PolyEXT Internal Tubing Linings
Technical Data & Specifications
Description: High Density Polyethylene
PolyEXT is a High Density Polyethylene (HDPE) liner, intruded into tubing. It is designed for use at elevated temperatures and pressures in production and injection tubing. It is a tough, flexible lining which will resist damage and cracking during handling. The relative low co-efficient of friction of the lining allows for increased hydraulic efficiency.
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Lining Properties
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Nominal Values
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Property
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ASTM Test Method
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SI Units
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English Units
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Density,
Natural
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D1505
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0.946 gm/cc
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--
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Density,
Black
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D1505
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0.955 gm/cc
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--
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Melt
Index (190°C/2.16 kg)
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D1238
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0.07 gm/10 min.
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--
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Flow Rate
(190°C/21.6 kg)
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D1238
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8.5 gm/10 min.
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--
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Tensile
Strength @ Ultimate
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D638
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34.5 MPa
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5000 psi
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Tensile
Strength @ Yield
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D638
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24.1 MPa
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3500 psi
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Ultimate
Elongation
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D638
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>800%
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>800%
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Flexural
Modulus
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D790
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938 MPa
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136,000 psi
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2% Secant
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Environmental
Stress Crack Resistance (ESCR)
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FO,
Condition C
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D1696
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>10,000 hrs.
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>10,000 hrs.
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PENT
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F1473
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>100 hrs.
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>100hrs.
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Brittleness Temperature
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D746
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<-117°F
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<-180°F
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Hardness,
Shore D
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D2240
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64
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64
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Vicat
Softening Temperature
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D1525
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124°C
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255°F
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Izod
impact Strength (Notched)
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D256
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0.37 KJ/m
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7ft lb/in
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Volume
Resistivity Coefficient
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D991
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>1015
ohm-cm
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--
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Thermal
Expansion Coefficient
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2xlO-4cm/cm/°C
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1.0xlO-4in/in/°F
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CELL CLASSIFICATION:
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D3350
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345464C
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Grade
PE36
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MATERIAL CLASSIFICATION:
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D1248
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Type
III
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Class
C
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Category 5
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PPI HYDROSTATIC DESIGN
BASIS (HDB)
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D2837
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11.0
MPa @23°C
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1,600psi
@73.4°F
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(As listed in PPI TR-4)
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5.5MPa@60°C
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800psi
@ 140°F
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PPI HYDROSTATIC DESIGN
STRESS (HDS)
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5.5MPa@23°C
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800 psi @ 73.4°F
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(As established by the Hydrostatic Stress
Board (HSB) of the Plastics Pipe Institute (PPI)
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* Nominal values are intended to be guides only, and
not as a specification limit.
