Slip On Casting Stop Collar API Standard Well Casing Centralizers

Casting Slip On With Set Screws Stop Collar On Set Screw Stop Collar For Oilfield API Stop Collar

Casting Slip On With Set Screws Stop Collar On Set Screw Stop Collar For Oilfield API Stop Collar

Stop collars

Keep centralizers and other casing attachments in place on the casing.

Available in hinged and slip-on styles and size from 2-3/8''- to 30''.

Stop collars use set screws for increased holding force. The hinged design is for applications on upset tubing. These stop collars are available in slip-on for tight clearances and hinged for semi-tight clearances.

Hinged stop collars that use hardened inserts (dogs) to provide a positive lock onto the casing. The specially designed dogs bite into the casing, which provides the stop collar's strong holding force. The recommended torque on the bolt is approximately 25 to 35ft-lb. When properly installed, the hinged stop collar can provide a holding force up to 40,000lb.

Slip-on stop collar with set screws is slipped onto the end of casing and up to the top of the joint to the desired location. The set screws are tightened to approximately 35ft-lbf. This style of stop collar can hold forces up to 20,000lb. They are designed for close-tolerance liner jobs as well as in the installation of cement baskets and cetralizers of different designs. This style stop collar is available in 3 1/2-in. to 30-in. casing sizes.

ADVANTAGES AND MAIN FEATURES

1- limit the movement of centralizers on the pipe

2- manufactured to withstand high axial forces.

3- grip the casing centralizers and cement baskets in its intended locations and provide the desired standoff.

4-coated by powder baking or paint baking in high temperature to increase their corrosion and rust resistance performance

5- Stop collar sizes are ranging from 4-1/2'' to 20''.

144 SERIES - SET SCREW TYPE STOP COLLAR                         

SOLID COLLAR SET-SCREW DEVICE GIVES EXCELLENT GRIPPING FORCE, AND USED WHERE HIGH AXIAL LOADS ARE EXPECTED 

 140 SERIES PIN TYPE STOP COLLAR 

                                THIS HINGED STOP COLLAR HAS AN INTERNAL GROOVE INTO WHICH A LOCKING PIN IS DRIVEN   

142 BOLT-TYPE STOP COLLAR 

THE STOP COLLAR HAS CROSS-BOLT DESIGN THAT MAKES INSTALLATION QUICK AND EASY