Dunn Heat Exchangers

Dunn Heat Exchangers

Company Profile

Dunn Heat Exchangers, Inc. is a family owned company offering a full array of heat exchanger cleaning, decontamination, repair, and fabrication services, all under one roof. Since 1968, Dunn Heat has specialized in testing and maintaining shell and tube heat exchangers and related process equipment owned by some of the largest refining and petrochemical companies in the world. Our emphasis on quick equipment turn-around without compromising quality, safety or environmental compliance is what sets us apart from the competition.

Dunn Heat offers the most efficient, safest and environmentally compliant means to maintain hydrocarbon contaminated equipment. We utilize our specially designed automated cleaning bays for shell and tube side hydro cleaning, as well as the largest thermal decomposing chambers of their kind in America. Dunn also offers grit blasting and a chemical pretreatment process for some of the toughest jobs. We handle waste recovery with our on-site water treatment systems, and our self contained covered transport trailers deliver equipment safely nationwide.

Company Website

Corporate Headquarters
410 21st Street South
Texas City, Texas 77592 United
(409) 948-1704

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Heat Exchanger Cleaning

Dunn Heat Exchangers, Inc. operates the most modern, well-equipped heat exchanger cleaning facility in the United States.

Heat Exchanger QA Inspection

Dunn visually inspects equipment in-shop and provides customers with necessary accommodations and quiet work spaces.

Repair and Fabrication

Dunn is best known as an emergency repair shop, but we also engineer and fabricate shell and tube type heat exchangers, both large and small.

Process Equipment Transportation

Dunn owns and operates its own fleet of tractor-trailers for prompt pickup and delivery of process equipment up to 35 feet in length.

Engineering Services

Dunn's Engineering Services Department can assist with thermal and mechanical design, drafting, price estimates, and purchasing of materials.

Plant Turnaround Scheduling

Dunn routinely manages time-critical turnaround assignments involving from one to hundreds of pieces of equipment, often requiring integrated technologies.

Dunn Heat Exchangers's Inspectioneering Content

Thermal Decomposition: A Technique for Cleaning Process Equipment
January/February 2018 Inspectioneering Journal
By Kyle Dunn at Dunn Heat Exchangers, Inc.

Cleaning of heat exchangers and other process equipment is typically done with the use of pressurized water (e.g., hydro-blasting). However, in some situations thermal decomposition, a technique that utilizes heat rather than water to break down foulants, might more effective.

Effectively and Efficiently Cleaning Heat Exchangers — Part 3
January/February 2016 Inspectioneering Journal
By Harold Marburger at Dunn Heat Exchangers

Heat exchangers operating in refineries or petrochemical plants must be thoroughly cleaned and inspected throughout their operational lifetime to ensure safe and efficient operations.

September/October 2015 Inspectioneering Journal
By Harold Marburger at Dunn Heat Exchangers

This article is Part II of a three-part series that explores the various methods, benefits, challenges and solutions to efficiently and effectively clean heat exchangers, both onsite and offsite.

How to Effectively and Efficiently Clean Heat Exchangers
January/February 2015 Inspectioneering Journal
By Harold Marburger at Dunn Heat Exchangers

Whether onsite or offsite, the methods for cleaning shell and tube heat exchangers can vary. Refining and petrochemical operators will agree that high standards must be employed with each method. Choosing the right method can make the difference between smooth operations and unforeseen equipment shutdowns.

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