EST Group Hydra-Loc Heat Exchanger Tube Sleeving

Tubular heat exchangers are often subjected to inlet tube end erosion. This erosion  would normally occurs over the first few inches of the tube end; ie thinning of the tube wall. 

The problem can be solved by Installing a metallic tube sleeve through the front end of the tube. The heat exchanger then can be returned to service, thus costly retubing or bundle replacement are avoided.

Previously plugged tubes can be relaimed using sleeving, which will also resulted in increase of exchanger surface area. These Metallic Tube sleeves can be installed using conventional tube expanders or with EST's Hydra-Loc™ hydraulic expansion techniques as shown in the video above..

Advantages of Metalic Sleeves over Plastic Sleeves
- EST Metallic sleeves can be expanded into intimate contact with the host tube. Plastic sleeves are normally glued or loosely inserted into the tube ends.

-EST Metallic sleeves provide better heat transfer characteristics than plastic. 

-ESt Metallic sleeves are considerably thinner than plastic sleeves and do not have to be removed during tube cleaning, ECT and IRIS tube inspections. 

- EST Metallic sleeves can be easily removed compared to glued plastic sleeves.

Please contact us should you require any further information, info@pnr-engineering.com.my