Berrys 2016 - page 13

Abuse Resistance
PLX has ductile
characteristics and
has exceptional
resistance to abrasion,
mechanical and
physical abuse.
Its strength and ductility will accommodate
occasional pressure surges of up to twice the pipes
pressure rating.
UV Resistance
Pigmented with Carbon Black,
PLX secondary contained
‘Pipe-In-Pipe’ systems, have
excellent resistance to UV light.
Even under the most severe
conditions the secondary pipe
will retain most of its mechanical and physical properties and
will wholly protect the primary pipe. The pressure rating and
30 year design life is unaffected by exposure to sunlight.
Chemical Resistance
Durapipe PLX has a highly visible bore that
ensures negligible permeation, low absorption
and dimensional stability whilst providing
excellent chemical resistance to the Volatile
Organic Compounds (VOCs) of fuels including
petrol, diesels, fuel oils and biofuels. PLX
systems are suitable for the distribution of DEF
(Diesel Exhaust Fluid) systems such as AdBlue.
With the growth in use of bio-diesel it’s important to protect
pipe contents from ‘waxing’ at low temperatures. This is
especially important in fuel systems that may be quiescent for
long periods e.g. generators for UPS systems.
Depending on the bio-diesel feedstock oil, ‘waxing’ can
begin to occur between temperatures of +16°C and -10°C.
Polyethylene is a good insulator and PLX ‘Pipe-In-Pipe’
systems provide short term protection. In exposed fuel systems
conveying bio-diesel the PLX pre-insulated ‘Pipe-In-Pipe’
system should be considered in conjunction with a fuel
re-circulation system.
As PLX is a unique system, by ensuring the primary pipe
is welded independently from the secondary pipe,
Trace Heating systems could also be applied.
Corrosion Resistance
Corrosion resistant, the bonded composite structure of PLX combines
the properties of polyethylene and the protective barrier layer. Both
are renowned for their resistance to chemical attack, and in service
will not rot, rust, pit or corrode, or support the growth of algae,
bacteria or fungi. Either buried or above ground, PLX systems are
maintenance free. The pipe’s smooth lined bore offers low friction and
minimum resistance to flow. Corrosion resistant transition fittings are
available in zinc plated mild steel and stainless steel.
Abrasion Resistance
Polyethylene has excellent abrasion resistance.
During installation, the abrasive particles of typical
soils and backfills do not reduce the design life or
pressure rating of the system. Note: In the unlikely
event of a notch or groove being cut into the
external surface by more than 10 per cent of the
wall thickness, the pipe section should be rejected.
Low Installed Life Costs
The ease of handling and speed of jointing of PLX
will generally result in the total installed cost being
lower than for threaded or welded metal systems.
Pipework installation can be completed in less
time than for metal systems. As the installation of
PLX is not classed as ‘hot works’ it can be safely
undertaken in most environments.
Environment and Conservation
The manufacture of thermoplastic pipework consumes less energy than the manufacture of equivalent traditional materials.
Furthermore, the extrusion and moulding processes are clean and do not produce harmful emissions. A further benefit is that
thermoplastic manufacturing scrap can be reprocessed and used for the manufacture of other, non-PLX products.
PLX pipe and fittings are lighter in weight than equivalent metal pipes and fittings and so less fuel is used to transport them.
PLX secondary contained fuel pipe systems protect the environment against the consequences of accidental losses.
Quality and Environment
Durapipe UK’s commitment to quality
is reflected by our operation of an
independently assessed quality management
system registered under BS EN ISO 9001.
We also operate an environmental
management system that has been
successfully assessed against the
BS EN ISO 14001 environmental
management standard.
Dimensions and Standards
PLX products are made in accordance with the following Standards:
EN14125, DIN 8074, 8075, OFTEC, EI, UL971v1, IPv1
Fittings EN14125, BS EN 1555, OFTEC, AREL (Transitions), EI, UL971v1
Threaded transition fittings conform to the nominal requirements of
BS 21/DIN 2999/ISO 7 specifications. Male and Female threads are
Flanged drillings conform to the nominal requirements of BS4504,
DIN2501 Table 10 and Table 16.
1...,3,4,5,6,7,8,9,10,11,12 14,15,16,17,18,19,20
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