The model ‘LGE’ Separation Sleeve is a Top No-Go device which is run on wireline and designed to be landed and set in the type ‘L’ sliding sleeve. These are equipped with two packing assemblies, that seal off the upper and lower seal bore of sliding sleeve, Therefore isolating the sleeve ports. Production can be maintained by producing the well through the inside diameter of the tool. The separation Sleeve is also designed with an internal equalizing plug to equalize pressure before retrieving.