Description
Speedfit Barrier Pipe 15mm x 3m
Speedpex Barrier Pipe
15mm x 3m
The pipe has an inner barrier to stop the ingress of the atmosphere.
Suitable for Central Heating Systems.
Speedfit barrier pipe is manufactured to BS 7291, Parts 1,2 and 3 Class S and is Kitmarked.
It is made up of 5 layers, the centre of which is a blue coloured oxygen barrier which prevents the ingess of air into the system, thereby reducing the effect of corrosion on metal components.
Beacuse of its low thermal conductivity,when carrying hot water, Speedfit Pipe is cooler and therefore safer to touch. Relatively low heat loss through radiation means that a system retains it's heat longer and delivers hot water more quickly and with less wastage then a metal system.
Guarantee
As a result of long term test programmes and rigorous quality standards John Guest Speedfit Limited offer a 25 year guarantee against defects in materials or manufacturing of PEM, PSE and SFM range plumbing fittings and Speedfit Barrier Pipe manufactured by John Guest. John Guest Plumbing and Heating Products are for use with normal UK domestic plumbing and heating systems.
Connection to Boilers
Please note that Speedfit pipe should NEVER be connected directly to a boiler. Although most modern boilers have a high limit thermostat, residual heat can be conducted by the heat exchanger. Therefore, Speedfit recommend a minimum of 1 metre from the boiler casing should be run in copper pipe unless otherwise stated in the boilwer manufacturers installation literature. Speedfit do not recommend the use of plastic pipe on the main supply between a water meter and a combi boiler if an expansion vessel is not fitted. Speedfit products should not be fitted to a sealed system oil boiler, a back fired boiler or other uncontrolled heat source.
The pipe is availble in coils and straight lengths. Pipe markings are spaced to aid the making of a good connection when using the Superseal Pipe Insert.
Pipe Bending
Gentle bends can be made with pipe clips on either side of the curve, positioned to maintain the bend radius. Tighter bends can be achieved by using the cold formiing bends. Internal Bending springs are available in 10mm to 22mm sizes. It is also possible to bend Speedfit Pipe using a standard pipe bender. The pipe should not be heated with a blowlamp or hot air gun.
Pipework Insulation
The insulation requirements for Speedfit pipe are the same as those for copper and should comply with BS6700 and BS5422.
Concealed Pipework
The flexibility of Speedfit pipe gives it the ability to be threaded through concealed or inaccessible spaces without disruption to surrounding structures, making major savings in installation time. Pipework can be "cabled" through drilled holes in joists and rafters. Therefore, pipework can be isntalled after floorboards have been laid, working below the floor before the ceiling is installed. Rigid pipe such as copper, can only be fed under floormin short lengths. HOwever, Speedfit pipe, being flexible, can run from one fitting to another without having to install a connector in between. Speedfit needs no jointing materials, elinating the risk of fire from the use of blowlamp, solder and flux.
Exposed pipework
On long exposed runs of pipework, the expansion of Speedfit pipe when warm (1% on length between 20 and 82 degrees centigrade), can cause it to sag between clip fixings. When this is undesirable, pipework can be boxed in or replaced with rigid copper pipe. Speedfit pipe and fittings are stabilised to withstand limited exposure to ultra-violet radiation in sunlight but are not designed for permanent direct exposure. Pipe and fittings should also be lagged to prevent frost damage.
Acoustic
properly installed, Speedfit pipes are virtually silent in operation and do not resonate; they absorb the acoustic vibrations and pressure waves.
