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Those efforts were driven in part by two deadly pipeline-seam accidents since 2007, experts say. One raised concerns that existing tests might not be reliable enough to predict pipe-seam failures.
Those efforts were driven in part by two deadly pipeline-seam accidents since 2007, experts say. One raised concerns that existing tests might not be reliable enough to predict pipe-seam failures.
To sew piping in a 90-degree corner, lay the piping on the edge of the material as usual. Then snip the tail of the material wrapped around the cording.
The lip of the braid extends into the seam allowance. The stitching line attaching the braid should be 1/4 inch from the cut edge. Before you get too far sewing on the piping, take a look at the ...
Regarding the seam-welded or seamless pipe issue, PG&E notes that the report “does note a discrepancy in PG&E’s records on the type of pipe installed at the San Bruno location.
PG&E has identified more than 500 trouble spots on those lines, along sections ranging from a few feet in length to more than a mile, spanning a combined 48 miles. The stretches have pipe-seam ...