PE100 pipe is manufactured with a highly reflective white coating on the outside. This coating is extruded at the same time as the main pipe (co-extruded), forming an integral part of the pipe. This pipe is the ultimate solution for above ground applications including temporary water supply. which is a key part to reducing the effect of sunlight on the pipeline.

By the use of a highly reflective white material on the external skin, it could reduce the absorption of heat. The white material is extruded concurrently with the black pipe wall, forming an integral part of the pipe. Formulation of the white compound with HALS(Hindered Amine Light Stabilisers) and titanium dioxide increases the longevity of UV resistance in the outer layer.

Above ground polyethylene pipes will be absorb and disperse thermal energy via number mechanisms. Incoming solar radiation heats the pipes whilst re radiation, convection and conduction to the fluid conveyed will act to cool the pipes, Variation in the coming solar radiation intensity with time of day, could cover, latitude, altitude, season and pipeline orientation combine to be major determinants of the temperature, Wind velocity, ambient temperature, flow rate and nature of the conveyed fluid are also variables acting to influence pipe wall temperature.

Co-extruded pipe technology has been around for years but had typically been more expensive than standard black poly pipe, Bingo has invested in new state of the art extrusion machinery that can produce to-extruded PE pipe very efficiently. This means that the cost of co-extruded pipes are not much more than standard black HDPE pipes.

Extensive testing has demonstrated that solar radiation has substantial and predictably less effect on co-extruded white pipes as opposed to conventional black polyethylene pipe under the same conditions.

In all respects, co-extruded white pipes matches or exceeds the performance requirements of ISO4427, EN12201 pipes for pressure applications.

By limiting the surface temperature of above ground polyethylene pipelines, a thinner walled pipe can be used then would otherwise be required in a given application.

Much of this complexity can be reduced by considering that any pipes design much accommodate the most arduous environmental conditions to be encountered. For polyethylene pipelines, this requires the estimation of long term temperature conditions in the pipe, especially during summer.

Test of conventional black polyethylene pipes and the white co- extruded HDPE by an independent laboratory had confirmed lower radiation absorption, resulting in substantial reductions in temperature with this material.

Absorptance, the ratio of the amount of radiation absorbed by a surface to the amount of radiation incident upon it.

Co-extruded white PE pipes maintain a lower operating temperature to reduce the thermal rerating requirement of above ground pipelines.

White HDPE pipe – sizes below can be made in SDR7.4, SDR9, SDR11, SDR13.6, SDR17, SDR21, SDR26, SDR33, SDR41