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Pipes & Pipe Fittings
Comparison of FRP pipes with Di, ms epoxy coated, PVC and HDPE pipes
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Description
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FRP Pipes
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DI
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Epoxy Coated MS
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PVC
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HDPE
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Corrosion Resistance
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Good
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Moderated with internal molar Lining.
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External wrapping & Cathoclic Protection Required
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Poor against alkaline medium
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Good
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Maintenance
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No Maintenance Required
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Periodical Inspection required
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Periodical inspection required
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Repair is not possible
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Repair is not possible
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Design Life
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50 Years
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15-20 Years
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10-15 Years
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5-8 Years
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8-10 Years
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Friction Factor (Hazen Williams Co-efficient "C")
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150
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120
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120
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150
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150
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Thickness
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Optimized by Design
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Standard Dimensions
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Standard dimension LP to 16" (400) (above 16" designed based on yield strength)
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Standard Dimensions
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Standard Dimensions
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Specific Gravity
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1.8-1.9
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7.05
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7.85
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1.4-1.45
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0.95
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Weight
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Light in weight
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6 times higher than FRP
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3-4 times higher then FRP
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Weight is higher than FRP due to Higher thickness
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Weight is higher due to Higher Thickness
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Diameter
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Max. 13 ft (4m)
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Max. Ft (1.80m)
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No Limitation
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Max. 3 ft. (900mm)
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Max 4 ft. (1.2m)
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Tensile Strength
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Hoop tensile Strength 5500 pls
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Min. 60 000 psi
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Min. 55, 000 psi
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7250 psi
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5000 psi
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Modulus of Elasticity
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Hoop Tensile modu us 5.0 x 10" psi
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22.0x10" psi
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30.0x10" psi
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5.0x10" psi
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7.0 x 10" psi
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Surge Pressure
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Best to handle among all piping Materials
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Surge pressure high Protection device needed
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Surge pressure high Protection device needed
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Can not handle surge pressure very well
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Can not handle surge pressure very well
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Length
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Max. 40 ft. (12m)
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Max. 16 ft. 5(m)
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Limited to 20ft. 40 ft. (6-12m) due to weight
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Max. 40 ft. (12m)
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No limitation
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