BS EN 448:2015 specifies requirements and test methods for fittings of prefabricated thermally insulated pipe-in-pipe assemblies comprising a steel service fitting from DN 20 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene for use in directly buried hot water networks with preinsulated pipe assemblies in accordance with EN 253.

This European Standard covers the following fittings: bend, tee, reducer, single use compensator and anchor.

This European Standard applies only to factory made prefabricated fitting assemblies and single use compensators for continuous operation with hot water at various temperatures in accordance with EN 253.

This European Standard applies to fitting assemblies with a minimum design pressure of 16 bar (overpressure) complying with EN 13941.

This European Standard does not include calculation rules for loads and stresses. The design and installation rules, for the system, are given in EN 13941.


Cross References:
EN 253:2009+A2:2015
EN 489:2009
EN 10216-2
EN 10217-1
EN 10217-2
EN 10217-5
EN 10253-2
EN 12814-1
EN 13018
EN 13941
EN 14419:2009
EN 14870-1
ISO 15590-1:2009
EN ISO 3452-1
ISO 3452-1
EN ISO 5579
ISO 5579
EN ISO 5817
ISO 5817
EN ISO 8501-1
ISO 8501-1
EN ISO 9606-1
ISO 9606-1
EN ISO 9692-1:2013
ISO 9692-1:2013
EN ISO 9934-1
ISO 9934-1
EN ISO 10675-1
ISO 10675-1
EN ISO 11666
ISO 11666
EN ISO 14732
ISO 14732
EN ISO 15607
ISO 15607
EN ISO 16810
ISO 16810
EN ISO 17636-1
ISO 17636-1
EN ISO 17636-2
ISO 17636-2
EN ISO 17637
ISO 17637
EN ISO 17638
ISO 17638
EN ISO 17640
ISO 17640
EN ISO 23277
ISO 23277
EN ISO 23278
ISO 23278
EN 488
EN ISO 9001
ISO 9001
EN ISO 2553
ISO 2553
ISO 2859-2


All current amendments available at time of purchase are included with the purchase of this document.