The stop ring design is a one-piece model that slips over the pin end of the pipe and secured in place with set screws. The stop rings have a superior holding force and are especially applicable in close tolerance situations.
The stop collars are manufactured from tubular steel or high grade alloys to allow the centralizers a flat service to contact. The flat surface allows the centralizers a smooth bearing surface for rotational applications. The stop rings are available in a full range of sizes from 2 - 7/8" thru 20".