The Polyplumb system is suitable for use in hot and cold water supply and both radiator and floor central heating systems. The polybutelene pipe provides flexibility & freedom when designing pipe layouts.
The system is suitable for use in working applications up to 12 bar / 20°C (6 bar / 90°C). Pipes are suitable for bending to a radius of 12 x diameter when unsupported or 8 x diameter when supported.
Connections and fittings are tested to BS 7291:
Class S for thermal cycling test, long term pressure tests, rapid pressure test and pull-out strength.
System malfunction temperature
Polyplumb pipes and fittings are tested to BS7291:
Parts 1 and 2, which incorporates a pressurised thermal cycling test and a test regime at temperatures of 114°C and 3·5 bar pressure for 1,000 cycles at a duration of 30 minutes per cycle.
See British Standards web site for further details.
The Polyplumb system is not suitable for the transportation of gases. Standard Polyplumb pipe is oxygen permeable and is suitable for all domestic water and heating installations. Polypipe recommends that corrosion inhibitors are introduced to, and maintained in, all heating systems, whether they use standard or barrier pipe. Due to the long pipe runs used in floor central heating systems we recommend barrier pipe is used throughout UFCH applications to minimise the potential for oxygen ingress into the system.
The polybutylene material used in Polyplumb pipes and fittings is WRC / WRAS approved. It is resistant to the build-up of scale. Short term chlorination for disinfection of supply pipe work and normal levels of chlorine in UK domestic water supplies will not have an adverse effect on Polyplumb. Polyplumb is not suitable, however, for systems that carry a high concentration of chlorine, eg supplies to swimming pools etc.
Polyplumb pipe and fittings should be protected from UV light. Standard decorating paints form adequate protection. Polyplumb pipe insulation forms adequate protection for external use. Polyplumb is delivered in light protective packaging.
It’s co-efficient of thermal expansion is 1.3 x 10-4 m/mºC. It accommodates expansion by its modulas of elasticity.
The Polyplumb system gives better performance than rigid pipe systems in terms of low noise transmission and low water hammer effect.
As Polyplumb pipe does not conduct electricity, installations generally require less equipotential bonding than metal systems. Both the IEE and the IoP give guidance on the earth bonding requirements of plastic pipe systems. Where Polyplumb breaks the continuity of existing metal pipe, which may be used for earthing or bonding, this continuity should be reinstated by affixing permanent earth clips and a section of earth cable between the ends of the copper pipe.
Polypipe believes there to be no side-effects from handling or using Polyplumb.
Polyplumb floor heating products, excluding manifolds and control products, are guaranteed for 50 years against defects in materials or manufacture from the date of purchase (exclusions apply).
Polyplumb systems require no maintenance, other than checks on inhibitor level in heating systems.