Niles Steel Tank is a fabricator of shop built ASME Code pressure vessels and steel tanks for all industries.

We provide quality products to OEM’s, engineering & procurement companies, and facility management firms. Industries served range from refineries, military, chemical plants, aerospace, press equipment manufacturers, boiler manufacturers and many others. Niles Steel Tank is committed to on time delivery of a quality product at a competitive price.

Pressure Vessels

Built under ASME code Section VIII Division 1, NST builds to the following code stamps:  U, S, HLW and National board R stamp.  Constructed in all grades of carbon steel and limited grades of stainless steels. Our pressure vessels are used in many industries across the country and around the world.

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Water Storage Tanks

Niles Steel Tank manufactures hot water storage tanks lined with our exclusive Ultonium glass lining. Also available is our Defender Epoxy suitable for temperatures up to 180 degrees F.

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Power Anodes

Anodes are your first line of defense against corrosion in glass lined hot water storage tanks.  Failure to inspect and replace the consumable anodes, jeopardizes the longevity of the vessel and nullifies the vessel warranty.

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Hot Water Generators

Niles Steel Tank’s hot water generators are designed for durability and efficiency.  Utilizing steam or hot water as the power source, Niles Steel Tank can size and design the correct system for your application.

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Niles Steel Tank Facilities

110,000 sq. ft. Facility

Located in the South West corner of Michigan. The campus covers approximately 12.5 acres, with a building coverage of 110,000 sq. ft.

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NST Capabilities

NST can fabricate up to 13’ dia. and weighing up to 30 tons. Our 20,000 sq. ft. room holding a batch furnace that can process up to an 84” dia. x 11’ long vessel. Rolling up to 10’ wide x 5/8” thick.

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ASME Code and Quality Testing

Every welder at NST is certified to the ASME code. Our inspection procedures include gamma radiography, ultrasonic, magnetic particle, die penetrant, hyrdostatic and pneumatic testing.

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What's New

New Products

See you at 2016 ASHRAE, Orlando

Power Water Heaters

Hot Water Generator Control Packages

Water to Water

Steam to Water

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New Tube Bundle Pricing


NST Products