K Type Ductile Iron Pipe DN300 Socket spigot pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
200 m.t
Supply Capability:
30000 m.t/month

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Product Description:

Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006K9 K8

2) Effective length: 6m/5.7m

3) Inner cement line: Portland cement lineas per ISO4179

4) Zinc coating: at least 130g/m2 as per ISO8179

5) Bitumen painting: at least 70μm as per ISO8179

6)With 102% quantity of NBR, SBR, or EPDM ring asper ISO4633

7) DN80-DN1200

8) Highstrength, lighter than grey iron, good corrosion resistance, no furring, smallflow resistance, easy fixing, long life tome about 100 yeas

9)Checked by automatic inspection equipment

10) Composition:

Chemical composition

Chemical composition

Ductile Cast Iron  Pipe (%)

Grey iron pipe (%)

Steel pipe (%)

C

3.5-4.0

3.2-3.8

0.1-0.2

Si

1.9-2.6

1.4-2.2

0.15-0.4

Mn

0.15-0.45

0.4-0.6

0.3-0.6

P

0.06

0.3

0.02-0.03

S

0.02

0.1

0.02-0.03

Mg

0.03-0.06

 

 

11) Feature:

Mechanical  properties

 

Ductile Cast Iron  Pipe

Grey Iron Pipe

Steel Pipe

Tensile  Strength(Mpa)

420

150-260

400

Yield Strength(Mpa)

300

No Confirmation

No Confirmation

Bending  Strength(Mpa)

590

200-360

400

Elongation (%)

10

Neglected

18

Brinell  Hardness(HBS)

≤230

230

About 140

12) T type mechanical joint

13) Packing: in bulk or container

PACKING: 1) Pipesare bundled together with the steel belt.

2) Wooden pieces are put between the pipes.


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Q:What is the difference between a PE fire hose and a ductile iron pipe?
Seamless steel pipe: a pipe with a hollow cross section, used as a conduit for transporting fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
Q:What are the advantages of cast iron pipes?
The ductile iron pipe with flexible joint construction, convenient operation, can improve the efficiency of construction, improve the construction conditions, reduce the construction cost, and most of the rubber ring connection interface, simple operation, can shorten the construction period, reduce the construction cost.
Q:Is there any cast iron pipe used in the fire hose?
No, I think so. In theory, you can.See if the specifications have any requirements for the material.
Q:Advantages and disadvantages of ductile iron pipes?
The ductile iron pipe has a single length of 6 meters and a large wall thickness. The cast iron tube has a single branch length of 3 meters and a thinner wall thickness.
Q:Can ductile iron pipes be installed outdoors?
Ductile iron pipes can be installed outdoors.
Q:What effect does magnesium play in nodular cast iron?
Magnesium can be graphite precipitated in spherical form.But the specific mechanism is not clear, and now it is still debated in the academic circles.In addition, magnesium and sulfur generate MgS, which removes S from molten iron, which impedes the formation of spheroidal graphite.Therefore, Mg has two functions to eliminate the influence of S on Nodular Iron and promote the precipitation of graphite in spherical form.
Q:Ductile iron pipe is how many years warranty
Ductile iron pipe warranty is unlimited.
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
Japan's Kubota ductile mechanical interface, in recent years has been introduced to China. As in the Beijing water pipeline construction from the Miyun reservoir to the Huairou reservoir, the use of a large number of nodular type DN2600mmK mechanical interface of cast iron pipe.The mechanical interface of ductile iron pipe is divided into A and K. The tubes and fittings are made of ductile iron, straight pipes, screws, bolts and rubber rings.The mechanical interface has good sealing performance. When the water pressure reaches 2MPa in the test, there is no leakage. The axial displacement and the angle of folding all reach a high level, but the cost is higher.
Q:What are the requirements for the hydrostatic test of ductile iron pipes?
The hydraulic pressure test shall be carried out in the backfill before trying to allow the pressure after passing the backfill, backfill, the graded gravel fill to 300mm above the top of pipe, and then the soil backfill, backfill process by 200~300 tamped pipeline above 500mm within more than 500 can be used in artificial ramming, mechanical compaction. The degree of compaction shall not be less than 0.93.

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