BS EN 1555-3:2010 Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE). Fittings
BS EN 1555-3 specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings for piping systems in the field of the supply of gaseous fuels. It also specifies test parameters.
In conjunction with Parts 1, 2, 4 and 5 of BS EN 1555, it is applicable to PE fittings, their joints and to joints with components of PE and other materials intended to be used under the following conditions:
a) A maximum operating pressure, MOP, up to and including 10 bar;
b) An operating temperature of 20 °C as reference temperature.
BS EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours and additives.
BS EN 1555-3 is applicable for fittings of the following types:
c) electrofusion socket fittings;
d) electrofusion saddle fittings;
e) spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);
f) mechanical fittings.
The fittings can be in the form of couplers, equal and reduced tees, reducers, bends or caps.
Contents of BS EN 1555-3:
2 Normative references
3 Terms and definitions, symbols and abbreviations
5 General characteristics
6 Geometrical characteristics
7 Mechanical characteristics
8 Physical characteristics
9 Performance requirements
11 Delivery conditions
Annex A (informative) Examples of typical terminal connection for electrofusion fittings
Annex B (normative) Short-term pressure test method
Annex C (normative) Tensile test for fitting/pipe assemblies