| Calculation to determine use of " StrongBack Products " |
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| for repair or rehabilitation of pipelines : |
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| Enter information in yellow boxes - Results in red |
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| Enter the REMAINING wall thickness, inches |
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0.089 |
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| Enter the pipe Specified Minimum Yield Strength (SMYS), psi |
46,000 |
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| Enter the pipe OD, inches |
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48 |
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| Remaining capacity, psi ( line pressure for correct repair) |
123 |
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| Calculation for " StrongBack " layers: |
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| Enter system design pressure,PSI(or max work pressure x 1.5) |
2427 |
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| Barlows formula and StrongBack's ultimate tensile strength |
2304 |
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| will indicate the number of layers required for temporary repair / |
72.57 |
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| rehabilitation:( 8 layer min.up to 10"od/10 layer min.over 10"od ) |
73 |
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| Number of StrongBack rolls required. |
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| Enter roll width, 2 - 3 - 4 - 6 or 10 inches |
10 |
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| Enter length of repair in inches ( feet x 12 for inches ) |
10 |
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| Enter length of roll in inches ( feet x 12 for inches ) |
1080 |
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| Enter exactly the following formula: =sum(p1:pX) ,substitute the |
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| the value of "G14" ( number of layers ) for X and hit "enter" |
0 |
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| StrongBack rolls required: (round up to next whole roll or to |
14.76 |
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| minimise possible waste analyze the decimal portion of this number |
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| to establish the use of shorter roll equivalent to the decimal fraction ) |
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| GS-561G required: ( portion of or number of 2 gallon kits ) |
0.21 |
(of two gallons) |
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| equivalent to pint kits of GS561P |
1.7 |
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46.5 |
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88 |
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| Installation TIME per meter of pipe is |
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166.0 |
minutes, |
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166 |
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| that is equivalent to |
50.6 |
minutes per foot. |
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| ( These times are approximate and assume a crew of three qualified technicians for pipes 16" and |
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| larger, and a crew of two for pipes smaller than 16".) |
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| NOTE: These calculations are provided by The StrongBack Corporation |
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| to estimate the amount of product needed for a particular repair and are |
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| subject to verification by your Engineering Department. The StrongBack |
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| Corporation assumes no responsibility what so ever for the misuse or |
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| modification to this electronic page. |
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