Stop Collars

DHP can supply a range of stop collar options to suit any centralizer application. All collars are tested in accordance with API 10D II recommendations.

Designed to be run in conjunction with the Spiro-O-Lizer products. The collar is fitted with high holding force knurled tip stainless steel set screws.

Heavy duty steel collar to be run with Expand-O-Lizer SS centralizers. This collar offers more holding force for increased holding power in demanding applications.

A cost effective choice for less demanding applications where high loading of the collar is not envisioned.

Hinged collars are provided in three options for those applications where a slide on collar is not practical. The options are a spiral nail, bolted, or set screw lock system.

A high holding force 360° gripping collar design which can be used as a conventional stop collar on casing and liner applications.