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White Earth

Reliable Tube Service? 

Ragno Boilers offers the most thorough, cost efficient preventative maintenance program for commercial boilers. 

Get 15% off any need repairs when you subscribe to our commercial preventative maintenance program.

Designed specifically for property managers 

Looking For

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Is YOUR Boiler Needing Tube Replacement?

Boiler tubes must be able to endure extremely high temperatures, pressures, and potentially wide fluctuations in demand depending on the application. Boiler re-tubing and tube replacement can extend the life of the boiler, and saves the tubes from deteriorating due to scale build up and cracking. Ragno Boilers also provides a large variety of emergency rental boilers to keep operations running during repairs.

Ragno Boilers can retube boilers by all leading manufacturers like Cleaver Books, Hurst and Johnston Boiler, restoring them to factory specifications. We also offer custom bent tubing, cracked tube sheet repair and tube sheet replacement.

Ragno Boilers specializes in the retubing of:

  • Firetube Boilers

  • Watertube Boilers

  • Heat Exchangers

  • Superheaters

  • Pre-heaters 

  • Pressure Vessels


Boilers and auxiliary equipment should be professionally checked every year. Contact Ragno Boilers for information on our annual equipment service and maintenance contracts. Regularly scheduled inspection and proper boiler maintenance can improve efficiency, and prevent costly and unexpected interruption in production.

Whether performed in house or on site, Ragno has all the necessary retubing equipment required to handle boiler tube replacement, including:

Our Boiler Re-tubing

Process Includes

Inspection - Ragno visually inspects each boiler, and perform NDT testing as needed. We use dye penetrant testing to expose areas of boiler tube sheet cracking.

Boiler Tube Extraction - old boiler tubes are removed along with the tube ends. Any minor tube sheet cracks are then repaired to the ASME code specifications.

Boiler Tube Installation - new boiler tubes (manufactured to meet or exceed specifications) are installed, rolled, beaded and sometimes welded (in the hot pass).


Re-Tubing (Cont.)

Boiler Testing & QC - Ragno hydro-tests the boiler, witnessed by our authorized inspection agency. The boiler is then closed and prepared to fire using all new gaskets. We visually check scale and fits during this phase. Ragno can provide ultrasonic thickness testing, or boroscope the inside of watertube boiler tubes as required. We can also handle code repairs to access points, nozzles and other related equipment. 

Documentation - Ragno provides all completed repair forms for submission to the national board & other applicable regulatory agencies.

How Can Ragno Help YOU

 Whether performed in house or on site, Ragno has all the necessary re-tubing equipment required to handle boiler tube replacement, including:

  • Tube expanders

  • Tube & pipe cutters

  • Tube lubricants

  • Extension couplings & universal joints

  • Handhole cleaning and seat grinding kits

  • Tube end polishing kits

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Extend The Life Of YOUR Boiler

Tubes are the heart of any boiler unit. Improper deaeration and water treatment can significantly affect the lifespan of tubes. Additionally, tube replacement can often indicate water quality issues that need to be addressed.


 Retubing can increase the life of the unit by many years. If you are experiencing excessive scale or system leaks, Ragno can help you determine whether tube replacement is the best option, or if it’s time to replace/upgrade your boiler.


Excessive scaling adheres to the tubes

The tubes become pitted (holes caused by oxygenation, overtreatment of water chemicals, stresses or strains, etc.)

Tubes continue leaking at the tubesheet after several attempts to roll them


We have experienced crews ready to assist in The Bronx, NY, and a large fleet of rental boilers available and fully operational within as little as 24 hours.

Looking To Save On Your Boiler Welding Service? 

Give Us A Call!

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