Hdpe Pipes and Fittings

  WHAT IS THE HDPE PIPE?

HDPE Pipe, Polyethylene (PE Pipe) are sorted by strength classified according to the intensity of the earlier technological developments. HDPE Pipe  pressure classes that can be made between Pn4-Pn32 and the production of the desired diameter and size of HDPE pressure pipe system has undergone many tests in 1950, particularly in the carriage of drinking water. After the result of these tests of HDPE Pipe, if all reports are positive then it has no harmful effect on human life. One of today's most widely used pipe is HDPE piping systems which is  economical, easy in handling, efficient  performance, easy method of coupling. Is quite useful and is produced by KUZEYBORU.

TECHNICAL SPECIFICATION OF HDPE PIPE (HIHG DENSITY POLYETHYLENE PIPE)

Specification

STANDARD

Unit

Value

Intensity

ISO 1183

gr/cm3

0,95

Melting flow rate (MFR) 190/5

T 003

gr/10 min

0,2 – 0,4

Melting flow rate (MFR) 190/5

T 005

gr/10 min

0,4 – 0,7


Mechanical specifications

Melting flow rate (MFR) 190/5

T 010

gr/10 min

0,7 – 1,3

Tensile stress (akma)

ISO 527

Kg/cm2

255

Elongation (creep)

ISO 527

%

9

Elongation (break)

ISO 527

%

>600

Modulus of Elasticity

ISO 527

Kg/cm2

11216


Thermal
Specifications

Softening Tempreture

ISO 306

°C

77

Deflection Tempreture

ISO 75

°C

75

Coefficient of Thermal Expansion

DIN 53732

1 / °C

0,00018

Thermal Conductivity (20 oC)

DIN 52612

W / m°C

0.4

Flamibility

DIN 4102

--

B2


Electrical

Specifications

Specific Volume Resistance

VDE 0303

Ohm.cm

>1016

Özgül Yüzey Direnci

VDE 0303

Ohm

>1013

Dielectric coefficient

VDE 0303

kV / mm

70

Polyethylene 1000 Pipes for stability (creep) pressure account;

Pk    critical collapse pressure bar
Ec    Modulus of Elasticity
U     Number of cross thermoplastics
S     Thickness (mm)
rm  The average radius tube (mm)

RAW MATERIAL OF POLYETHYLENE PIPE 

Polyethylene Pipe, Pe 32 class is developed in 1950 with improving technology  and low density. 3rd Generation PE 100 Polyethylene raw materials  are used in drinking water pipelines, desalination plants, biological treatment plants, swimming pool piping, sea discharge lines, gravity flow water lines, gas stations , irrigation lines, compressed air lines, cooling-heating lines, pre-insulated sheathing for pipes. Because Low Density Polyethylene Pipe is economical and has high-performance in many areas, such as sewer lines has been a solution. (C2H4) has the general formula of crude oil of 97% polyethylene and is a thermoplastic polymer as shown. The production of raw materials, entirely depends on the availability and price of crude oil. Polyethylene density  is divided into three main groups according to their crystalline structure percent.
• Low density polyethylene raw material (LDPE)
• Medium density polyethylene raw materials (MDPE)
• High density polyethylene raw materials (HDPE)

          hdpe-pipehdpe-pipe          hdpe-pipe

According to other types of raw materials as well as their field of high performance and long life due to the strength of economy most preferably 97% of the product which is used crude for the production of the polyethylene raw material. So the production of polyethylene raw materials, the availability and the price depends entirely on crude oil. It also has many superior properties compared to other thermoplastic polyethylene. The main ones are
* HDPE Pipe is resistant to weather conditions
* HDPE Pipe High resistance to tearing and pressure
* HDPE Pipe Despite high resistance to stress cracking
* HDPE Polyethylene Pipe -30 And -60 degree to strength
* High Density Polyethylene Pipe have corrosion resistance
* Easy and reliable assembly of HDPE Pipe
* In HDPE Pipes Lower level compared to metal pipe friction losses
* HDPE Pipes, Reduced flow noise
* Electrical full insulation, it is a good thermal insulation
* HDPE Pipes are non toxic.
* HDPE Pipe is suitable for radioactive waste.

Bimodal Polyethylene / PIPE

Polyethylene for pipes with advancing technology began to be produced on 1950 II. Polyethylene generation until 1970 and in the 1990s began to be used in the biomedal period polyethylene was formed. Polyethylene should demonstrate excellence in strength and workability is provided by the bimodal polyethylene to accommodate these features  Bimodal Polyethylene known titles can add a few more outstanding features. These are:
* Resistance against cracking tube is perfect.
* It is spacious and provides a cross-section.
* Increases the volume of flow of fluid to pass through the pipe.
* Deflection making tendencies are low.

hdpe-pipe

Ultraviolet (Sunshine) Resistance

In the absence of any physical and chemical protection from UV radiation is affected polyethylene and weakens. Thanks to between 2-3% of carbon black incorporated into the UV input during the production of the weakening cut is avoided.

Classification of Polyethylene Pipe

MRS; Polyethylene pipes and classified by the raw materials used in the production of attachments. MRS material strength values of 20 ° C is also shown by the internal pressure for 50 years.

Raw material class

MRS(MPa) value

PE  32

3.2

PE  40

4.0

PE  63

6.3

PE  80

8.0

PE  100

10

HDPE Pipes are the external factors that affect their lives;

* HDPE Pipes ( Polyethylene pipes) working conditions in, temperature, pressure and fluid properties.
* HDPE Pipe is produced from chemical reactions of rawmaterials.
* Soil structure used during the pipe-laying for PEHD pipes that suits to conditions.

PE 100 pipes are available in a minimum of 50 years of life temperature of 20 oC according to life flow calculation. Polyethylene pipe with chemical bonds that makes connection with HDPE material can vary.All the products included in our production from our website www.kuzeyboru.com.tr address is located one and has all the technical details.
hdpe-pipe
For more information please contact via e-mail to http://http://www.kuzeyboru.com.tr/hdpe-pipes You can visit our web site address or the address of export@kuzeyboru.com.tr

Advantages of HDPE Pipes

HDPE pipes with a history of 60 years of technological developments that have positively influenced and until today has become one of today's most preferred tube.
HDPE pipes; It maintains the general properties of the fluid inside.
HDPE pipes; moss on hold due to the inner surface can be used in drinking water systems.
HDPE pipes; Due to its chemical nature, it has a high resistance to chemicals.
• HDPE pipes; To take shape and slope of the sloping terrain by laying is very simple due to be flexible.
HDPE pipes; Due to its high elasticity properties, for use in areas where a lot of seismic activity is very comfortable. It can orient itself according to the direction of movement of ground motion and does not break.
HDPE pipes; Other types of pipes
HDPE pipes; welding and assembly methods are very simple.
HDPE pipes; Easy to carry because of the weight and thus shipping is cheap.
HDPE pipes; It is highly resistant to acids and alkalis. Only damaged by nitric acid.
HDPE pipes; Environmentally Friendly.
HDPE pipes; Are not affected by underground, there is no refractive properties.
HDPE pipes; it do Not conduct electricity.
HDPE pipes; a good level of friction, wear and has a rustproof.
HDPE pipes; It is strong against microorganisms.

2- Feild Assembly

2.1- Polyether Storage and Transport
2.2.1- Storage

After the production of HDPE pipe, there are some important points to be considered while the storage structures.
* Accumulation against the proposed measures should be taken and must be 1 meter in height.
* Coils are silos for the proposed arrangement. Silo is important not to disturb the balance in the individual coils received.
* Straight pipes should be arranged in horizontal rows and so it should stand from the bottom row to the top row angle. The shift of pipe supports should be avoided as well.

Of storage on top of the pipe:

• Pipes must be stored in a remote way of sharp objects in a horizontal plane.
• PE Pipe fittings in a closed manner, should be stored in the package.
• PE pipe and fittings waste water, dirt and soil contact must be avoided.

Transportation or shifting:

* Freezing or maintained at a lower temperature than PE pipes are becoming weak against shocks. Therefore pipes should not be reduced quickly by dragging on the ground, it’s impact should be seen.
* Polyethylene Pipes with the handsaw when cutting and freezing bilateral assistance should be provided if done at a lower temperature may break or bend.
* Polyethylene pipe will be carried during the transport of the vehicle must be full length of the pipe in the pipe tools and should be hanged out.
* After the move is finished Polyethylene pipe absolutely must use ropes or chains when they are shifted down from the transport vehicle. pipe and fittings must not be thrown to the ground. Use forklifts or cranes use the recommended shifting method.

2.2- Sliding Support Renovation

2.2.1- The open (air) hinged flor

Intervals are restrained; laying line, the temperatures existing in the environment, size and characteristics of the pipe depends on the fluid properties. Usually need continuous support for small-scale Although intermittent bearings used.
Saddle bracket, the bottom of the tube 120 degrees (minimum) should be up bed. To prevent the bearing from damaging edge of the pipe must be taken to be pointed.
Supports formula used to calculate the range are as follows;

L = [(3840xExlxd / (5(Wp+Wf))1/4] / 100

Details;
L: Support Range (m)
E: Young's modulus (MPa)
l: the inertia of the pipe (cm4)
d: Permitted collapse (cm)
Wp: Pipe unit weight (kg / cm)
WF: The unit weight of the fluid (kg / cm)
EUR table of typical values PE 100 pipes for long periods of use

Tempreture ( °C)

-29

-18

4

16

23

38

49

60

E (Mpa)

476

413

270

206

194

159

103

79

2.2.2 Burying Ground Floor

Soil pipe laying in the classic sense to dig, lay, off, requiring a very different and meticulous engineering of logic is a serious work. Terms and explanations that we give here will be the guidance that will enable us to have information on the matter. Making process of laying buried in the soil as it requires decisions should be made and given to the different application methods.
Materials and Processes on the pipe burial

Fitted foundation:

When you are finished digging needs to be done with enough strength on the ground if not the strengh should be made enough.

The layer/ground:

Ditch the ground state according to the required form to implement the process according to the flat level.

Primary and secondary fillers :

The height of the pipe from the ground Trench landfill is made to increase at least 15 cm. The fill tube that improves the quality and lifetime durability.

Primary Filler:

The quality of the material and application technique used in this section is very important. The diameter of the pipe rising from the bottom of the filler pipe is raised to 75%.

Secondary filler:

It is fuller of the distribution of load on top of the reason for making and maintaining the pipes against the play that may occur after the end filler. Place in case of rising to the level of underground water pipes and come in second if the first is filling more.

Last filler:

Although there is not too much of an effect on the structure of the HDPE pipe and pressed. To ride a solid filler pipe will reduce the upper end loads.
Last filler material and the compression paths, sidewalks, etc. structure/processing rules must be observed.

Installation Guidelines for PE Pipes

Workplace and the work to be done by engineers to consider the shape of the surface and it is difficult to determine that which part needs the reinforcement of the pipe. Specific guidelines for situations such as low soil depth is more than the thickness of the meat should be prepared. In general, it is sufficient that we understand the methods for general application. These applications are not installed to deep, on overload events, and are conditions that are sufficiently resistant to pressurize pipes. 

Simplified Application Methods for HDPE Piping

Most of the time an application is required for successful implementation of the following conditions successfully. steps occured by providing the following conditions;
1. The pipe diameter of 600 mm or less
2. SDR 26 or less
3. Fill size of between 0.75 m to 5 m
4- be at least 60 cm from the surface of the groundwater.

Simplified Installation Stages

Entrenchment:

Trench work is a risky method for employees trench collapse are likely to be in every land. That's why workers' health and life-threatening measures should be taken consideration. Trench edges must be kept at a safe angle. According to the recommended length trench laying pipe diameter and depth are included in our table below.


Pipe Diameter (mm)
Norm. Pipe Size (mm)



1



1.5



2.1



2.8



3.4



4

15 - 80

4.6

6.1

7.6

9.1

10.7

12.2

100 - 200

7.6

9.1

10.7

12.2

13.7

15.2

250 - 350

10.7

12.2

13.7

15.2

16.8

18.3

400 – 550

13.7

15.2

16.8

18.3

19.8

21.3

600 – 1050

0

18.3

19.8

21.3

22.9

24.4

1200

0

0

24.4

27.4

30.5

33.5

 

Renovations

After you have created volatility in the ground floor of the ditch it should be evenly filled with the ground bearing. If the bottom of the ditch, filling up to a height of 10-15 cm over rocky bottom. Filler material will be sand, gravel must be non-adherent sand or gravel mixed. Channel depth should be at least 70-80 cm and materials to be made into filler sand or gravel should be non-adherent sand mixed gravel. There’s no need to interfere if the grounding has been done by landfill. Otherwise, the sand and so on should be utilized. Fillers should be adapted to make up the beds.  
*Things to bear thickness must be a minimum of A1 = 100 mm + DN 1/10.
* Pipe filling A2 side, with light pouring in 30 cm thick compact yet 92% - must be compressed 95 percent. This process should be continued via a tube every 30 cm for 30 cm.
The layout of pipes in the Channel
hdpe-pipeProtection from water:

Convenient and safe water level in a ditch must be made below the mouth of the tube. Water is necessary not to enter the pipe. The high water level should help dig wells or draw pump.

To tile curved pipe:

Flanges and fittings for connection to the pipe is rigid both before and after. The distance to the pipe diameter should be 5 to 100 times of bending radius.
Once settled into the ditch pipe may require the use of arch supports to protect. These supports must be removed without support after the last filling placed. 

Placing pipe trench:

200 mm in diameter and 9 kg / m is possible to lay the pipes weighing up manually, but for heavier pipe is certainly a need for suitable transport vehicles and equipment.  During insertion of tube pipe it should be taken into consideration that no one is around in order to minimize the danger. After the sun set in the heats expanded pipe into the trench it should then be allowed to cool and mechanical connections are provided. 

Primary filler:

The primary materials used in the filling of pipes in place should be put into place so as not to play and must be tightened. During this process it is fully seated and replace the pipe should be checked to enclose the filling pipes . This process is essential for using percussion and vibratory plate compactors.

From a different material than HDPE pipe fitting gasket transition:

When pressurized HDPE pipe remains under two different internal forces.
1. Gives cause environmental stress.
2. Twist and thrust tube are reflected as axial tensile stress at the end of the pipe. Axial tension to extend the neck of the tube to expand the diameter of environmental stresses, which may occur, this is the Poisson ratio when the process attempts to shorten the length. In HDPE pipe system keeps itself Briefly, and you do not need to take any measures against the push.

Embedding HDPE Fittings:

HDPE pipes and fittings do not need an extra push against the mounting pressure of being the only part of the reason. Then if the connection to muffle against the fixing process must be made to leave.  In HDPE pipe elastic deformation will occur in situations such as thermal expansion valve, etc., but will not damage the movement caused by the movement of the parts to add an undue burden on the pipe. Here, a sealant made of suitable process reveals the quality of the filling process to the circuit that prevents excessive load.  TA distinctions, the same filler pipe fittings for masts and other general sufficient. A special material made of PE compression process for service connections can not be realized.  T is a need for consolidation and elbow of sand and cement. recent fill the excavated material can be used in the materials, but unsuitable material in order for it must be extracted. This filler pipe assembly operations should be carried out immediately after the end. Thus, the possible impact of the pipe will be protected from cold weather conditions over the case and hook up. 

2.2.3- Water Under Floor

Most convenient and most widely used material in the pipe-laying process which will be held under water is HDPE pipe. The main reason, and other advantages are described below.
* HDPE pipe is light; One of the most important characteristics of lightness is the HDPE pipes. According to the steel pipes 50%, slightly more than 10% of the concrete pipe. Shipping and handling is easy.
* HDPE pipe may face; PE density of 94% of the salt water, because it is up to 96% of the fresh water on the HDPE pipe filled with water even if the water is suitable to swim in. Therefore, be reduced as far as large parts of the ground may be left floating on the water combined. And when it comes to places to be taken down by placing weights on the settling of pipes supplied. 
HDPE pipe is flexible; To adapt to the bottom surface of the immersion pipe and living possible.
* HDPE pipe is soft; HDPE pipes and discharge that may occur in water due to the high deformability, can resist against the waves. It ensures the consistency of the tube against the bottom surface changes due to the same reasons. HDPE pipes are inserted tubes to length to each other. The place is as strong as welded pipe. There is no risk of leakage. HDPE 100 pipe may face even as it filled with water. Therefore weight should be added while floating on a platform or on land.  Swimming process piping can be moved to the desired location and the dipping process is carried out at  appropriate place.  It can swim with the air inside the pipe is full of water must be able to sink the recharged by weight. If this is achieved the control of water pipe breaks in the water filling into the pipe it will occur. If you need to excavate trenches for pipes to be buried under water it is required before the dipping treatment in this process. Will be held to fill the excavated trench should consist of crushed rock for additional protection should be placed in the rock or concrete parts.
Basic Design and Installation Stages for Underwater Applications:

1. Determining the appropriate pipe diameter:

Fluid type, based on the determination of the flow and the pipeline hydraulic calculations to be made. Tube inner diameter should be determined accordingly.

2. Assembly and the calculation of the appropriate size considering the working conditions rate:

Important in terms of temperature and pressure tube is reliable and necessary. The pressure of the pipe should be checked to meet the hammer.

3. The calculation of the required weight and installation range to Dip Tube

3.1- Buoyancy in the water a tube has the formula below;

F = [W pipe + W material] – W overflow
F= The buoyancy in the unit meter kg / m tubes
W pipe = The unit weight of pipe kg / m tubes
W material = unit weight of the substance in the tube kg / m tubes
W overflow = The unit weight of water that overflows the pipe kg / m tubes

3.2   For a complete determination of the soaked tube current weight is calculated.

Usually the overflow pipe at the bottom of the addition of a weight of between 25-50% of the amount of water is sufficient to make the precise detection. But while low enough and calm waters of the lake higher values should be used in place of draining. 

3.3 should be very careful not to leave air pockets in the pipe for swimming and not to create unwanted effects and should be ensured from its condition.
3.4 and clamping range of weight must be determined to be connected to the pipe.
3.5 Making of Weight; Weights for the cause torsion during immersion usually hexagonal, square symmetrically as it is done. There is no harm in being in different ways. The tube will remain after you sink significant currents in the bottom of a flat shape and weight should be preferred. Typical weight of the weight block is located in our table below.

Pipe’s outer diameter (mm)

Countering the amount of pipe Air%
Intervals of Weight Block to

Approximate Weight of Reinforced Concrete Blocks (kg)

10%

15%

20%

In Air

In sweet water

90

3

2

1,5

6

4

110

3

2

1,5

9

5

140

3

2

1,5

14

8

160

3

2

1,5

16

9

180

3

2

1,5

21

12

225

3

2

1,5

25

15

280

3

2

1,5

43

25

315

3

2

1,5

57

33

355

4,5

3

2

102

59

400

4,5

3

2

114

66

450

4,5

3

2

165

96

500

4,5

3

2

182

106

560

4,5

3

2

245

142

630

4,5

4

2

280

162

710

6

4

3

410

238

800

6

4

3

520

302

900

6

4

3

650

377

1000

6

4

3

810

470

1200

6

4

3

1135

658

1400

6

4

3

1540

893

1600

6

4

3

2020

1172

4- To combine water pipes and convenient choice for loading it down should be done.

Before water immersion process of the pipe should be an appropriate shore ramp and when to withdraw the floor of the pipe it must be cleaned so as not to damage the pipe surface.

5- To prepare the underwater bed upgrades, and make the controls of the transition from land to water.

Priorities should be made in the pipe in the trench until the water should be gained without stopping to provide additional protection.  To protect all kinds of mishaps that may affect the water pipe in the trench must be excavated in length and depth. So much so that the flush operation to be performed should remain robust even shark Umeda formed sea. Which will be held for pipeline protection and stabilization, 30-50 cm in height can be fortification on the filler.

6- Reflux pipe to form one unit of the pipe member

Resources made birleştirildik ends of the water pipes in front of the remaining parts will begin to creep more.

The weights should be reduced if possible above the water pipe connected to the water after the floating platform. If weight is not possible it must be done without touching the pipe water.

7. Connecting the weight block

It is required sufficient equipment and transport means for realizing the operation. The fulfillment of the weight assembly, the bottom of the lower part of the tube were removed blocks, placed on top to compress the upper part of the pipe also requires the use of this equipment and transport. To reduce the weight of the water pipe connected it should be left down the ramp. In any case the surface of the pipe to remove the least amount ramps should be as close to water as possible

8- Attached to the immersion pipe (7 could safely be performed simultaneously with the substance present in.)

Weight can be easily downloaded via the included water pipe ramp. When released into the water in the pipes of water over ramps able to hold the weight thanks to the ramp. Rope to keep the pipe materials should not be used as the chain is a method that is recommended to use wide strips instead.

9- Immersing the pipe at specified point

To prepare the first immersion tube is drawn over the line set tubing. Immersed in the process of starting the land continues to plunge into the water. To ensure that the pipe must first be lifted up to the beginning of the tube an air pocket. One of the issues to be considered in the immersion process is the completion of the folding process without the risk of excessive bending. If administered in a controlled manner to the water pipe will not be such a problem. Immersed in a situation that may occur during the supply otherwise hold back compressed air from the valve and pipe the water to swim again. However, compressed air should not be used more than 50%, the pressure of the pipe due to the water pressure is dangerous.

10. The preparation of the transition from land to water

Installation is useful in controlling the substances mentioned below with the end;
- The correct fitting pf HDPE Pipe
- The absence of weight block is regular
- Checking whether there is contact with any material that can cause damage around the pipe
- Removal of the filling of control and temporarily put in place the material certainly should be checked by experts.

2.2- Thermal Expansion

One of the difference of the expansion coefficient of the metal pipe to the metal pipe P is it is 10 times larger . That means more expansion and contraction will occur.
Long-term use would be by limiting the temperature in the pressure pipe. This is usually 60 ° C t. Use of pressure for different temperatures are listed in the following table;

Max. Permanent temperature (oC)

Multiplication Factor

Max. Permanent temperature (oC)

Multiplication Factor

Max. Permanent temperature (oC)

Multiplication Factor

-29

2.54

4

1.49

38

0.73

-23

2.36

10

1.32

43

0.64

-18

2.18

16

1.18

49

0.58

-12

2.00

23

1.00

54

0.50

-7

1.81

27

0.93

60

0.43

-1

1.65

32

0.82

Thermal Expansion / Contraction Effects

Due to the change pipe and welded seams temperature stresses can easily meet. Totally it is not necessary to use a system expansion or expansion in PE.
PE 100 pipe expansion coefficient is higher than other materials need to be aware of the following;
* PE 100 Pipes that will be exposed to a certain temperature to be rejuvenated, will make snake like movements or will put pressure on the fixed point.
* Joints in the HDPE pipe connection is required to connect a methanic playing against it.

Polyethylene Pipe Joining Techniques

Melted with each other to combine the polyethylene pipe or fittings or are connected with mechanical fittings. Melted with each other to combine the polyethylene pipe or fittings are connected with mechanical fittings. Various fittings for remaining outside of polyethylene pipes, flanges or developed in accordance with the objectives of the transition adapter provided with connection.

Known Combining methods for PE Polyethylene Pipes;
1) Electrofusion (EF),
2) Butt-fusion (Butt Welding)
3) Socket Supply
4) Flange Connection

1) Electrofusion (EF) Welding Types of HDPE PE Pipes

Electrofusion Welding Machine by heating by electricity to certain parts located within the copper wire with pieces made with this combination method is done by melting fusion.
By electrofusion welding method just from the same raw material pipes can be made.
The area to be welded by electrofusion welding method needs to be protected from bad weather conditions.
The temperature of the media sources to do with electrofusion welding method should be between 5 ° -50 °.
The temperature of the media sources to do with electrofusion welding method should be between 5 ° -50 °.

Electro Monitoring Required Steps

Before the mouth of the pipe welding process should be checked whether their angle is with its axis. If there’s no angle then it should be discontinued and should allow for right angles to get its axis. Electrofusion sleeve pe pipe surface to be installed must be checked. Source size should in general be up to half the length of the sleeve. Marked by cutting scraping apparatus should be written so that no oxidation should be required.  After scraping is performed it should not be touched and should definitely be protected from adverse weather conditions. If deemed necessary with the clamp attached to the sleeve pipe system is fixed.  Electrofusion cables on welding machine attached to the socket on the sleeve. Barcode value is entered through the machine on the sleeve. Then the welding process is performed by giving tension to the ends of the sleeve socket. It is expected implementation of the cooling process for removing a clamp. Polyethylene pipe laying operations in the more important issue is the quality of the pipe work. Welder's certificate and references, which will be especially important with the welding process still need to be made in the audit.

Advantages of the electro-fusion welding for PE Pipes:

It is possible to direct the output from the main pipe using the technique.
Repair of the pipe is easy.
It can be applied even in very tight spaces.
It does not require much excavation and filling.

2)Resources

Butt Welding; Polyethylene pipes and fittings for joining is one of the most widely used method of joining. The two ends of the pipes to be welded taken by heating under pressure is performed by pushing towards each other. 
Get up to 1200 mm diameter pipes with welding assembly methods can be boiled. Butt welding bonding method is performed in accordance with DVS 2207 standards.
a) Sources of Heat: Heater plate temperature should be between 200-220 ° C and temperature monitoring should be carried out continuously. Table containing the relationship between the welding heat and wall thickness are specified below:

b) Heat Pressure:
Surface of the pipe for the heating process should be based on the heater plate. Heating pressure P ← 0.02 N / MMC kept level.
c) Heating time: the formula for calculating the heating time is as follows;
Pipe thickness x 10 sec.
d) The lip Height: Heater plate and called the wall thickness resulting from aging pipes taken between surfaces. H = 0.55 mm + (0.1 x e) is calculated in mm. E: pipe wall thickness (Table 1/2)
e) Switching time: The time period between the surface heating pipe with the end be removed from the plate heater is the last time. During this operation must be seen strictly pipe surface must not be contaminated and damaged. (Table 4.1)
f) Assembly time: after the end of the replacement process is combined with the surface of the tube to be welded in a time zone close to zero. (Table 1.5)
g) Under Pressure Cooling Time: Merge same value under time pressure should be kept cool. (Table 1/5)

1

2

3

4

5

Pipe Wall Thickness

The lip Height

Heating time

Changing time

Merge
time

Merge
Time

Mm

mm

Sn

Sn

Sn

Sn

……..4,5

0,5

45

5

5

6

4,5……7

1,0

45……70

5……6

5……6

6……10

7……..12

1,5

70……120

6……8

6……8

10……16

12……19

2,0

120……190

8……10

8……11

16……24

19……26

2,5

190……260

10……12

11……14

24……32

26……37

3,0

260……370

12……16

14……19

32……45

37.…..50

3,5

370……500

16……20

19……25

45……60

50……70

4,0

500……700

20……25

25……35

60……80

*** Machinery used in the table is prepared for general information purposes, values may vary depending on the equipment and weather conditions. If you would like to have more information please email us on export@kuzeyboru.com.tr you  can visit the www.kuzeyboru.com.tr address as well for further information.

Necessary Implementation of Welding Processes of the PE pipe

* Get protection from impacts of the adverse weather conditions of the environment.
* Get medium to be welded but it must be under 5'C'n.
* Get trained welder which will make the welding process and must be able to provide good references.
* Get to be used while welding machine must be certified.
* Get thickness of the pipe to be welded must be equal. And if it  equal. Then the difference should not exceed 10%.

The Machinery and Equipment Used in Butt Welding Process:

Get 4 machines used in the welding process and equipment which are;
* Cutting Unit:Components used to make pipes surface smooth and flat This machine is the welding process as a result of the transaction would adversely affect the cleared dirt and oxide layer.
* Clamps: Get in to do the welding equipment that keeps the pipe is fixed. Get set for each source alone should be done differently in the pipe.
* Heating Unit: it faces the pipe is used in heating equipment consisting of those resistances.
* Hydraulic Unit: Shaving, heating, allowing the pressure required in the assembly process, I'm axle clamps that move horizontally.

Output Advantages of Resources

• Click Merge does not require special add the track.
• Received Source elbow with a "T" can be easily produced additional items such as crosses.
• Welding machine is produced in our country, it is easy to Supply. • Additional parts are cheaper than the other pipe.
• 3 applications can be easily and safely to large wall thickness from mm.
• Healthy and safe procedure.
• The strength of the weld zones obtained when a welding connection is made to the Technical would be equivalent to the strength of the main pipe.

Socket Supply

Fitting inner surface of the outer pipe surface after introduction into the fitting until the fusion temperature without waiting to get heated.
The steps required to make the socket welding;
• Pipe ends are cut perpendicular
• End part and the part to be welded fitting cleared
• heated with parts respectively, are combined and allowed to cool.

Connection type
20/63



75/90

Sizes (mm)
110/225



250/1000

Electrofusion Welding

X

X

X

X

Butt Welding

X

X

socket Resources

X*

X*

Flanged Connections

X*

X*

X*

X*

*: Not recommended for gas bearing lines

4) Flange Connection

This adapter plugs welded to the tubular connection. Main flange should be supported by certain pressure from the rear flange . Otherwise, it is inevitable to leak. Print flanges must be from the iron and steel material Is less than 3 mm diameter flange bolts from the bolt holes. There must be between the nut and the pressure flange nut.

HDPE PIPE WEIGHT

Click for HDPE pipe weight table

PE 100 Repairing The Pipes

PE 100 pipe depends on the degree of repair to repair. If the EF method with a small boil or damage can be repaired by tightening the clamp. Another method used recently in conjunction with evolving technologies used by manufacturers to take prune pipe into the capsule.  For larger damage; corrected by putting in place a new piece by removing the damaged part of this process is a simple method. The damaged section of pipe was isolated by crimping tools, and damaged parts can be taken together with the EFA process new parts.
PE 100 pipe wall thickness and weight tolerances Table

HDPE Pipe Wall Thickness Calculation


D : Average diameter
P : İnternal pressure
N : Strength 
Stresses in the pipe wall
hdpe-pipe
Thickness:

External Hydrostatic Pressure

We can load in the event of external hydrostatic pressure will occur with the following calculation.
hdpe-pipes
Pressing stress will occur;

HDPE PIPE TRENCH CROSS SECTION

hdpe-pipe
H: Trench depth
Hustler: distance between the floor and the upper elevations of the pipe (cm)
b: Trench width (cm)
A: Pillow layer height (cm)
D: Pipe outer diameter (mm)
2A: bearing angle in degrees

D ← 600 mm y = 20 cm b = D + (2x20) cm
← ← 600 mm to 1000 mm D y = 20 cm b = D + (2x25) cm
D → y to 1000 mm = 30 cm b = D + (2x30) cm
** HUSTLER upper limit should be 50 cm.

Trench Width

Soil properties must be kept in mind at the appropriate depth and dimension. PE100 for pipe trench width;

D<200

to

600 mm

200 < D < 600

to

D+400 mm

600 < D < 1000

to

D+500 mm should be.

               

Polyethylene Pipe Bending Account

pe-100
Polyethylene pipes are able to have a certain radius of 360 degrees rotated feature. Polyethylene pipes with diameters of between 20-125 forms can be wrapped in coils. This allows for more production feature is also provided. Our website HDPE for pipes of all other technical statements and documents can be found at www.kuzeyboru.com.tr address.

EF HDPE Fittings

Ef Sleeve

hdpe-pipe

It is an insert used in the joints made by electrofusion method. Diameters which are placed in the same two attachment pipe. Sticking together of the two tubes together with those given flow resistor is provided in the attachment.

HDPE Electrofusion Service TEE

hdpe-pipes


Raw P 100 is used in the attachments in liquid or gas infrastructure system. The most important feature provides another aspect of the liquid or gas flow through the line.

HDPE Electrofusion Equal TEE:

hdpe-pipes

HDPE PE100 raw material that is the same diameter Efe Equal TA attachments. Needs to be connected at right angles to the main and intermediate line output is used for valve and branch connections.

HDPE Pipe Electro Fusion Union

hdpe-pipe
HDPE EF İnegal and uneven attachment means which is used for connecting T PE100 HDPE pipes having different diameters and are made by combining electrofusion method
This attachment is still HDPE Efe as equal in the main and intermediate line-out valve and those outlets are used. In order to get more information about our products visit our website www.kuzeyboru.com.tr

HDPE Electro Fusion Cap

Raw Material PE 100 with Efe plugs are manufactured in accordance with the electro-fusion method. It is used to close the line fittings. Cap choice should be taken according to the diameter of the pipe and should be selected as an appropriate  choice.

HDPE EF Elbows
hdpe-pipes

EF welding brackets made from PE raw materials are produced according to the method of placement of appropriate resistor. Elbows project in accordance with the terms of the specifications are used in rotation of the line is at various angles. For further information and details about the EF Elbows please visit us on www.kuzeyboru.com.tr

HDPE EF Saddle

hdpe-pipes

Raw Saddle T PE100 Efe adding that part of the fluid in the direction of the desired diameter is carried out  in order to draw the desired direction. EFA is one of the biggest features to provide great convenience feature saddle shows that one of the most preferred additional components.

HDPE EF Reducer

hdpe-pipes
For more information please contact us via e-mail to export@kuzeyboru.com.tr You can visit our web site as well for further information www.kuzeyboru.com.tr

Quality Assurance Testing Methods

PE 100 tubing set to end at the beginning of the production and application of existing standards is mandatory. And these tests are applied. PE 100 pipes and transport of these tests can be performed only after the dispatch.

1) Thermal Stability (oxidation induction time Determination) 

Antioxidant additives in time to prevent the PE material undergoing oxidation at high temperature.
It is indicative of how well stabilized after the production phase of the material in conjunction with this test. In a good way to stabilizing pipe will not shorten life in a variety of reasons.
We can give some information on the experiment. 
* The equipment is heated to 200 oC by setting after opening the cooling water and gas valves. It is put into the sample capsule and the program is executed.
A distortion should not occur for at least 20 minutes since the start of the test.

2) Carbon Black Volume Analysis (ISO 6964)

PE 100 pipe of the added amount of carbon to impart resistance to UV light (%) are to be identified with. Homogeneous dispersion of the carbon content is required in the product. This does not provide a portion of the debt is affected by environmental conditions. The affected part once to suffer more than the other parts will begin to rapidly deteriorate. Part of the combustion section is combusted in a high temperature furnace with the nitrogen gas is determined as the amount of carbon and is as calculated.

Let's examine how to make the experiment;

* Device 550 is heated less on gas opens until ° C.
* Crucible's tare taken are recorded and placed in a high temperature furnace put into 1 kg of samples.
* Burning of the sample within 20 minutes, and burning (carbon black) portion will remain.
* Put a vacuum dessicator to take moisture from the crucible environment after the implementation period.
* Since end is crucible again weighed formula applying% on carbon quantity is calculated.

3) Density Test (ISO 1183)

PE is performed in order to calculate the weight of the unit volume of the tube 100. The samples are weighed in before the air then previously known liquid density. Account also has the density specified by the standard.

High density PE

Medium Density of PE

Low density of
PE

intensity

0,945-0,965g/cm3

0,926-0,940 g/cm3

0,910-0,925 g/cm3

Production pressure

700 atmosphere

1000-1500 atmosphere

1000-2000 atmosphere

Production Temperature

<100 ⁰C

100-150 ⁰C

150-200 ⁰C

The amount of branched chain molecules

4-5 peices/1000

35-50 peices/1000

80 peices/1000

Crystal structure ratio

%90 Crystal structureratio

%70 Crystal   structureratio

%60 Crystal structureratio

Transparency rate

%90-95

%85-90

%50-85

Melting point

135 ⁰C

120 ⁰C

95-105 ⁰C

MFI (5 Kg/190 °C)

0,22-0,60 g/10 dak

0,85 g/10 dak

>0,85 G/10 dak

Stress at break at 23 ° C

>21 MPa

>15 MPa

>23 MPa

Modulus of elasticity at 23 ° C

>600

>700

>1000

4) MFR (Melt Flow Rate) Test (ISO 1133)

Testing the behavior to temperature of the material to be used before it is processed with an application purpose. Results of tests performed with the device in the MFI values are loaded to the device g / 10 min. Results detected by the unit.
Let's examine how to make the experiment;
• is set to 190 oC for process heating apparatus is opened.
• Sample components are added to the cylinder at the top of the device.
• Average length of 15 mm to flow material cut-off time is automatically entered into the device.
• putting in place the first cut only 5 tracks taken part in the formula mean excluding g / min in terms of MFI has.
• the material mass flow rate (MFR) g / 10 min in terms of value is calculated by the following equation:
MFR (T rated) = 600 m / t

T: Test temperature, ° C,
Man Up: Rated load, kg
m: mean mass of cut pieces, g,
t: Cutting time intervals, s,

5) Tensile Strength (ISO 527)

Flow of thermoplastic pipes and profiles or max. Tensile load comprises determining the stress and elongation at break. It performed to determine the characteristics used in the manufacture of a test carried out for tensile properties and applies to all thermoplastic tubing.
Let's examine how to make the experiment;
• removing such a sample from the spoon by the strips cut in parallel to the pipe axis are conditioned at 23 ° C.
• compressed sample to the upper and lower jaws
• Loan size is measured and recorded the conditioned samples. Furthermore, as the thickness of the sample is measured and recorded. Cross-sectional area calculated from these values.
• the sample drawing speed;
e≤5 mm and 100 mm / min and 12 mm ≥ A> 5 mm and 50 mm / min to> 12 mm and 25 mm / min is set.
• must be greater than 350% compared to the first longitudinal elongation%.

6) Hydrostatic Pressure Test (ISO 9080 EN 921)

PE 100 pipes in the face of pressure over time was examined in order to test the behavior is tested in a shortened environmental conditions. PA 100 changes observed in the 50 year period of this test tube. Let us examine the construction of the experiment;
* The device is filled with water tank and made the opening of the device (device issues to be considered must be constantly filled with water can cause this resistance to decay.)
* Temperature values are encoded according to the value of the test will be made. * Water is filled into closed at each end of the sample.
* With the water in the sample according to the property specified in the standard pipe is expected to conditioning
* In water at 20 ° C for 100 h, 165 h in water at 80 ° C for a given pressure as described in the following formula. As a result of whether there is damage to the sample.
Test pressure formula;
p = 10σ x 2A / - are calculated by e.
σ: environmental stress generated by the applied pressure, MPa;
de: Average outside diameter of the test piece measured in mm;
E: The lowest thickness of the test piece measured in the free length, mm

PE 100 PIPES OF TEMPERATURE AND TIME DUE compressive strength

Sıcaklık

Servis Ömrü

PN4
(SDR 41)

PN10
(SDR 17,6)

PN16
(SDR 11)

PN20
(SDR 9)

10 (C)

5

5,0 Bar

12,6 Bar

20,2 Bar

25,2 Bar

10

4,9

12,4

19,8

24,8

25

4,8

12,1

19,3

24,2

50

4,7

11,9

19,0

23,8

20 (C)

5

4,2

10,6

16,9

21,2

10

4,1

10,4

16,6

20,8

25

4,0

10,1

16,2

20,3

50

4,0

10,0

16,0

20,0

30 (C)

5

3,6

9,0

14,4

18,8

10

3,5

8,8

14,1

17,7

25

3,4

8,6

13,8

17,2

50

3,3

8,4

13,5

16,9

40 (C)

5

3,0

7,7

12,3

15,4

10

3,0

7,6

12,1

15,2

25

2,9

7,4

11,8

14,8

50

2,9

7,2

11,6

14,5

50 (C)

5

2,6

6,7

10,7

13,4

10

2,6

6,5

10,4

13,0

25

2,3

5,9

9,5

11,8

7) Homogeneity Test (ISO 13949)

Homogeneous pigment distribution in the structure of the material is done with the aim of examining possible gaps. Microtone taken in 10-15 m thick cross-section is examined under a microscope.

TS 418- 1 EN 12201- 1

Plastic Pipe Systems - Potable water for drinking and polyethylene
Part 1: General

TS 418- 1 EN 12201- 2

Plastic Pipe Systems - Potable water for drinking and polyethylene
Part 2: Pipes

TS 418- 1 EN 12201- 3

Plastic Pipe Systems - Potable water for drinking and polyethylene
Part 3: Fittings

TS 418- 1 EN 12201- 4

Plastic Pipe Systems - Potable water for drinking and polyethylene
Part 4: Valves

TS 418- 1 EN 12201- 5

Plastic Pipe Systems - Potable water for drinking and polyethylene
Chapter 5: System Compatibility

TS 418- 1 EN 12201- 7

Plastic Pipe Systems - Potable water for drinking and polyethylene
Part 7: Inspection and Quality Control

TS EN 1555- 2

Plastic Pipe Systems - used for the carriage of gaseous fuels - (PA)
Part 2: Pipes

TS EN 1555- 3

Plastic Pipe Systems - used for the carriage of gaseous fuels - (PA)
Part 3: Adding components

DIN 8072

Pipes of Low -Densitiy PE- Dimensions

ISO 4427

Pe Pipes for water Supply Specifications

ISO 4437

Buried Pe Pipes For The Supply Of Ğazeons Fuels – Metric Series -
Specifications

EN 1555-3

Plastic Piping System fort he Supply of Gazeons Fuels-Polyethylene
Part 3: Fittings

DIN 2999

Pipe Threads for Tubes and Fittings

DIN 16963

Pipe Joints and Elements for High Density Polyethylene(HDPE) Pressure Pipelines

DIN 2501-1

Flaniges ; Connecting Dimensions

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