Shell and Tube Heat Exchangers & Unfired Boilers | Boilersupplies

ASME Shell and Tube Heat Exchangers | Boilersupplies.com

Boiler supplies fabricates Shell & Tube Heat exchangers that replace your existing Unit that will meet all industry specifications. We meet all ASME and TEMA (B, C, & R) Requirements as well as all of our units comply with Sections l, lV, Vlll, Div. 1 . Just fill out the easy form below with your Name and info from your existing heat exchanger and Heat-exchangerusa.com can get all documents necessary to produce the exact same unit you have now. If you are only looking for a Replacement Tube Bundle then please follow this link www.tubebundle.com to get a quote on any size tube bundle or any material need for you specific application. Other Manufactures we carry are Bell & Gossett, Armstrong, Alco, American Standard, A.O smith, Cemline, Graham, Old Dominion, Standard Exchange, Taco, Patterson Kelly, Reco, Thrush, Heat Exchanger USA.
Commercial and industrial professionals rely on heat exchangers to transfer heat energy and remove unwanted heat in diverse applications. The service lives of heat exchangers generally range from 10 to 20 years, providing the exchangers are well-maintained. However, constant contact with high temperatures and pressures takes a toll on heat exchangers, which often causes premature failure. Should equipment failure occur, you have an important decision to make: to repair the faulty component or to replace it. Your decision will depend on your budget and the specific issues at hand.
Serviceable and Non-Serviceable Issues
Many issues can be rectified without replacing a heat exchanger. Fouling (or contamination) inhibits proper heat transfer, but this issue can be repaired quickly (with a high maintenance cost though). Heat exchanger tube bundles are also easily replaceable components. Flow misdistribution is another serviceable issue, usually caused by poor design or installation and if just looking to replace the tube bundle go to www.tubebundle.com.
On the other hand, cracking found in heat exchangers are not serviceable. The leading cause of this issue is system overheating—insufficient airflow leads to heat stress, which in turn leads to cracks near the weakest areas in the metal material. Cracked heat exchangers must be replaced immediately to protect other system components and to prevent carbon monoxide leakage.
For more in-depth information, be sure to obtain a copy of Boiler Supplies’ latest eBook titled Heat Exchangers: Restoration vs. Replacement. This free-to-download eBook outlines the criteria for repairing or replacing these critical system components. Additionally, our eBook provides a list of manufacturer products we supply.

Additional Information
Boilersupplies.com carries Heat Exchangers from all the manufactures in the industry such as Adamson, Alco ,American Standard, Armstrong,Bell & Gossett, Cemline, ITT X change,Old Dominion, Patterson Kelley, Reco , Taco along with Thrush. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes: plain, longitudinally finned, etc.
To be able to transfer heat well, the tube material should have good thermal conductivity. Because heat is transferred from a hot to a cold side through the tubes, there is a temperature difference through the width of the tubes. Because of the tendency of the tube material to thermally expand differently at various temperatures, thermal stresses occur during operation. This is in addition to any stress from high pressures from the fluids themselves. The tube material also should be compatible with both the shell and tube side fluids for long periods under the operating conditions (temperatures, pressures, pH, etc.) to minimize deterioration such as corrosion. All of these requirements call for careful selection of strong, thermally-conductive, corrosion-resistant, high quality tube materials, typically metals, including copper alloy, stainless steel, carbon steel, non-ferrous copper alloy, Inconel, nickel, Hastelloy and titanium. Fluoropolymers such as Perfluoroalkoxy alkane (PFA) and Fluorinated ethylene propylene (FEP) are also used to produce the tubing material due to their high resistance to extreme temperatures. Poor choice of tube material could result in a leak through a tube between the shell and tube sides causing fluid cross-contamination and possibly loss of pressure.