tube bundles

Whether for a scheduled cleaning or a repair to a boiler or tank, we likely all deal with removing tube bundles at one time or another. Tube bundles can be damaged easily if handled carelessly. We've been called for numerous tube repairs on bundles that didn't have problems while in the vessel, but needed repair because they were damaged while they were being pulled or after they had been set aside.

Keep the following tips in mind the next time you're handling your tube bundle and you can help avoid costly and unnecessary repairs.

1. When the bundle is being removed, the dead weight of the bundle should never be supported on individual tubes.
2. Rest the bundle on the tube sheet when lowering the bundle to the ground and use support plates or wood blocks cut to fit the periphery shape of the bundle. This helps displace the weight.
3. When lifting and moving a bundle, use wide slings in a "U" shape to help displace weight over more surface area. (See image above.) Caution: Using chains and thin chokers can damage tubes.
4. If the bundle is small enough for a man or two to lift, minimize grabbing the tubes when moving it. The pulling and bending on the tubes can cause leaks and damage the metal.
5. Keep in mind that baffles can be easily bent or damaged if dragged over rough surfaces.

By remembering to take these precautions, you may be able to avoid some of the common accidents that occur when handling tube bundles.