Self-restrained Joint Ductile Iron Pipe

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
1 Metric Ton m.t.
Supply Capability:
300000 Metric Tons per Year m.t./month

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Product Description:

Overview of Ductile Iron Pipe

Ductile cast iron, also called ductile iron, spheroidal graphite iron, or nodular cast iron, is a type of cast iron invented in 1943. While most varieties of cast iron are brittle, ductile cast iron is much more flexible and elastic, due to its nodular graphite inclusions.

Graphite particles exist in the form of sphericity in ductile cast iron. Sizes graphite particle are restricted to 6 -7 class and spheroidizing rate should not be less than 80%. Thus after the spheroidizing process, ductile iron will be endowed with mechanical properties of both cast iron and steel.

Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water supply and sewerage design. Ductile cast iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel. Ductile Iron Pipe is the most widely-used pipeline product in water supply and water drain/sewage projects.

 

 Self-restrained Joint Ductile Iron Pipe

General introduction of Self-restrained Joint Ductile Iron Pipe

•Material : Ductile Cast Iron

•Size Range : DN 80mm to DN 1200mm

•Unit Effective Length : 6m or 5.7m or negotiable

•Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007

•Annual capacity : 300,000 tons

•Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.

•Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179

•Special requirements on external coating and internal lining can be applied

•We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

 

Mechanical Properties

Item

Tensile Strength (N/mm2)

Elongation(%)

Proof Stress (N/mm2)

Hardness HB

DN80

TO DN2600

DN80 TO DN1000

DN1100 TO DN2000

DN80 TO DN1000

DN100 TO DN2000

Pipe

≥420

≥10

≥7

≥270

≥300

≤230

Fittings

≥420

≥5

≥300

≤250

Standard Lining and Coating

External Protection

Metallic zinc complying with the standard ISO8179,and bitumen,or special protective coating according to the customer’s requirement.

Notes:

.            Pipes and fittings conform to the requirements of International Standard ISO 2531,British Eurpean Standard BS

.            EN545,and their extensions. If information given in English and Chinese differs,the English version prevails.

.            Dimensions and masses of pipes and fittings are approximate and are for refererces only;accurate dimensions and

.            masses should be confirmed with us at the time of placing order. Flanged joint pipes and fittings are generally

.            available with PN10,PN16 and PN25. Socketed joint pipes and fittings generally available with T type and K type joints.

Features of Self-restrained Joint Ductile Iron Pipe:

.            Ductile Iron Pipe offers proven reliability and the quality.

.            It is quick and easy installation.

.            The ductile iron pipe has high pressure capability.

Application:

Used for water and sewer lines.

Production Process

Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water supply and sewerage design. Ductile iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel.

 

 Self-restrained Joint Ductile Iron Pipe

Specification of Self-restrained Joint Ductile Iron Pipe:

Standard wall thickness of Self-restrained Joint Ductile Iron Pipe

Nominal Diameter

Wall Thickness(mm)

DN(mm)

Pipe

Fittings

Class C

K8

K9

K10

K12

K12

K14

80

4.4

6

6.0

7

8.1

100

4.4

6.0

7.2

8.4

125

4.5

6.3

7.5

8.8

150

4.5

6.3

7.8

9.1

200

4.7

6.3

8.4

9.8

250

5.5

6.8

7.5

9

9

10.5

300

6.2

6.4

7.2

8

9.6

9.6

11.2

350

6.3

6.8

7.7

8.5

10.2

10.2

11.9

400

6.5

7.2

8.1

9

10.8

10.8

12.6

450

6.9

7.6

8.6

9.5

11.4

11.4

13.3

500

7.5

8

9

10

12

12

14

600

8.7

8.8

9.9

11

13.2

13.2

15.4

700

8.6

9.6

10.8

12

14.4

14.4

16.8

800

9.6

10.4

11.7

13

15.6

15.6

18.2

900

11.6

11.2

12.6

14

16.8

16.8

19.6

1000

12.6

12

13.5

15

18

18

21

1200

13.6

13.6

15.3

17

20.4

20.4

22.8

1400

15.7

15.2

17.1

19

22.8

22.8

26.6

1500

16.7

16

18

20

24

24

31

1600

17.7

16.8

18.9

21

25.2

25.2

29.4

1800

19.7

18.4

20.7

23

27.6

27.6

32.2

2000

21.8

20

22.5

25

30

30

35

 

Self-restrained Joint

Self-restrained Type is a push-in self anchored joint. The principle of joint anchoring consists in transmitting the axial forces from one pipeline to the following one, thus ensuring that the joint does not come apart.

The application of self-restrained joints is of particular interest where congested conditions preclude concrete anchor block constructions or in poorly cohesive soils.Self-restrained joints combine the advantages of flexible joint pipes and welded joint pipes.

 Photo of Self-restrained Joint Ductile Iron Pipe

 Self-restrained Joint Ductile Iron Pipe

 

 self-restrained ductile iron pipe

 

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Q:What's the difference between grey cast iron pipe and ductile iron pipe?
Ductile iron pipe is a kind of casting alloy developed in the late 1940s. It is a kind of spheroidal graphite cast iron which is added into the molten iron by adding inoculant and inoculant. The mechanical properties of spherical graphite, so much more better than that of grey cast iron, cast iron, close to the steel, but the price is lower than steel, and still has many excellent properties of ordinary cast iron, such as good casting, shock absorption, machinability and low notch sensitivity etc.. Therefore, many important mechanical parts, such as crankshaft, connecting rod, gear, valve body and cylinder liner, can be made of ductile iron to save steel and reduce cost.
Q:Is there a kind of pipe called lined ductile iron pipe? Seeking manufacturers?
The 10kg pressure ball tube is also used as a drain, and the second is the W ductile iron pipe, i.e., without spigot, ductile tube, or lined ductile iron tube.
Q:Is ductile iron pipe breakable?
5, inferior wood surface is easy to produce cracks, because its billet is adobe, Adobe porous, Adobe in the process of cooling due to the role of thermal stress, cracks, after rolling, there are cracks;6, poor drainage tube appearance often pitted phenomenon. Pits is due to groove wear caused by defects in pipe surface irregular uneven. Because of the poor sewer pipe manufacturers to pursue profits, often rolling groove rolling most standard.Ductile iron pipes are broken because of the excessive heat treatment during casting or the lack of proper addition in casting to prevent a change in the proper brittleness and to cause cracking. It is recommended that you used to repair defects of cast iron machine, are currently on the market to sell, but also can ensure welding intact appearance, make your products by quality, but if it is in the use of performance can not meet the effect, especially the pipeline pressure quite big, what methods are of no use that must be re cast as the new.
Q:What are the differences between cast iron pipes W and A?
W cast iron pipe is subdivided into W cast iron pipe and W1 cast iron pipe, the difference between them is the difference between the wall thickness. Because of the cold weather, the requirements for pipes are higher. The W cast iron pipes are mainly used in the north, while the W1 cast iron pipes are mainly used in the south.
Q:What is cast iron pipe, specification for cast iron pipe?
A cast pipe made of cast iron. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings.
Q:How much is the installation cost of the ductile iron tube?
Water supply pipe is the first choice, with high cost performance. Compared with the PE pipe, from the installation time, ductile pipe PE pipe installation is simple and rapid, and after the installation of internal and external pressure bearing better tightness and corrosion resistance; from the point of view, ductile pipe sealing better after installation, but also can improve the corrosion resistance through various anti-corrosion methods;
Q:Ductile iron pipes perennial bubbles in the water will rot it
Ductile iron pipes mainly called centrifugal ductile iron pipe, it has the properties of nature, iron and steel, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..
Q:How can the old water pipe ductile iron pipe be opened with three flanges?
There are finished products with flanges, but they are not easy to buy. They are basically useless. Now basically the adoption of the pipe, so it is recommended to use the tray flange, disk plug: one for the flange, one for the socket; socket: one for the mouth, one for the socket. According to the diameter of pipe fittings, there are usually equal diameter three pass, different diameter three pass and so on. According to the direction of branch pipe, there are three straight and oblique three. In accordance with the connection mode, there are three ordinary, threaded three pass, card sleeve three, and socket three. The connecting flange of the sleeve is connected with the connecting angle of the bearing mouth, and the telescopic device can also be used. The connection between the pipe and the pipe adopts the form of socket type or flange disk interface. According to the function, it can be divided into two kinds: flexible interface and rigid interface. The flexible interface is sealed with rubber ring, which allows a certain degree of corner and displacement, so it has good seismic resistance and tightness, and it is easy and quick to install than rigid interface.
Q:How long is the service life of the cast iron pipe, and the time of use of ductile iron pipes?
When it comes to the service life of nodular cast iron, its maintenance is essential for its long service life. Then, the focus of the maintenance of ductile iron pipe is to pay special attention to, will affect the long-term use of ductile iron pipes, stable operation of socket, row, etc., we should make efforts to these aspects of the mouth without debris. Make sure that the rubber ring of the ductile iron pipe has been smashed with a rubber hammer, and it is not twisted or twisted, and it is uniformly stuck in the slot. Ductile iron pipe in the maintenance process, because of the pneumatic tube axis is buried into the ground, so in the face of a tilt angle of the time, we must be careful, if the resistance is too large, will not force the excavation, in order to prevent the distortion of the rubber ring.
Q:How many casting methods are there in ductile iron casting? A 60*6 discus can not have sand holes. Its surface is smooth. What process can be used to make it?
This is such a small piece, do not worry about shrinkage, mainly pay attention to sand hole and slag. With Disa wet molding line, a box of more pieces, suitable for mass production, defects will be relatively less. By using other methods (resin sand coated sand, etc.) can also be the main attention, don't type it, then the level of liquidity and relatively ductile iron, gray iron poor, sand and gas can not go up, sand holes or pores will spread in the discus plane.
HYDROTECH,possesses 2 blast furnaces with 450 Cubic meter , 3 sets of 3000kw blast furnace gas generator and 6 ductile iron pipe centrifugal machines. Yongtong possesses a strong production capacity, 1.3 million tons casting and ductile iron and 0.4 million tons ductile iron pipe, the diameter ductile iron pipe is from 80mm to 1200mm.

1. Manufacturer Overview

Location Henan, China
Year Established 1958
Annual Output Value Below US$1 Million
Main Markets Mid East, Africa, South Asia, Eastern Asia
Company Certifications ISO 9001:2008;ISO2531:2000

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin; Qingdao
Export Percentage 1% - 10%
No.of Employees in Trade Department 3000 People
Language Spoken: English; Chinese; Spain; Alabic
b)Factory Information  
Factory Size: Above 150,000 square meters
No. of Production Lines Above 6
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average