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PE Pipes - Temperature and Pressure Ratings

PolyEthylene pipe - temperature and maximum operating pressure

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The maximum operating pressure of a PEH pipe depends on the temperature of fluid and pipe.

PN ratings are based on temperature 20oC.

Temperature
(oC)

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Maximum Operating Pressure (bar)
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PN 6PN 10PN 16
20 6.0 10.0 16.0
30 3.2 8.0 13.0
40 2.0 6.0 11.0
50 1.6 4.0 8.0
60 1.0 3.2 6.0

Example - Cold and Hot water Supply

The pressure in a water supply system to an area is 4 bar. The cold water temperature will never exceed 20oC and the hot water distributed within the area with PEH pipes will never exceed temperature 50oC.

From the table above pipes with PN 6 will do for the cold water. For the hot water PEH pipes PN 16  should be selected.

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Topics

Unit Converters

Temperature

oC
oF


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Length

m
km
in
ft
yards
miles
naut miles


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Area

m2
km2
in2
ft2
miles2
acres


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Volume

m3
liters
in3
ft3
us gal


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Weight

kgf
N
lbf


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Velocity

m/s
km/h
ft/min
ft/s
mph
knots


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Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


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Flow

m3/s
m3/h
US gpm
cfm


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