Precision Engineered Components for HVAC

Featured Product from Kelco Industries

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For over 100 years, Flex-Weld, a division of KELCO, has been a leader in the design and fabrication of flexible metal bellows, expansion joints, expansion compensators, metal hose assemblies, expansion loops, and other engineered components

Our products are manufactured in the USA at our facility in Woodstock, IL and are found in hundreds of applications across a wide range of industries. Our precision-engineered components include:

  • Expansion Compensators
  • Braided Hose & Assemblies
  • Expansion Loops
  • Rubber Expansion Joints
  • Externally Pressurized Expansion Joints
  • Internally Pressurized Expansion Joints
  • Bellows-Type Pump Connectors
  • General Purpose / Exhaust Assembly


Delegated Design Services

Our Professional Design Review conducts stress and flexibility analysis to ensure that your piping systems meet ASME B31 piping codes. A written report, calculation results, and stress isometric drawings with recommendations will be provided for your project. Stress & Flexibility analysis, together with a detailed Mechanical Piping Review, will ensure that your mechanical system will function as intended for its useful service life:

  • Design layout, stress analysis, calculations, and submittal
  • In accordance with ASME B31
  • Stamped by licensed professional engineer
  • Product selection
  • Material certifications


Learn more about Delegated Design Services HERE.

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