Entice the open with some amazing preheader text. Use a little mystery and get those subscribers to read through...
The Latest News
Tube Bundles & Heat Exchangers - When To Retube?
One problem a lot of people seem to have when dealing with heat exchangers or tube bundles is the terminology used by our industry when describing the various parts of the exchanger. Using the picture below, we will identify and correctly name each component part. 



                                       
When to Retube?

It's economical to retube an existing heat exchanger or bundle in the following cases:

1. A straight tube fixed tubesheet exchanger - the bundle in this type of exchanger is not removable, that is the tubesheets at each end are welded to the shell, and the only way to save the existing shell and heads is to retube the exchanger.

2. A removable bundle, where the tubesheet has some intrinsic metal value - retubing a "U" tube bundle, where the tubesheet is steel and worth $50.00 is not an economical proposition. If the tubesheet is stainless steel, brass, cast bronze, copped lined and has some value and you want to reuse it, then you should consider retubing the bundle.

3. Saving money is not your objective, but duplicating the existing bundle is more important. When you retube, you exactly duplicate the bundle and there is no room for error.

Learn More →
Fan Coil Unit
Fan Coil Units
Extensive line of horizontal & vertical units from 200 to 2,000 CFM. Can ship with valves and controls
Read More →
Belt Drive Air Handler
Belt Drive Air Handlers
11 Horizontal & 11 Vertical single wall units for applications requiring 800-12,000 CFM
Read More →
"U" Tube Bundle
Tube Bundles
Offering a wide variety of materials, including: carbon steel, stainless steel, cupro-nickel and admiralty brass
Read More →
Central Station Air Handler
Central Station AHUs
Double-wall units built to match existing unit sizes, ship in sections for easy access through doorways, elevators, stairwells and into mechanical rooms
Read More →
Recent Articles
July 2015
Computer Coil Selections - How They Really Happen!
This one is for all you closet engineers out there who actually want to know how coils are selected and the factors that go into picking a coil.
Learn More →
June 2015
Helpful Hints for Coil Replacement
10 Things you need to know in order to replace coils adequately including helpful hints to make your job easier.
Learn More →
February 2015
Coil Freezing: What a Relief
Why coils fail? - Pressure as the culprit & pressure relief as the answer.
Learn More →
USA Coil & Air

USA Coil & Air is one of the largest and oldest replacement coil companies in our industry. Over the years, we have developed other great lines of HVAC equipment to include direct drive and belt drive fan coil units, central station units with emphasis on the replacement market as well as replacement chillers, water cooled condensers and tube bundles.

 

Every one of our lines is specific to the quick shipment and requirements of the replacement market. You will find that we make this process simple and easy.  We have stocking and expedited schedules for all of our equipment and know how to deal with existing facilities and the problems related to shipment and delivery. We also pride ourselves with great application engineering so that you don't replace equipment without having a true understanding of why the original might have failed and what can be provided in replacement to increase longevity.

 

Many of you may already be USA Coil & Air customers and we thank you for your current and past business. If you are not a customer yet, we hope you will be in the very near future. We believe this newsletter will give you keen insight into our equipment, typical applications and will answer service questions as well. We hope you enjoy.

 


11 General Warren Blvd., Malvern, PA 19355, USA

(800) 872-2645