duct size. The Ductulator is a shortcut that only works on paper if you reduce the velocity pressure to a negligible factor around 1,500 feet per minute or less in any ductwork system. At the maximum 1,500 ...

2014 was productive for Optimized Spiral using VariTRANE.

2014 was productive for Optimized Spiral using VariTRANE. A mechanical contractor in New Jersey used VariTRANE to save $80,000 cost on a 300T fitness center. A strategic partner in Utah used VariTRANE to save $70,000 cost on a 63,000 SF office building. A strategic partner in California used VariTRANE to save $60,000 cost on a 100,000 SF County Jail. A strategic partner in North Carolina used VariTRANE to save $10,000 cost on a 20,000 SF shell office building. A Trane ...

SPECIAL… BRING IT ON!

Guaranteed: $20,000 in engineered spiral static regain savings for preparing a redline system design up to 34,000 SF or 100 tons, a value of  $10,000. Included: a one-day static regain seminar at your location before December 14, 2015, Included: 12 months of support consultation by phone and email, a value of  $10,000 a value of    $7,500 a value of    $2,500 Total value for my spiral static regain services provided is  Total value of $20,000 My fee for the August Special Value is $10,000 prepaid plus travel expenses. For August ...

Is spiral ductwork more quiet than rectangular ductwork?

YES, ASHRAE says spiral is always more quiet than rectangular. See this table from 2011 ASHRAE Applications.  WOW, a lot quieter!

Trane Strategic Partner Exchange – 6 Real World Examples

14.7% lower SP and BHP by using Static Regain

I now officially claim that “Spiral Static Regain ductwork systems can deliver 14.7% lower SP and BHP on strategically designed layouts compared to equal rectangular ductwork layouts.”   Read the study that we put together. 14.7% lower SP and BHP on strategically designed layouts compared to equal rectangular ductwork layouts STUDY

iMED Campus – 5 story- Naperville, IL

iMED Campus - 5 story, 100,000 SF of Class A medical and professional space. served by two 105 Ton TRANE Intellipack units on twinning curb  to spiral static regain multi-runrisers totalling 19,900 lbs costing $128,000 compared to 38,000 lbs of rectangular costing $229,300 saving $101,300 or $1.01 per SF

Pewaukee, WI – Static Regain Spiral Examples

The attached photos show best practices for Spiral Static Regain and Seal Class A for all spiral. Thanks to JF Ahern Co for an excellent installation example. This spiral ductwork with seal class A meets the ASHRAE 90.1-2010-6.4.4.2.1 requirements. This project saved 22% of the ductwork cost using spiral static regain and is part of the 6 Job Savings chart in the NEWS section for the TRANE Strategic Partners Exchange.             [gallery link="file" orderby="title"]  

John Reints visiting TRANE about strategic partnership

John Reints traveled to La Cross, WI today to speak with TRANE about developing strategic partnerships. Details were finalized in LaCrosse for John Reints and Smitty Smithart to deliver a qualitative program to the TRANE Strategic Partners in Orlando, FL, April 15-17. The group represents 80 of the top HVAC contractors in the USA gathered at the request of the TRANE Co for their annual Strategic Partner Exchange. The program is titled "GREEN DUCTWORK DONE RIGHT- it ain't MAGIC" ...

What is Static Regain?

This design methodology sizes the supply duct system to obtain uniform static pressure at all branches and outlets. Much more complex than equal friction, static regain can be used to design systems of any pressure or velocity. Duct velocities are systematically reduced over the length of the distribution layout, which allows the velocity pressure to convert to static pressure, offseting friction losses in the succeeding section of duct. Systems designed using static regain require little ...