EN 16397-1:2014

Flexible couplings - Part 1: Performance requirements EN 16397-1:2014

Publication date:   Jan 21, 2015

General information

90.93 Standard confirmed   Nov 4, 2022

CEN

CEN/TC 165 Waste water engineering

European Norm

23.040.60   Flanges, couplings and joints

Buying

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Scope

This European Standard specifies the performance requirements for flexible couplings and adaptors and bushes for use with pipes and fittings in drain and sewer systems, usually operated under gravity and periodic hydraulic surcharge, both above and below ground inside or outside buildings and intended to connect pipes for:
- repair of damaged pipelines;
- connecting pipes of different materials and/or diameters;
- jointing short/cut lengths of pipe;
- jointing specific pipe systems;
- jointing post-inserted preformed junctions.
Typically a coupling consists of a moulded or extruded flexible sleeve with two clamping bands with or without a shear band. The clamping bands enable the sleeve to form a seal with the pipes to be jointed. The shear band gives resistance to shear forces. Connections may be made between pipes which cannot be satisfactorily jointed by a coupling alone, of dissimilar sizes or material, by using an appropriate bush or bushes with the coupling or by using an appropriate adaptor.

Life cycle

NOW

PUBLISHED
EN 16397-1:2014
90.93 Standard confirmed
Nov 4, 2022