Tube sleeves ( also called flange tubes ) is a thin-walled metallic tube section for repair technique , that bridges the damaged (eroded) inlet area of a tube. Tube sleeving can delay retubing a unit for years, and extremely cost effective.

The sleeves are expanded and inserted to the proper depth in the tube and either hydraulically or mechanically expanded to intimate contact with the host tube

Materials include:

Titanium.
Copper Alloys (Brass, 90/10, & 70/30 CuNi)
Stainless Steel (Austinetic, Ferritic, Duplex)
Nickel based (C-276, Alloy 400 & 600, Ni 200, etc.)
High Temperature (310S, 316H, etc.)
And others.

Size: from 3/8” to 2” OD, with length from 6" – 14 feet .other size will made as dicuss.

       
                   Before                               after

Usage:
to repair of condensers and heat exchangers, in power plants and others (Tube-end erosion/corrosion;Stress Corrosion Cracking;Crevice corrosion;Localized pitting;Ammonia grooving;Improper tube expansion; Weakened tube-to-tubesheet joints)