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Introduction
C o n c e p t P i p i n g S y s t e m s Industries
(formally Gulf Dura Industries) is committed
to continuously develop & maintain
the manufacture & supply of world class
construction materials, offering technology,
innovation, quality, price competitiveness,
appreciated clients worldwide.
Please take a moment to look at our other high
quality product lines:
- , PPr water supply systems.
- , PVC Drainage Systems.
- , PP Silent Drainage Systems.
- , Electrical Installation Systems.
Cross - Linked Polyethylene (PE-X)
which stands for cross-linked(X) Polyethylene (PE),
results from chemically adjoining polyethylene
molecules in order to improve their properties,
especially at high temperatures. This, results in a
structure that stays rigid when high temperature
is applied, thus raising the thermal stability of
the material under load. Cross-linking makes
PEX a “thermoset” polymer, which gives it
long-term stability, which greatly increases
the environmental stress crack resistance and
the resistance to slow crack growth due to
deterioration of the material under continuous
temperature use.
Mechanical Characteristics of PEX.
The technical suitability of PEX for water
delivery systems has been proven for decades.
The conceptPEX® pipe system is designed
for continuous temperatures of 0 °C to 70 °C,
short-term peak temperatures of up to 100 °C
and a service life of min. 50 years.
The cross-linking raises the thermal stability of
the material under load. Thus, the resistance
to environmental stress cracking, creep, and
slow crack growth are greatly improved over
polyethylene.
PEX pipe is approved for potable hot and
cold water plumbing systems and hot water
(hydronic) heating systems in all model plumbing
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Diagram 1.1 Temperature and pressure chart for
conceptPEX® pipes.
Resistance to Temperature The maximum continuous application
temperature of conceptPEX®
The permanent operating pressure is 10 bars
application. Although high temperature
resistance of conceptPEX® piping system makes
it particularly suitable for hot and cold interior
plumbing applications, it also makes an excellent
underground water service piping.be sustained
for a maximum of 100 hours per 50 years.
Physical & Mechanical Properties
ParameterTypical
Value Unit
Test
Method
Density at
23°C0.949 g/cm3 ASTM D 792
MFI,
190°C/2.16 Kg
/5 Kg
0.60
2.4g/10’ ISO 1133
Mechanical
Properties:
Tensile
Strength
Elongation at
Break
> 25
> 400
MPa
%ASTM D 638
Vicat
Softening
Temperature
127 °CASTM D
1525
Gel Content > 65 % EN 579
at 23°C1.8 J/(g °K) ISO 11357-4
of Linear
Expansion at
20°C
1.6 x
10-41/°C ASTM D 696
Thermal
Conductivity
at 23°C
0.48 ±
0.004
W.m-
1.K-1
Above values are typical averages obtained from 18 x 2 mm mono layer pipe specimens which are extruded. These pipe specimens are
and mechanical codes across Europe, the U.S.
Canada, and virtually the rest of the world. PEX
piping systems are durable, provide security for
safe drinking water, and use reliable connections
Table(1-1), Permissible Working Temperature &
Pressure.
Working
Temperature
Working
PressureService life
PN
12.5
PN
16
PN
20
Up to 60°C 12.5 16 20 50 years
From 60°C up to
80°C8 10 13 50 years
From 80°C up to
95°C8 10 13 10 years
Safety factor of 1.3 is taken into account.
Moreover, conceptPEX® Pipe shows unique
temperature resistance at elevated temperatures
and for long service periods and offers a reliable
piping system even in the wide application
ranges.
Resistance to PressureAt room temperature, cross linking greatly
improves the resistance of conceptPEX® pipes to
pressure, reducing tendency to creep. At higher
temperatures, this is achieved by reducing
intermolecular space, and therefore density,
required for DIN 16892 standards. To meet the
heating pipes, a minimum density of 0.945 to
0.950 is required.
The following diagram shows the service life
expectancy which depends on the installed
system pressure and pressure changes. Under
nominal circumstances, however, the service life
expectancy of the pipes is more than 50 years.
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application and included in all of the major model plumbing codes.
UV ResistanceconceptPEX® piping system is designed for indoor and buried applications only and is not recommended for outdoor above ground use. Short indirect exposure to sunlight not to exceed 30 – 45 days are however, permissible when storing conceptPEX®
the pipes, if stored outside, be shielded from direct sunlight.
Like most plastics, the long-term performance of PEX will be affected by UV radiation from sunlight. Although most PEX pipes have some UV resistance, PEX pipes should not be stored outdoors where they are exposed to the sun. Precautions must be taken once the pipe is removed from the original container.
In most applications, conceptPEX® piping system is not normally installed where subjected to UV-radiation. If exposure to UV rays is unavoidable, then the PEX pipes should be buried in the soil or protective UV rays insulation shielding should be installed. Indirect (diffused) and
preferred) or approved pipe insulation.
conceptPEX®
with the external packaging upon delivery to allow time for storage, transport and installation for a period of up to 6 months in exposed areas. The protective package should not be removed until installation is commenced.
DurabilityBased on extensive testing and material performance over the span of more than 30 years, PEX piping has proven to be a durable material that does not suffer from some of the historical problems associated with metallic piping, such as
mineral build-up, and water velocity wear. PEX piping will typically expand if the system is allowed to freeze, and return to its original size when the water thaws.
Corrosion Resistant Brass FittingsBrass components have been widely used in the water industry. When supply of potable water is required, however, and in certain combinations of chloride concentrations in an acidic medium, corrosion of the alloy will occur and is due to the loss of a basic alloying element. To counter this
approved by German Water authority DVGW have proven to be effective in resisting this corrosion. These alloys are unique through combining a range of alloying elements including high copper content and small traces of other alloys, and subsequently post processing their microstructure of the alloy to chemically resist the attack of the medium and prevent the brass from corrosion. All conceptPEX®
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cured by immersion in 95°C hot water for 6 hours.
Hygienic PropertiesFor the healthy and safe delivery of potable
water, the network system used must be free
from any in
processes used that will be in contact with the
water, and there
Fire Resistance:conceptPEX® pipes do not omit toxic gases in
dioxin or other lethal or harmful gases such as
hydrogen chloride.
Fire protection guidelines are set in accordance
to national regulations. conceptPEX® materials
Chemical Resistance:Due to the nature of polyethylene, conceptPEX®
pipes are highly chemical resistant at a wide
range of temperatures and pressures. The basic
cross linked structure physically is resistant to the
attack of aggressive chemicals. The material is
thus rendered more resistant to permeation and
softening by these chemicals.
Installation:The installation of PEX pipe is generally easier than
rigid pipe. The pipe is lightweight compared to
steel or copper pipes, making it easy to transport
and safe to handle before and during installation,
and as conceptPEX® pipes are produced in
various length coil installation requires fewer
chemical, or solder joining is required, saving
times and effort.
*Warranty: As a statement to conceptPEX® quality standards,
the conceptPEX® pipes carry a 10 year warranty
for any manufacturing faults in all pipes.
Quality Assurance… Our MandateconceptPEX® was established with the mission
of providing the highest levels of quality
products to its clients. conceptPEX® pipes are
produced according to numerous standards
and regulations.
Standards and RegulationsconceptPEX® pipes are produced according to
DIN 16892 and DIN 16893, and with Factory Quality
Control Department and independent third
party testing agencies conduct routine quality
control and quality assurance evaluations to
insure the product meets International Standards
and hygienic requirements. Compliance with
the standards ensures safety and quality for the
end user.
conceptPEX® products are made under
strict control using the following standards &
regulations:
* This warranty covers material or manufacturing defects for products supplied by Concept Piping Systems Industries. This warranty does not cover improper installations in contradiction
to instructions or recommendations outlined in this catalogue or circulated by Concept Piping Systems Industries. Concept Piping Systems’ reserves the right to inspect the site
installation through its authorized personnel, within one week from the date of reported written complaint. Failure to comply with these conditions, will automatically void this warranty.
DIN 16892
DIN 16893
BS EN 1055/
ISO13479 /
DIN 1988
DIN 16928
DIN 4140
BS 6920
KTW recom
General requirements & testing
(PE-X)
Dimensions (PE-X)
propagation.
DVGW Code of Practice.
(Drinking water supply systems;
materials, components,
appliances, design & installation)
connection.
Insulation of service installations.
safety management system.
Suitability of non-metallic
products for use in contact with
water intended for
human consumption with regard
to their effect on the quality of
the water.
German Department of Public
are used in the sense of the
for drinking water applications.
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conceptPEX® Monolayer piping system
conceptPEX® Monolayer PEX Pipe PN 12.5/SDR 11
Code Size D (mm)Coil Length
(m)
20 1
20 N/A
25 1
25 1
32 1
conceptPEX® Monolayer PEX Pipe PN 16/SDR 9
Code Size D (mm)Coil Length
(m)
16 1
16 1
conceptPEX® Monolayer PEX Pipe PN 20/SDR 7.4
Code Size D (mm)Coil Length
(m)
16 1
16 N/A
20 1
20 N/A
25 1
25 1
32 N/A
conceptPEX® PEX Corrugated Protective Sleeve
Code
Recommended
for Pex Pipe Size
(mm)
Internal
Diameter
(mm)
Outer
Diameter
(mm)
Coil Length
(m)
16 - 20 21 25 1
25 26 30 1
32 33 37 1
16 - 20 21 25 1
25 26 30 1
32 33 37 1
Product Range
Note:
All SDR11 9 Pex pipe.
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Code Size (mm)
X16-MAD1/2-S7.4 16 x 1/2”
X16-MAD1/2-S11 16 x 1/2”
Male Adapter
Note:
All SDR11 9 Pex pipe.
Female Elbow (Long neck) with
Plastic Box (Blue-Red)
Code Size (mm)
X16-FEBN1/2-S7.4/BL 16 x 1/2”
X16-FEBN1/2-S11/BL 16 x 1/2”
16 x 1/2”
16 x 1/2”
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cut is made.
Box.
according to the pipe size. Put the nut on the pipe. Make sure the female side of the nut and the pipe end are on the same side. Slide the compression crimp ring over the pipe.
tubing. To prevent ring from moving, squeeze the ring slightly with spanner.
that each crimped ring be checked with the appropriate gauge.
PEX Piping Supports
Supports that damage the pipes should not be used. Support should allow free pipe movement.
for use with plastic pipes can be used, but should be avoided. In any case, all supports should be inspected for sharp edges before use to ensure that they do not damage the pipe.
conceptPEX® pipe allows easy and quick installation of sanitary and heating systems.When installing it is necessary to follow the simple instructions referring to the connections of the pipes with the proper adaptors, bending of the pipes, protection from sun rays, and possible damages of the pipe or the protective sleeve by cracking.
connections for the taps must be done using adaptors in the correct size.
it is necessary to cut the pipe precisely and perpendicularly to its axis by the proper cutter.
the bends have a minimum radius eight times more than the outside diameter of the pipe.
other heating sources with high temperatures, as this will cause the pipes to melt.
it is recommended that the system be pressure tested to ensure there are no leakages.
protected by covering them with concrete, to avoid cracking the pipes and movement of the installation.
protected against ultra violet rays, capable of altering the chemical-physical features.
protective sleeve, it must be covered by a
to expansion of the pipe.
article must be used.
It is widely recommended that in order to established a consistent and leak free joint, it is necessary to follow conceptPEX® jointing
prepare the pipe. Make sure that a straight
Dimensions of ConceptPEX pipes
Outter
diameter
(mm)
SDR 7.4 - PN 20 - 20 Bar @ 95°c SDR 9 - PN 16 - 16 Bar @ 95°c SDR 11-PN 12.5-12.5 Bar @ 95°c
Min Max Min Max Min Max
16 2.2 2.7 1.8 2.2 1.5 1.9
20 2.8 3.3 2.3 2.8 1.9 2.3
25 3.5 4.1 2.8 3.3 2.3 2.8
32 4.4 5.1 3.6 4.2 2.9 3.4
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by the following chart. The chart represents
indicate life of the piping system, depending on
created in the pipe.
Due to smooth pipe surface, conceptPEX® pipes
to the metallic pipes. Moreover, no chemical
reaction takes place between the pipe and
calcium and magnesium carbonates in the
water and no reduction in cross section occurs,
thus giving constant pressure losses in long term
use.
Pressure Loss Diagram for conceptPEX®
Pressure Loss Diagram for conceptPEX®
pipes @50
Pressure Loss Diagram for conceptPEX®
pipes @ 80
Types of Manifold Connection NetworksStandard Direct Connection
Advantage:
appliances.
Disadvantages:
1. More piping quantity and space is required.
Distribution In-Series
Advantages:1. Less piping required.
2. Fast Installation.
Disadvantages:1. Effect on one appliance on the next.
2. Maintenance requires complete shut-off of
circuit.
Handling and Storing ConceptPEX® Piping System
PEX® pipes should be stored well
covered in order to keep the pipes clean
and avoid exposure to sunlight. Consult
conceptPEX® for recommended limits for
outside storage.
PEX® pipes should be stored in a
way to protect the system from mechanical
damage (slitting, puncturing, etc.)
PEX® pipes over
rough terrain, rocks, or any surface that can
cut, puncture, or damage the pipes wall.
PEX® pipes.
Inspect all pipes before and after installation.
Cut out and replace all damaged sections.
Pressure LossThe pressure losses in PEX pipes can be assessed