ISO 14531-3:2010
Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 3: Fittings for mechanical jointing (including PE-X/metal transitions)

Standard No.

ISO 14531-3:2010

Release Date

2010

Published By

International Organization for Standardization (ISO)

Latest

ISO 14531-3:2010

Scope

This part of ISO 14531 specifies the physical properties and mechanical-performance requirements for full-end-load-resistant mechanical fittings for use in the connection of crosslinked polyethylene (PE-X) pipes conforming to ISO 14531-1 and in the construction of transition assemblies for joining PE-X pipes to metal pipes having plain spigot, screw thread, compression socket and flange terminations. In addition, it lays down dimensional requirements and specifies some general material properties (including chemical resistance) together with a classification scheme for PE-X fitting materials produced in the form of pipe. 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 bar1) 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-temperature basis of ISO 10838 fittings conforming to 5.6 in conjunction with PE-X pipes conforming to ISO 14531-1. The fitting manufacturer's technical file should also be consulted for relevant supporting information. 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.

ISO 14531-3:2010 Referenced Document

• ISO 10838-1:2000 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels - Part 1: Metal fittings for pipes of nominal outside diameter less than or equal to 63 mm
• ISO 10838-2:2000 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels - Part 2: Metal fittings for pipes of nominal outside diameter greater than 63 mm
• ISO 10838-3:2001 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels - Part 3: Thermoplastics fittings for pipes of nominal outside diameter less than or equal to 63 mm
• ISO 1167-1 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 1: General method
• ISO 1167-2 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces
• ISO 1167-3 Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 3: Preparation of components
• ISO 12162 Thermoplastics materials for pipes and fittings for pressure applications - Classification, designation and design coefficient
• ISO 13623 Petroleum and natural gas industries — Pipeline transportation systems — Amendment 1
• ISO 13951 Plastics piping systems - Test method for the resistance of plastic pipe/pipe or pipe/fitting assemblies to tensile loading*， 2015-02-01 Update
• ISO 13957 Plastics pipes and fittings - Polyethylene (PE) tapping tees - Test method for impact resistance
• ISO 14531-1 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 1: Pipes
• ISO 14531-2 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 2: Fittings for heat-fusion jointing
• ISO 14531-4:2006 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 4: System design and installation guidelines
• ISO 16010 Elastomeric seals — Material requirements for seals used in pipes and fittings carrying gaseous fuels and hydrocarbon fluids*， 2019-08-28 Update
• ISO 19899 Plastics piping systems - Polyolefin pipes and mechanical fitting assemblies - Test method for the resistance to end load (AREL test)
• ISO 3127 Thermoplastics pipes - Determination of resistance to external blows - Round-the-clock method
• ISO 3458 Plastics piping systems - Mechanical joints between fittings and pressure pipes - Test method for leaktightness under internal pressure*， 2015-04-01 Update
• ISO 4437 Buried polyethylene (PE) pipes for the supply of gaseous fuels - Metric series - Specifications
• ISO 7-1 Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation TECHNICAL CORRIGENDUM 1
• ISO 8085-3:2001 Polyethylene fittings for use with polyethylene pipes for the supply of gaseous fuels - Metric series; Specifications - Part 3: Electrofusion fittings
• ISO 9080 Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation*， 2012-10-01 Update

ISO 14531-3:2010 history

• 2010 ISO 14531-3:2010 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 3: Fittings for mechanical jointing (including PE-X/metal transitions)
• 2006 ISO 14531-3:2006 Plastics pipes and fittings - Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels - Metric series - Specifications - Part 3: Fittings for mechanical jointing (including PE-X/metal transitions)