JUSTIFICATION OF EXPENDITURE TO LINE
NEW AND DETERIORATED PIPELINES

The following information presented concerning the justification for installing SURE-LINE® HDPE LINERS within new, existing and internally corroded steel production lines is itemized below.

  • 1. SURE-LINE ® HDPE LINERS will increase the calculated burst pressure of an existing corroded steel pipe by at least 100% over the pin-hole damaged area that has suffered a loss of wall thickness within a specific area.
  • 2. Where general wall thickness has diminished throughout the entire pipeline structure, SURE-LINE ® HDPE LINERS will provide additional composite support equivalent to minimum estimated wall thickness and calculated burst pressure, excluding specific pin hole damage, of 133 % (1.33 x unsupported bare steel burst.).

EXAMPLE

 
I
II
III
  STEEL PIPE O.D. WITH EST.
NET WALL
CALCULATED BURST

COMPOSITE SURELINE® D APPROX. BURST
(COLII * 135%)

A.
8" .156" GRADE "B"
760 PSI 1011 PSI
B.
8" .188" GRADE "B"
920 PSI 1224 PSI
C.

8" .156" X-42

1140 PSI 1516 PSI
D.
8" .188" X-42
1370 PSI 1822 PSI
E.
10" .188" GRADE "B"
730 PSI 971 PSI
F.
10".188" X-42 "B"
1250 PSI 1663PSI
  NOTE:A above - Yeild calculated per D.O.T. formula
F=1st