Installation of 550lf of new 24″ pre-insulated CHWS/CHWR pipes at Hobby Airport

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A south Houston Airport replaces an existing mechanical pipeline as part of scheduled routine upgrades. 

The project required the installation of 550 LF of new 24″ pre-insulated CHWS/CHWR pipes inside an existing central utility plant. A central unit plant (CUP) is a centralized facility that houses mechanical, electrical, and plumbing systems that serve and support a building. Some of the most common types of equipment found in a CUP include main pumps, chillers, boilers, centralized air compressors, and generators.

For this project, Kilgore Industries was tasked to install the CHWS/CHWR pipes. The Kilgore crew members had to adhere to a background check and a strict daily security clearance protocol that involved communicating with airport security when certain site areas needed to be accessed.

Since the installation and welding of the chilled water pipes were performed on an existing underground tunnel, safety measures were taken to carefully address any confined space concerns that could potentially arise during the length of the project. The crew was scheduled to lower the pipes through a hatch that led to an underground tunnel. As a safety measure, a guardrail was placed around the hatch to protect any crew member from falling, and a hoist was employed to lower the pipes into the tunnel properly. Air quality was tested to assure proper oxygen levels. Ventilators were added to provide adequate oxygen exchange while crew members performed the work. A vacuum was employed to extract the fumes caused by the welding. A Firewatch was assigned to monitor the crew performing the welds and remained on watch while the joints remained hot. As another safety measure, fire extinguishers were placed near the weld areas.

Once all pipes were lowered in the tunnel, crew workers began laying out the pipes to their predetermined pipeline route. Crew workers prepped the pipes and began welding them into sections. Workers performed a total of 52 welds along the tunnel. Then the 24-inch schedule 40 chilled water pipes were tied to an existing 24-inch chilled water riser. Since the completion of the project, the CUP has efficiently supplied air conditioning to various buildings. Staying on top of maintenance and infrastructure upgrades helps to mitigate the risk of dealing with unforeseen emergency repairs and can help extend the reliability and performance of the CUP

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“Regulated by the Texas Dept. of Licensing and Registration, P.O. Box 12157, Austin, TX 78711, 1800-803-9202” TACLA017666C/TECL26749
Texas State Board of Plumbing Examiners, P.O Box 4200, Austin, Texas 78765, 1800-845-6584, M-37953

Subscribe to our Newsletter

Stay up to date with our latest news, announcements and industry related information.

“Regulated by the Texas Dept. of Licensing and Registration, P.O. Box 12157, Austin, TX 78711, 1800-803-9202” TACLA017666C/TECL26749
Texas State Board of Plumbing Examiners, P.O Box 4200, Austin, Texas 78765, 1800-845-6584, M-37953

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