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:How to properly maintain FRP pipes
The wall of the pipe is smoothReduce flow resistance, increase flow speed and reduce energy consumption. Compared with the same size steel pipe, the flow rate of the same volume can be increased by about 10%, and no fouling and long-term use can not reduce the flow rate. The protection of cables in interference and heavy corrosion environment is better.
Q:Qianwei County ductile iron pipe which tool to use cutting convenience?
Cutting method for cutting ductile iron pipes, in order to obtain neat kerf, we should start with a direction of play saw saw to end. If the requirement of the section is not high, the direction of sawing can be changed gradually to reduce the resistance and facilitate cutting in.
Q:What are the differences between cast iron pipes W and A?
Cast iron drainage pipe generally divided into three categories, namely W type socket cast iron pipes, cast iron pipes of A type, B type cast iron drainage pipe, the three pipes have good seismic performance, strong sealing performance, simple construction, convenient maintenance, reliable use, so it is also called the cast iron pipe for earthquake.
Q:Will the cast iron pipes rust?
Qualified ductile iron pipe requires lining standard cement. The outer wall of pipe needs spraying zinc treatment and asphalt paint coating, and other epoxy resin paint can also be selected.
Q:Fire water supply network adopts ductile iron pipe, the test pressure should be no more than MPa
To your selected fire pump highest lift 1.5 times to suppress, generally not more than 1.6MPa, if the use of ductile iron pipe, test pressure according to 2MPa to suppress.
Q:What quota can be used for the installation of DN300 ductile iron pipes?
Ductile iron is a kind of high strength cast iron material developed in 50s twentieth Century, its comprehensive performance is close to the steel, it is based on its excellent performance, has been successfully used in casting complex stress, strength, toughness and wear resistance requirements of the higher parts. Nodular cast iron has developed rapidly to be second only to grey cast iron and widely used as cast iron material. The so-called "iron instead of steel", mainly refers to ductile iron.
Q:Usage of ductile iron pipe expander
Usage of ductile iron pipe expander:1, the expansion device should check its type, specification and piping configuration before installation, must comply with the design requirements.2, the expansion of the inner sleeve should be noted that the direction of the inner sleeve is consistent with the direction of the medium flow. The hinge rotation plane of the hinge type telescopic device should be consistent with the displacement rotation plane.3, the need for "cold tight" expansion device, pre deformation of the auxiliary components should be installed in the pipeline before they can be removed.4, it is strictly prohibited to use telescopic deformation method to adjust the installation of the pipe, so as not to affect the normal function of the telescopic device, reduce the service life and increase the piping, equipment and supporting components of the load.5 、 during installation, welding slag is not allowed to splash to the surface of wave shell, and the wave shell is not allowed to suffer other mechanical damage.6, pipe installation is completed, should be removed as soon as the wave expansion device used for installation and transportation of yellow auxiliary positioning components and fasteners, and according to the design requirements will be transferred to the specified position limiting device, the pipe system has the ability to compensate fully in the environmental conditions.
Q:There are several forms of flexible interfaces for Spigot Cast Iron Pipes
At present, the flexible interfaces include slip type rubber ring interface, R rubber ring interface, flexible mechanical interface, A type and flexible mechanical interface, K type.1. slip in rubber ring interfaceRubber ring and pipe are supplied by supply factory. A rubber ring is installed before the socket in the working surface and no tower water supply equipment Jack working surface cleaned, the rubber ring embedded concave socket tip in the rubber ring, and the exposed surface and the socket of the working face, coated with lubricant has no influence on the quality of the rubber ring. The water supply equipment socket end chamfering and rubber ring even after contact with special tool socket socket will push, push people to mark depth should be set in advance, before the festival, before the two push interface depth and review has been.
Q:What's the function of the cement mortar lining of ductile iron pipes?
Active protection is superior to barrier coating, cement mortar lining, and a stable hydroxide film formed on the surface of ductile iron and steel pipe to form a protective layer. This kind of protective coating has excellent antiseptic properties because they spontaneously protect themselves even in discontinuous linings. A polymer in sharp contrast, such as an epoxy lining, is also barrier coating, but only if 100% is applied without leakage. Any interruption or leakage will cause corrosion.It has been documented that cement mortar and cement mortar have been applied to the field of water transportation and can meet the water quality standards for a long time. Some standards still apply to the world. Cement mortar does not support microbial growth. In the case of corrosive water or low flow rate (prolonged stagnation), it is better to use cement mortar lined pipes because it can maintain high pH values in the pipe. This does not cause health problems and can be prevented by very simple sealed coating methods. The natural characteristics of the sealing coating provide the best protection for the inner wall of the pipe, while ensuring that all the water quality indexes meet the quality requirements, low cost and high efficiency.
Q:Can the underground cast iron pipes be connected with clamps to form buttress?
Best not to, because the use of clamp connection way to connect the poor integrity of the pipeline, the base treatment is not in place or uneven settlement, it is easy to produce deformation, resulting in pipe bending deformation, easily leaked from the junction.
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