Hinged Bolted Stop Collar from Eneroil Offshore is an economical stop collar suitable for sub-critical annular tolerances. The stop collars can be installed on any position on the casing to limit the axial movement of centralizers and cement baskets.
Available in the size range 3½ " to 20", it has a cross-bolt design which makes it an efficient and user-friendly device.
The Bolted Stop Collar is intended to lock on to the casing without being slipped over the casing and offers quick and easy installation. As specified by API, the holding force of the bolted collar is higher than the centralizer starting force. It utilizes a nut-bolt assembly to fix together and draws the stop collar into a friction grip around the perimeter of the pipe.
This Centralizer Stop Collar can be latched on the casing pipe without having to be slipped on at the end of the casing pipe allowing easy installation
The locking mechanism is at 180 degrees of the hinge.
A single bolt is used to tighten the collar to the casing.
On locking it can be tightened for a holding force upto 1000 % of the centralizer starting force as per API 10D
This design does not make any marks or indentations on the casing