Multilayer pipe

MULTILAYER PERT -AL- PERT 

foto_multicapa

The manufacturing technology PIPEX Multilayer pipe ensures the perfect welding of aluminum ( “butt weld “) such as a good adhesion between the plastic and metal materials , thus achieving a high quality pipe that perfectly fulfills the needs of the market pipes for hot water and heating.

In Ditasa we have a commitment to quality and trust the best brands so that installers can offer the best products . Therefore we focus on multilayer pipe. There is no doubt that in choosing this product the  installation will be of the highest quality.

PIPEX MULTILAYER PIPES ADVANTAGES :

Reliability
“Butt Welding system”
Simplicity and ease of installation
Security
Flexibility
High Temperature Resistance
Resistant to High Pressure
Resistant to oxygen diffusion
Resistant to corrosion and chemicals
Minimal loss of load
Light weight
Resistant to microbial growth
Thermal and electrical insulation
Optimal hygienic – sanitary conditions
Resistant to frost
Shock resistant
No noise transmitted
Low expansion
No inlaid
Suitable for seismic zones

 

Technical data

Value

Unit

Temp . maximum Service

95

ºC

Maximum puntual temperature

110

ºC

Linear expansion coefficient

0,025

Mm/m

Thermal conductivity

0,40

W/m.k

Break pressure

80

Bar

Oxygen permeability

< 0,10

g/m3.d

Internal roughness

> 25

mm

 

Diameter (mm)

Thickness (mm)

Reference

Lenght (mts)

16

2,0

800216201

100-200

18

2,0

800218201

100-200

20

2,0

800220201

100-200

20

2,25

800220202

100-200

25

2,5

800225201

50

26

2,6

800226201

50

32

3,0

800232201

50

 

MULTILAYER PIPE ( PERT -AL- PERT ) PIPEX CONTAIN FIVE (5 ) DIFFERENT LAYERS : 

1º inner layer : PE- RT pipe. Temperature resistant polyethylene, as defined by the standard UNE 53960EX .
2º adhesive layer , particularly designed for bonding plastic to metal , with melting point over 120 ° C .
3º  Aluminum core layer butt welded . Aluminum alloy tubes especially designed for water under pressure .  “Butt welding” advantages :

– A perfect symmetry of the tube, and thus a better bond with the accessory.
– A greater strength of the pipe , uniform over the entire circumference , this ensures the pipe has a greater resistance to pressure and stress generated whith the  bending process of the pipes .
– Increased resistance of the weld spot . In multilayer butt welded pipes, the welding line of the aluminum layer is precisely the strongest point of the foil .

4º adhesive layer , particularly designed for bonding plastic to metal , with a melting point over 120 ° C .
5º outer layer : PE- RT pipe. Temperature resistant polyethylene, as defined by the standard UNE 53960EX .

The manufacturing technology PIPEX Multilayer pipe ensures the perfect welding of aluminum as good the adhesion between the plastic and metal materials , thus achieving high quality pipes that perfectly fulfill the needs required by the market tubes for hot water and heating.

Combination of Plastic Materials (PE- RT) and metal ( aluminum) gives the tubes MULTICAPA PIPEX Excellent Properties , acquiring the Advantages of Plastic and metal pipes , and eliminating the disadvantages of both types of pipes . Among these features highlight :

• Reliability. Product certified by AENOR.
• Ease of Installation . No welding or machining is required.
•  Security. Multilayer pipe PIPEX aluminum layer is produced under the “butt welded” system , providing greater resistance to the pressure and stress that generates when pipes are curved.
• Flexibility. Multilayer pipes PIPEX Present good flexibility and stability properties allowing pipes to bend up to a radius of curvature of 2.5 to 5 times the outside diameter of the tube , keeping the adjusted shape after it’s handling . They can be bent and curved cold with great simplicity and without any special tools .
•  Resistant to high temperatures.  PIPEX Multilayer Pipes can be used with temperatures up to 95 ° C and 110 ° C for some hours.
•  Resistant to high pressures. The estimated multilayer pipe PIPEX work-life under temperatures between 0-95ºC and pressures up to 10 bar is 50 years. At 20ºC the pipe withstands pressures up to 25 bar.
•  Resistant to oxygen diffusion. The aluminum layer is a barrier to gas molecules , eliminating the risk of corrosion which generates oxygen diffusion .
•  Resistant to corrosion and chemicals . The plastic tubes are more resistant than metal to chemicals commonly used ( as reflected in the UNE 53389 : 2001 IN) . These pipes resist chemical damage produced by solvents, oils, and water without corrosion occurring , being suitable for transporting corrosive fluids .
•  Minimum losses.The roughness of the walls of the tubes MULTICAPA PIPEX is much lower than metal pipes. This reduces the energy requirements for pumping water and carries higher flow rate to the inside of the tubes with equal diameter .

•  No fouling. The plastic inner layer is very resistant to limescale and dirt  caused by galvanic corrosion substances.

• Resistant to abrasion.   MULTICAPA PIPEX pipes are erosion and wear-resistant, even in the curved parts where a greater speed of water tends to generate a bigger deterioration.
• Resistant to microbial growth .  The absence of corrosion stops the microbial growth.
•  Lightweight. Weighs 7 times less than copper and 13 times less than iron , for equivalent diameters .
• Optimal sanitary conditions . MULTICAPA PIPEX is suitable for use in any installation of hot water and heating. Made with non-toxic materials and it’s accepted for use in drinking water.
•  Insulation – Low temperature loss . PIPEX multilayer pipes have a very low thermal conductivity of only 0.43 w / mk , which significantly reduces temperature loss by diffusion.
•  Frost resistant.Prevents condensation and reduces the possibility of water freezing .
•  Electrical insulator.   Eliminates any type of galvanized corrosion .
•  It does not transmit noise . Its flexibility greatly reduces the transmission of acoustic velocities even at a higher water flow than metal pipes have.
• Suitable for seismic zones . Because of their elasticity and flexibility they can absorb greater amount of stress than metallic pipes .
•  Low Expansion . The expansion generated by temperature change is minimum , compared to the one generated in metal pipes.
• Shock resistant. The combination of a rigid but flexible pipe allows it to easily absorb hits and impacts .

APPLICATIONS: MULTILAYER PIPES PIPEX

The properties that characterize multilayer pipe PIPEX qualify it as the ideal driving pipe for applications in hot water ( heating pipes , floor heating or hot water ) or transport of corrosive fluids and it’s main applications include:

· Plumbing (hot and cold domestic water )
· Heating systems
· Underfloor heating system
· Melting systems to stop the formation of ice and snow at the entrance of buildings
· Air Conditioning systems
· Industrial Facilities ( compressed air,  toxic or corrosive fluid transport , … )
· Farming installations

 THERMAL CHARACTERISTICS

characteristics

value

unit

Maximum service temperature

95

ºC

Maximum point temperature

110

ºC

Coefficient of linear expansion

0,025

mm/m

Thermal conductivity

0,40

W/ m·K

 

PHYSICAL FEATURES

characteristics

value

unit

Burst pressure

80

Bar

Oxygen permeability

< 0,10

g/m3.d

Internal roughness

0,007

mm

Lowest adhesion efficiency between PE- RT inside wall and Aluminum

> 25

N/cm

 

UNE design pressures 53960EX

characteristics

value

unit

Cold water (20ºC)

10

Bar

Class 1. Supply of hot water at 60 ° C

6

Bar

Class 2. Hot water supply at 70ºC

6

Bar

Class 4. Underfloor

6

Bar

Class 5. High temperature radiators

6

Bar

 

Pressure Resistantace

characteristics

value

unit

Resistance to internal pressure 20 ° C, 1 hr

> 40

Bar

Resistance to internal pressure 95, 1 hr

> 30

Bar

Resistance to internal pressure 95, 165 hr

> 23

Bar

Resistance to internal pressure 95, 1000 hr

> 20

Bar

 

 THERMAL EXPANSION Comparison

References and Price

diámeter (mm)

thickness (mm)

referene

length (m)

Price €/mt

16

2,0

800216201

100

Consult

16

2,0

800216201

200

Consult

18

2,0

800218201

100

Consult

20

2,0

800220201

100

Consult

20

2,0

800220201

200

Consult

20

2,25

800225201

200

Consult

25

2,5

800225201

50

Consult

26

3,0

800226201

50

Consult

32

3,0

800232201

50

Consult

16

2,0

800216201

4

Consult

18

2,0

800218201

4

Consult

20

2,0

800220201

4

Consult

20

2,25

800220221

4

Consult

25

2,5

800225251

4

Consult

26

3,0

800226301

4

Consult

32

3,0

800232301

4

Consult

 

 Volume and Transport Data

diámeter (mm)

thickness

 (mm)

reference

length

(m)

TIED

TRAILER

boxes

meters

pallets

boxes

meters

16

2,0

800216201

100

24

2400

33

792

79200

16

2,0

800216201

200

16

3200

33

528

105600

18

2,0

800218201

100

24

2400

33

792

79200

20

2,0

800220201

100

16

1600

33

528

52800

20

2,0

800220201

200

9

1800

33

297

59400

25

2,5

800225201

50

16

800

33

528

26400

26

3,0

800226301

50

16

800

33

528

26400

32

3,0

800232301

50

9

450

33

297

14850

 

diámeter (mm)

thickness

 (mm)

reference

length(m)

TIED

PALLET

TRAILER

bars

meters

 atados

pallets

atados

meters

16

2,0

800216201

4

40

160

20

27

540

86400

18

2,0

800218201

4

35

140

20

27

540

75600

20

2,0

800220201

4

30

120

20

27

540

64800

25

2,5

800225201

4

20

80

20

27

540

43200

26

3,0

800226201

4

20

80

20

27

540

43200

32

3,0

800232301

4

15

60

20

27

540

32400

 

 

QUALITY CONTROL

All production of multilayer pipes PIPEX are subjected to continuous testing and quality controls which ensure that the product that is launched to the market is correct for installation purposes. PIPEX SYSTEMS SA has a laboratory equipped with the most modern quality control tools that perform all the required tests to the pipe:

  • Dimensions: diameter , inner diameter , wall thickness , rounding of the pipes . Double control both during the production line and afterwards on the already manufactured product . UNE -EN 3126.
  • Appearance: Control of the various layers of the product checking there are no holes , wrinkles , cracks or any other defect that prevents normal functioning.
  • Heat Behavior :( Longitudinal Shrinkage ) . According to UNE 53960EX . Ensures the proper use of the pipe after undergoing thermal expansion without having the adhesion between layers suffer.
  • Resistance to internal hydraulic pressure :The test is performed using the method described in standards UNE-EN ISO 1167. The conditions of time , temperature and pressure are those described in the UNE 53960EX standard ( see “Technical Data”)
  • Adherence and cracking expansion : according to UNE 53960EX . Ensures the correct use of the product after undergoing mechanical expansion equal  or greater than 10% of the initial diameter , without lack of adhesion between layers or cracks occuring in the aluminum layer .
  • Tensile Adhesion:  ( Peel testing ) . According UNE ISO 17454. 53960EX  minimal and medium adhesion strength are determined  to separate the layers of PE- RT interior and aluminum in a portion equivalent to 270 pipe.
  • Thermal Stability : ( Internal pressure ) . According to UNE 53960EX . Pressure test at 110 ° C for 1 year verifies the heat aging resistance of the tube  .
  • Induction time to oxidation : The test is performed according to the method of the UNE -EN ISO 1133 on the material of the inner layer of PE- RT , both in the starting raw material and the finished product.
  • Flow Index : The test is performed according to the method of the UNE -EN ISO 1133 on the material of the inner layer of PE- RT , both in the starting raw material and the finished product.
  • Thermal cycling : ( Adhesion and evaluation of the aluminum layer after temperature cycling ) . A pipe sample is subjected to 5000 cycles of 15 minutes to water pressure of 10 bar and temperature of 20 and alternatively 93 ° C. Once the test is finished, drawn adhesion and lack of corrosion in the aluminum layer are determined.

WARRANTY
Multilayer pipes PIPEX are guaranteed for 10 years by a civil liability insurance that covers any damage that may arise from the building due to a failure caused by a manufacturing defect in the product, for up to 600,000 euros.

CONDITIONS OF THE WARRANTY

· The warranty is provided on the condition that between the completion of the installation and the accident, the amount of time is under 10 years
· The use of the tube with unknown or non-approved fittings by PIPEX SYSTEMS SA, as well as the use of running water  coming from anywhere else than the supply network, will avoid the warranty.
· This warranty does not take effect when the installation has not complied with the manufacturer’s installation instructions, and  technical information of the manufacturer has not been taken into account.
• The installation must be performed by a specialized and registered company . The warranty excludes damage of any kind due to force majeure, as well as errors or incorrect assembly.
· The warranty requires written notification to PIPEX SYSTEMS SA , within three days from the date of the incident .
· In case of failure, PIPEX SYSTEMS SA reserves the right to inspect the damage, always within  the following eight days  to the incident and before starting any process to amend the situation.
· The measures taken by PIPEX SYSTEMS SA in order to minimize damage do not imply recognition of responsability under the conditions of the warranty. The negotiations on compensation should never be considered as a waiver to the objection that the notification of the accident has not been presented in due course, wether technically unjustified or deficient.

SCOPE OF THE WARRANTY
· Responsibility of PIPEX SYSTEMS SA covers free replacement costs of PIPEX pipes , which may be attributed, demonstrably, to failures in the production. The necessary repair works are also included to restore the previous situation to the incident. Extra compensation is excluded, whether it is stopping the exploitation and / or production, as well as depreciation and other indirect damage.
· PIPEX SYSTEMS SA is responsible for all damages caused by defective material in the promoter’s installation or third partiese’s.
· PIPEX SYSTEMS SA reserves the right to assign the possible sanitation arrangements to a specialist company of their choice.
· PIPEX SYSTEMS SA assumes responsibility under the two preceding paragraphs to an annual amount of 600,000 euros.
· On the other damage or injury not covered in the previous two paragraphs, PIPEX SYSTEMS SA responds according to what is legally planned.
· To validate the rights under this warranty, the owner must submit notification of the  incident within the  stipulated time in the terms of the warranty.
· Any notification, consent or resolution must be notified in writing to be valid.

IDENTIFICATION

PIPEX multilayer pipe is marked indelibly on each meter with the following message:

AENOR 001/329 – Certificate AENOR product.
SKZ A-449 – Number of product certificate SKZ (Germany).
Trademark – PIPEX.
PERT-Al-PERT. Composition of the layers.
Diameter x Thickness in mm.
Class of application and design pressure.
UNE53960EX. Reference standard for the production and certification of the tube.
Date and time of manufacture.
Footage.

PIPEX multilayer pipes are certified by major European institutes of Quality Certification. . These include the Certificate AENOR. These certificates ensure that both the pipe MULTICAPA PIPEX as the production process, after undergoing the relevant inspections by independent official bodies truly complies with the UNE-EN ISO 15875.

Also multilayer pipes PIPEX include the SKZ product certification throughout its whole range. SKZ (Suddettes Kunstoff Zentrum).

Also, PIPEX SYSTEMS S.A. is certified according to ISO 900, by AENOR and IQNet with.