Stop Collar

Stop Collar

Stop Collar is a device that keep centralizers and other casing attachments in place on the casing. Stop collars are available in hinged and slip-on styles and can fit 2 3/8″ – to 30″ pipe. Our collars are tested in accordance with API 10D II recommendations. We can supply a range of stop collar options to suit any centralizer application in cementing product market.

Features

1—Features of hinged stop collars include:

  • The hinged stop collars, when properly installed can hold up to 7,000 lb. of force.
  • The hinged stop collar can be easily installed to casing.
  • Friction stop collar are used adequately when the condition of the well is normal.
  • Hinged set-screw stop collar are used for increasing holding force. It is first places and centered on the pipe. Then through the open hinge, a nail is installed, followed by tightening the set screw uniformly.
  • These are specifically designed to hold up to 15,000 lb of force.

2—Features of slip-on stop collars include:

  • Onto the end of casing, slip-on set-screw stop collar is slipped to the desired location, up to the top of the joint.
  • Slip-on set-screw stop collar are then tightened around 35 ft-lbf.
  • The force that slip-on set-screw stop collar can hold is up to 20,000 lb.
  • These are specifically designed foe the installation of cement baskets and different designed centralizers as well as for close-tolerance liner jobs and are available in all casing sizes.

Types

1.Bolt Self lock in pings , Low budget
2.Set Screw Easy installation , 1/2″ set screws
3. Spiral Nail Quick installation , Spiral nail design

  

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