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Expansion Tanks Manufacturers and Suppliers

IQS Directory provides a detailed list of expansion tank manufacturers and suppliers. Find expansion tank companies that can design, engineer, and manufacture expansion tanks to your specifications. Peruse our website to review and discover top expansion tank manufacturers with roll over ads and complete product descriptions. Connect with the expansion tank companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of coolant expansion tanks, aluminum expansion tanks, and 10 gallon steel expansion tanks of every type, IQS is the premier source for you.

  • Oak Lawn, IL

    When you work with us, you can rest easy! We cover all the details of manufacturing expansion tanks, but we still consult with you every step of the way. Our products are made from high quality materials and we use innovative manufacturing techniques to keep our customers happy every day they work with us. Find out how we can help you on our website today!

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  • Gladwin, MI

    Gladwin Tank Manufacturing specializes in custom designed and built ASME tanks and ASME jacketed weldments of any shape or size made from carbon steel, stainless, duplex and nickel alloys.

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  • South Bend, IN

    Custom Tank Fabricators has experience providing our tanks to clients across a multitude of industries. With over 45 years of experience & state-of-the-art machines, Custom Tank Fabricators is committed to creating the highest quality products & exceeding your expectations from design to delivery. We are capable of services such as 3D design, engineering, fabrication, and more.

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  • Springboro, OH

    Our expansion tanks are constructed from very durable materials such as stainless steel and carbon steel. These uncompromising solutions are tailored to meet your needs and we are an innovative manufacturer that strives to remain on the forefront of our industry. All of our solutions are thoroughly inspected and extensively tested. Please give us a call today!

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  • Colorado Springs, CO

    Springs Fabrication provides quality ASME pressure vessels, stainless steel pressure vessels, carbon steel pressure vessels, pressure tanks and atmospheric tanks. Springs Fabrication is a premier supplier of engineered pressure vessel products to the highest-quality standards. Call or visit our website to get in touch with a Springs Fabrication representative.

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  • Stratford, WI

    At A&B Process Systems, all aspects of quality engineering, designing and manufacturing are customized to meet individual specifications and comply with internationally recognized codes and standards. Our extensive line of quality products including expansion tanks, are competitively priced allowing you to get the product you deserve at a price you can afford. Visit our website today or give us a call!

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Since 1935, BEPeterson is considered the trusted name in industrial fabrication. At BEPeterson, we provide industrial custom metal fabrication services which allow us meet stringent client requirements and exceed their expectations. This post explores 6 reasons why you should consider us for your next metal fabrication project. Important Features of Custom Metal Fabrication Services We provide metal fabrication services to clients on a large scale basis from our 90,000 sq. feet facility in Massachusetts. We specialize in custom metal fabrication of heavy gauge metal parts and equipment. This capability... Read More

businessIndustry Information

Expansion Tanks

Expansion tanks are small vessels containing pressurized air that are components of closed water heating systems for both residential and commercial buildings. Modern tanks are called diaphragm expansion tanks and are attached and hang down from the boiler piping on the supply side of the system. Older models were larger, horizontal and connected from above the system.

Expansion tanks are easy to maintain, and if they are pre-charged, these tanks are literally maintenance free. All repairs should be done by a certified plumber. These pressure tanks ensure constant pressure within the piping system, and act as a safety device. Without them, the boiler may explode, the pipes could burst and overflowing is a major concern. They are typically composed of a stainless steel tank, blue or green exterior paint and a rubber spacer called a diaphragm located on the inside of the tank. This diaphragm provides an air-tight seal and divides the tank in half-the bottom is pressurized air, while the top is left open for excess water from the boiler. Since they occasionally hold drinking water, expansion tanks, like boilers or other food processing tanks and water pressure tanks, must be sanitary, non-contaminating and conform to health standards. The interior walls of the tanks need to be smooth and groove free. Besides domestic and commercial closed heating systems, most vehicles contain smaller expansion tanks for their heating systems.

The purpose of expansion tanks is to absorb excess water pressure in a closed water heating system. Any water heated in a closed space will expand. Therefore, heating systems need additional space for the increased water volume when it is at a high temperature. The excess water enters the expansion tank, which is filled halfway with pressurized air at 12 psi and divided by a rubber diaphragm spacer. While the water volume is up, the extra water fills the tank. The top half of the tank is directly connected with the heating system, and when the temperature decreases, the pressurized air on the bottom half of the expansion tank pushes the water back into the boiler system. This ensures there will be no pipe damage because of too much pressure. Water heating systems without expansion tanks risk the internal boiler pressure increasing beyond the release setting of the pressure release valve (PRV). When the PRV opens, the water leaves the system and creates pressure that is too low. Expansion tanks are always properly charged with air, which shouldn't exceed 12 psi, or the water will boil and this consistency is a major benefit to using expansion tanks.



Expansion Tanks
Expansion Tanks
Expansion Tanks - Gladwin Tank Mfg., Inc.
Expansion Tanks - Gladwin Tank Mfg., Inc.



Expansion Tanks Informational Video