Joint Lock Ring Technology Welded ID Wall Seal Type
Field Assembly Process – Joining Cut to Length Cement Lined Pipe Segments Using Lock Rings
The 4 bolts are tightened to press the ring into final position.
The Joint Assembly Tool is clamped onto the OD of the end of the cut pipe.
The internal cement is cut back 2 ½" from the end.
A section of cement lined pipe is cut to desired length and beveled.
Half of the Joint Assembly Tool is attached to the end of cut pipe.
A second section of pipe is set on jack stands or dunnage connecting with the pipe alignment plate properly positioning the two pipe ends for fit up.
The second half of the Joint Assembly Tool is attached to the 2nd section of pipe.
The 4 bolts are then tightened to draw the two pipe sections together, compressing the O-Ring between the two Lock Rings.
Pipe is tack welded in four places to secure the joint alignment and maintain O-Ring compression.
The tools are removed and the full penetration joint weld is completed.
The Pipe is now ready to be joined to a full length pipe section or a weld fitting.
A 1" wide cement patch is made behind the ring to the existing cement.
A Joint LockRing is inserted into the end of pipe and the Assembly Tool’s Press Plate is attached using 4 bolts.
This completes the field assembly process for joining a cut section of a cement lined pipe to a full section of pipe.
The Assembly Tools are removed and a Welded Pressure Seal is applied to the pipe ID wall and the Joint Lock Ring.
The following process is used when the onsite contractor needs to field adjust his piping and cut a cement lined pipe length that will be joined to a full length pipe or fitting.
