The Higher Shrinkage Ratio Of The Pre-insulated Sleeve Means A Wider Range Of Fit.

When selecting pre insulated sleeve tubing for cables or connectors, its "shrinkage ratio" is a key consideration. Tubing with a higher shrinkage ratio exhibits a greater difference between its original inner diameter and the diameter restored after heating. For example, a 2:1 tubing shrinks to approximately half its original size after heating, a 3:1 to about one-third, and a 4:1 to one-quarter.

A higher ratio allows pre insulated junction sleeve tubing to cover a wider diameter range when unfolded and to fit more tightly to smaller components after heating. Therefore, a single insulated joint sleeve tubing with a high shrinkage ratio can cover a variety of sizes, from thicker cable bundles to thinner single conductors. This design reduces inventory variety, allowing a single product to meet various size matching needs.