Folder Hexa Eng

Hexa Generation

Innovation continues...

COES S.p.A.Via Genova, 13 - 20096 Pioltello (Mi) - ItalyTel. +39 02 92136.1 - Fax +39 02 9269529

www.coes.it

Strength, durability and extensive capacity:the features of the Coestherm® Hexa® pipes generation.

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210x297 FolderHEXA_ENG 6-11-2007 12:01 Pagina 16

The Coes Group has developed an important innova-tion on the PP random segment for carrying water inpressurised systems.

The New Generation of Coestherm Hexa multilayer pipes made of PP-RCT (PolypropyleneRandom “Cristalline, Toughened andTemperature Resistant”) is the result of yearsof research into raw materials and produc-tion processes, summarising all the advan-tages of polymeric materials and metalalloys in a single pipe.

Coestherm® Hexa® Multilayer Pipe:• Has an increased capacity.

The finer thickness of the pipe enablesa 20% increase in fluid capacity.

• It is stronger and more reliable. The decision to develop a pipe madeup of 3 layers of plastic ensuresincreased strength and durability. Coestherm® Hexa® Multilayer Pipe isguaranteed for 50 years at an opera-ting temperature of 70 C° and pressureof 10 bar.

• It’s easier to install. The finer thickness ofthe pipe enables a considerable reductionin weight. Moreover, thanks to the outerlayer of PP random, it is perfectly compatiblefor joining with the fittings of the Coestherm®

range. Reduced linear dilatation enables a reduction in the use of fastening points.

The Coestherm® Hexa® Multilayer Pipe range of pipes isavailable in PN 20 in diameters from 16 to 200 mm and is particularly suitable for diameters over 40 mm.

50

30

Years’ guaranteed duration!

Pipe in 3 layers.

Innovative rawmaterial PP-RCT

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Total absence of glass fibres.To guarantee

extreme strength.

100% recyclable

The constant commitment of Coes in technological innovation

Coestherm®

Hexa®

Multilayer Pipe

Coestherm® Hexa® Multilayer Pipe… innovation continues…

2020% increased capacity

compared with traditionalPP-R pipes.


The crystalline structureof PP-RCT is much finer than that of traditional PP-R.

It is certified as suitable for drinking

Features of PP-RCT

Raw material and innovationWhy choose PP-RCT

Monoklin

Hexagonal

PP-R

PP-RCT

Coes, having always paid attention to the system-related needs of designers, buil-ders and fitters on the international markets, has decided to invest in technologicalinnovation in raw materials to meet the needs of strength and durability of installa-tions, while guaranteeing savings on installation costs, thanks to the increased capa-city of the pipes and less dilatation.

The raw material used to make Coestherm® Hexa® Multilayer Pipe is certi-fied as suitable for drinking, a guarantee which is necessary for safety in thedomestic environment (contact with eyes, use for food-related purposes).

Unlike products treated with mineral fibres, the Coestherm® Hexa®

Multilayer Pipe is completely recyclable for the original destination of use.This offers further confirmation of the eco-compatible choice of Coes.

Alfa - monocline crystalline structure

Beta - hexagonal crystalline structure

INNER LAYER light green PP-RCT

• smooth surface, with lowloss of load

• resistance to the chemicalaggression of water

MIDDLE LAYERneutral coloured PP-RCT

base compound

• high resistance to pressure and mechanical stress

OUTER LAYERdark green PP-R

• total compatibility with welded joints of the Coestherm®range

• high resistance to thermal ageing

• Greater strength

• Greater durability

• Greater capacity

100% recyclable

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The hexagonal crystalline structure of Coestherm® Hexa® Multilayer Pipe enablesconsiderable mechanical resistance even at high temperatures.

Hexagonal structure of the Polymer


Maximum strength!To check the strength of the Coestherm® Hexa® Multilayer Pipe, a calculation programmewas used to simulate the stress to which the pipe is subjected in order to determine the optimal thicknesses.

(yellow = max. value; blue = min. value)

The stress factor is distributed in the inner layer of the pipe (

yellow), determining a strength index of 8,

the result of the ratio between themaximum resistance of 25 MPa

and the charge of 3.2 MPa

(1) The simulation of the fiberglass pipe is based on a laboratory product and the values refer to publictechnical-commercial datasheets on PP-R charged with fiberglass.

The stress factor is concentrated in the middle layer of the pipe

(yellow), determining a strength index of 5,

the result of the ratio between themaximum resistance of 50 MPa(1)

and the charge of 10 MPa

PRESSURISED TO 10 BAR,TEMPERATURE OF 70°C,MAXIMUM TENSIONS OF APPROXIMATELY 1.1 MPa*

PRESSURISED TO 10 BAR,TEMPERATURE OF 70°C,MAXIMUM TENSIONS OF

APPROXIMATELY 3.2 MPa*

FIBERGLASS PIPECOESTHERM® HEXA®

MULTILAYER PIPE

Charpy test

EVEN AT 0°C THE COESTHERM® HEXA®

MULTILAYER PIPE SHOWS

EXCEPTIONAL RESISTANCE!

The Charpy test measures the resistance of thematerial, or the capacity to absorb shock energy. The greater the quantity of energy absorbed,expressed in Joules, the greater the resistance toshock. In this way, it is possible to test the strength of the pipe, even at low temperatures.

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The fiberglass pipe is subject to greater risk ofbreakage, which, even inthe installation phase,might not be immediatelyvisible.

26°C 0°C

Results of the Charpy testComparison between the Coestherm® Hexa® Multilayer Pipe and Fiberglass pipe.

Coestherm® Hexa® Multilayer Pipe

Fiberglass pipe

*1 MPa = 10 bar

Joul

e/m

m^

2


Unbeatable durability!The Coestherm® Hexa® Multilayer Pipe has been subjected to “water in water” testingto measure long-term Resistance to Pressure, in compliance with ISO 9080.When filled with water and subjected to pressure, the pipe is immersed in a tank atdifferent temperatures.

COESTHERM® HEXA® MULTILAYER PIPE LASTS 50 YEARS,

AT A TEMPERATURE OF 70°C!

Results of the water in water test

+20% greater capacityThe Coestherm® Hexa® Multilayer Pipe enables the 20% reduction of the thickness ofthe walls, enabling the installation of pipes with a smaller diameter with the samecapacity compared with the traditional PP-R pipe.

Economic advantage: In the cost of the pipes Pos for installing smaller diameters (up to 30% financial savings).

About 15% less pipe dilatation

Coestherm® pipe in PP-R SDR 6

Coestherm® Hexa®

Multilayer Pipe in PP-RCT SDR 7.4

(same outer diameter)

Coestherm® Hexa®

Multilayer Pipe in PP-RCT SDR 7.4(smaller outer diameter)

50years

Free

Black = PP-R

Orange = PP-RCT

Tens

ion

(MPa

)

Hours

1 5 10 50 years


The outer layer of PP-R of the Coestherm® Hexa® Multilayer Pipe makes it compatiblewith the fittings of the Coestherm®range. This makes it possible to use multi-casting andelectric coupling welding techniques.

Jointing Methods

• no investment in new equipment• no investment in technical training

Coestherm® Hexa® Multilayer Pipe jointing phases using Coestherm®, fittingsand the multi-casting welding.

1. Heat the pipe and thefitting at the same timeusing a multi-caster tool

2. Reach a temperatureof 260°C

3. Join the pipe and fit-ting without rotatingthem

Coestherm® Hexa® Multilayer Pipe jointing phases using Coestherm®, fittingsand the electric coupling welding.

1. Introduce the scrapedand cleaned pipe intothe electric couplingconnected to the welding machine

2. Wait at least 2 hoursfrom completing thewelding procedurebefore pressurising thesystem

CAUTION! For correct welding, check the instructions

supplied with the multi-caster tool and the welding machine

Comparison of Coestherm® Hexa® Multilayer Pipe and Coestherm® pipe. With the same outer diameter, Coestherm® Hexa® Multilayer Pipe is 20% better.

COESTHERM® HEXA®

PN20 - SDR 7.4COESTHERM®

PN20 - SDR 6

ND Capacity Capacitymm l/min l/min

16 6.34 5.2920 10.0 8.1325 15.5 12.9932 25.4 21.240 39.7 33.350 62.0 52.663 98.4 83.175 139.4 117.890 200.8 169.6110 299.9 253.9125 387.3 327.8160 634.6 537.5200 991.5 841.1

+20% greater capacity

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ND Nominal Diameter (mm)

Coestherm® Hexa® PN20

Coestherm® PN20

Capa

city

(l/

min

)


Fields of applicationCoestherm® Hexa® Multilayer Pipe can be used in all system applications, in new orrenovation works.

• Supporting columns and branches to thefloors of civil and industrial buildings

• Connection to hot / cold generators (radiators/convection fans)

• Connection to distribution manifolds

DISTRIBUTION SYSTEMS FOR HEATING AND AIR-CONDITIONING

• Supporting columns for the distribution ofhot / cold plumbing water

• Branches to the floors of buildings• Connection to water heaters

1

2

3

PLUMBING SYSTEMS FOR WATER FOR CIVIL AND INDUSTRIAL USE

COMPRESSED AIR DISTRIBUTION SYSTEMS

4FLUID DISTRIBUTIONSYSTEMS FOR AGRICULTUREAND INDUSTRIAL PRODUCTION PROCESSES

Coes suggests the use ofCoestherm® Hexa®

Multilayer Pipe for the columns of buildings and

Coestherm®

for distribution to rooms

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Coestherm® HEXA® Multilayer Pipe PN20 - SDR 7.4Bars measuring 4 metres, packed in bags.

Pipe name: Coestherm® Hexa® Multilayer Pipe PP-RCT/PP-RCT/PP-R, Made in Italy, ND x thickness, PN20 SDR 7.4, reference DIN, date of production.

Range

The Coestherm® Hexa®

Multilayer PipeRange also includes the Ø 16 mm!

Coes recommendsthe use of the

Coestherm® HEXA®

Multilayer Pipefrom the 40 mm Ø

size upwards

external nominal Ø internal Ø thicknessin mm. in mm. in mm.

16 11.6 2.2

20 14.6 2.7

25 18.2 3.4

32 23.2 4.4

40 29.0 5.5

50 36.2 6.9

63 45.6 8.7

75 54.4 10.3

90 65.2 12.4

110 79.8 15.1

125 90.6 17.2

160 116.0 22.0

200 145.0 27.5

Certifications

Germany

Spain

Australia

Raw material PP-RCT

DIN 8077-8078

System

SKZ

AENOR

SAI GLOBAL

in progress

in progress

in progress

Germany

Italy

Italy

EU, Italy, Germany,Austria, Switzerland,Holland, Denmark,Norway, Sweden,Finland, Czech Rep.,USA

MECHANICAL RESISTANCE

SUITABILITY FOR DRINKING

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Raw material PP-RCT

For information on the standards of each country, please contact the Coes Marketing Department

System

DVGW

ARPA

DM 174/04

in progress

in progress


Documents

Folder Hexa Eng