Steel Packing Sleeves
Also called stuffing boxes or caps, sleeves thread onto each stage of a telescoping cylinder (except the plunger) and house the packing and make the seal between one stage and the next smallest. A bronze gland threads into the top side of the sleeve compressing and holding the packing in place. The sleeve also works as a stroke stop and prevents any stage from telescoping too far. All models of sleeve are kept in Airoflex inventory.