SNZ - AS/NZS 2537.5
Mechanical jointing fittings for use with crosslinked polyethylene (PE-X) for pressure applications Part 5: Plastics pipes and fittings—Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels—Metric series—Specifications—Fittings for mechanical jointing (including PE-X/metal transitions)
|Publication Date:||13 April 2011|
This part of ISO 14531 specifies the physical properties and
This part of ISO 14531, when used in conjunction with the other parts of ISO 14531, provides the basis for the design, manufacture and installation of PE-X piping systems (PE-X pipes, PE-X fusion fittings and mechanical fittings) for the supply of category D and category E hydrocarbon-based fuels (see ISO 13623) at
a) maximum operating pressures (MOPs) up to and including 16 bar 1) and
b) a maximum operating temperature of +60 °C and
c) a minimum operating temperature of
1) −50 °C
2) −35 °C
3) −20 °C.
Conformity to this part of ISO 14531-3 of mechanical fittings produced in accordance with ISO 10838-1, ISO 10838-2 or ISO 10838-3 may be claimed subject to the satisfactory conclusion of the tests listed in 5.6 and an end-use restriction on operating temperatures to the temperature range −20 °C to +40 °C.
NOTE It is recognized that mechanical fittings conforming to ISO
10838-1, ISO 10838-2 or ISO 10838-3 are limited to a maximum
operating temperature of 40 °C. Provision is made in ISO 14531-4
for the use on a restricted-temperatu
For installation purposes, this part of ISO 14531 provides for the jointing of mechanical fittings to PE-X pipes within the temperature range −5 °C to +40 °C.
1) 1 bar = 105 N/m2 = 100 kPa.