Choose a crack arrestor to fit the size of the pipe needing repair. Allow a minimum annulus of 1/8″ to 1/4″. Wipe the crack arrestor interior and pipe exterior with a degreasing solvent.
- 1If crack arrestors abut each other, fill the gap between with Armor Plate 990 Epoxy Putty.
- 2As the annulus fills, epoxy will begin to flow from the vent holes and tapped injection holes on the crack arrestor. Seal these holes as the epoxy hardens.
- 3Apply Armor Plate 990 Epoxy Putty to each interior and of the crack arrestor. Place the top and bottom halves of the crack arrestor over the repair site. Use weld straps to join the top bottom halves.
- 4Attach the epoxy injection equipment to the tapped injector hole at the bottom of the crack arrestor.
- 5Seal the ends of the crack arrestor with additional AP 990. Wrap the ends of the crack arrestor with fiberglass if necessary.
- 6Pump the epoxy through the injection ports located at the bottom of the crack.
Wil-Cor has 25 years of field experience providing permanent on-line pipe repair for many industries. The most challenging project has been repairs to the pipelines on the North Slope of Prudhoe Bay, Alaska. Working in harsh climates and sometimes remote locations, Wil-Cor understands the necessity to make the repairs right the first time so expensive call backs are not required. In Alaska, as well as other locations around the world, Wil-Cor has met every challenge and set new standards for pipeline repair. Your system may not be as extensive as the Alaska pipelines, but if preventative maintenance and repair is important, call on Wil-Cor to keep your pipeline flowing smoothly with epoxy.