COMPLIANCE INFO 2006 - 2012 - Laserfiche WebLink

Home Browse Search

5 Field cutting and tapering primary pipe Fig. 5-1. Ameron 2" jacket cutting tool Fig. 5-2. Universal Jacket Cutting tool. Safety guard is omitted for clarity. Note. Pin and rods are adjustable for 2 - inch, 3"and 4" sizes. Pin must be in properposition for size to give correct depth of cut. Cutting Use a fine -blade hacksaw, radial cut-off saw or circular saw with abrasive wheel to cut pipe in the field. The cut end must be square to within 3/is inch (5 mm). Hold pipe securely for all cutting and tapering. When using a pipe vise, always wrap the pipe with a protective material such as a'/4 -inch thick rubber pad. Take care not to damage or over -deflect the pipe when tightening the vise. Removing containment with jacket cutting tool The jacket cutting tool is used to quickly remove the containment layer from the end of the pipe. The tool makes tapering of the pipe easier, reduces wear on the tapering equipment and provides a square finished edge to the containment. The tool consists of a pneumatic grinder equipped with a diamond cut off wheel. It is adjustable to allow it to be set at the desired height to cut through the containment without any risk of cutting into the primary pipe. The jacket cutting tool can either be clamped into a vise grip or can be hand operated if the pipe is clamped into a pipe vise. • Remove the containment by activating the grinder and inserting the end of the pipe into the housing • Push the pipe into (or onto) the tool to cut a longitudinal groove in the containment. • When the end of the pipe reaches the stop at the back of the tool, rotate the pipe (or tool), cutting the containment circumferentially. • When cutting the jacket off a pipe to be used with a termination sleeve, a longer cut of jacket is needed to allow enough room to affect a seal on both the primary and containment. Minimum dimensions are shown in the table above. • Rotate back to the starting position and remove the pipe from the tool. • Physically remove the containment layer by prying it open slightly and pulling it off the primary. Use care to not damage the primary pipe during this operation. Note: The cut off wheel will wear down eventually and may need readjustment to cut through the containment. To adjust, set the depth so that the wheel cuts just to the tape layer and not into the sand layer. This will minimize wear on the wheel. See Universal Jacket Cutter Operating Instructions for 2" thru 4" containment cutting and removal. Ln Containment Containment Length Removed Removed Nominal To Bond into To Use Pipe Size a Fitting Termination Sleeve (in) (mm) (in) (mm) (in) (mm) 2 50 2.75 70 3.50 91 3 80 2.75 70 4.00 102 4 100 3.50 91 4.50 114 rotate the pipe (or tool), cutting the containment circumferentially. • When cutting the jacket off a pipe to be used with a termination sleeve, a longer cut of jacket is needed to allow enough room to affect a seal on both the primary and containment. Minimum dimensions are shown in the table above. • Rotate back to the starting position and remove the pipe from the tool. • Physically remove the containment layer by prying it open slightly and pulling it off the primary. Use care to not damage the primary pipe during this operation. Note: The cut off wheel will wear down eventually and may need readjustment to cut through the containment. To adjust, set the depth so that the wheel cuts just to the tape layer and not into the sand layer. This will minimize wear on the wheel. See Universal Jacket Cutter Operating Instructions for 2" thru 4" containment cutting and removal. Ln