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Thermal Properties
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| The reduction in basic strength with the rise in temperature is less as compared to other plastic pipes. Hence, Jindal piping system gives superior service at elevated temperatures up to 90 deg C. as compared to other conventional plastic pipes.
Thermal Expansion of Jindal PE-AL-PE pipe Chennai, India
Jindal MLC has a low coefficient of linear expansion, similar to copper tubing, and is far superior to alternate plastic pipe (expansion/ contraction rate about 10% of plastic pipe). This eliminates the need of installation" offsets" and the concern about abrading pipe due to constant movement as a result of temperature changes. Straight runs are always attainable with Jindal multilayer composite pipe. Coefficient of Thermal Expansion for Jindal PE-AL-PE Pipe is: 25 x 10-6/0 K. Low expansion coefficient is due to tie layer which eliminates the differential expansion of plastic and metal.
| Temperature Difference
| Pipe Length | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | | 1 | 0,25 | 0,50 | 0,75 | 1,00 | 1,25 | 1,50 | 1,75 | 2,00 | | 2 | 0,50 | 1,00 | 1,50 | 2,00 | 2,50 | 3,00 | 3,50 | 4,00 | | 3 | 0,75 | 1,50 | 2,25 | 3,00 | 3,75 | 4,50 | 5,25 | 6,00 | | 4 | 1,00 | 2,00 | 3,00 | 4,00 | 5,00 | 6,00 | 7,00 | 8,00 | | 5 | 1,25 | 2,50 | 3,75 | 5,00 | 6,25 | 7,50 | 8,75 | 10,00 | | 6 | 1,50 | 3,00 | 4,50 | 6,00 | 7,50 | 9,00 | 10,50 | 12,00 | | 7 | 1,75 | 3,50 | 5,25 | 7,00 | 8,75 | 10,50 | 12,25 | 14,00 | | 8 | 2,00 | 4,00 | 6,00 | 8,00 | 10,00 | 12,00 | 14,00 | 16,00 | | 9 | 2,25 | 4,50 | 6,75 | 9,00 | 11,25 | 13,50 | 15,75 | 18,00 | | 10 | 2,50 | 5,00 | 7,50 | 10,00 | 12,50 | 15,50 | 17,50 | 20,00 |
Comparison of Coefficient of Expansion
| Piping Material | Coefficient of Expansion | Rating | | G.I Pipe | Low | 2 | | Copper Pipe | Low | 2 | | PVC Pipe | High | 1 | | PE Pipe | Very High | 0 | | Composite Pipe | Low | 2 |
Resistance to Freezing
In plumbing and Water supply applications Jindal MLC Pipes can withstand multiple cycles of freezing and thawing while under pressure without bursting uptoc-40QC Temperature. Thawing can be done using a hot air blowgun, hot water injection, and electric blanket or heating cable method. An open flame torch or electric current should not be used to thaw the pipe.
Thermal Insulation in Jindal Pipes Chennai, India
Jindal PE-AL-PE pipe is having Thermal conductivity of 0.43 Watt/mk. Jindal composite pipes provide an increased resistance to the onset of condensation or pipe sweating in a plumbing application. In case of hot water piping the insulation requirement is only 50% of the same required for conventional metal pipes.
Thermal Strength
JINDAL Composite Pipes are having pressure rating of 15.0 Kg/Cm^2 at 23O C. and 11.0 Kg/Cm^2 at 60O C. JINDAL Composite piping system can safely be used for 6 Kg/Cm^2 pressure at 80O C. working temperature. Short term excursions to 95O C. will not affect the overall performance. Design life span for JINDAL Composite Piping System is in excess of 50 years.
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