DUCTILE IRON PIPE DN900 k9

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Product Description:

Specification:

1) The standard of pipe: ISO2531:1998, K9

2) Effective length: 6m

3) Inner cement line: Portland cement line as per ISO4179

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

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

6) With 100% quantity of NBR ring, or SBR ring, or EPDM ring as per ISO4633

7) DN80mm-800mm

8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 yeas

9) Produced by Hangzhou chunfeng machine

10) Checked by automatic inspection equipment

11) 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

12) 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

13) T type mechanical joint

14) Packing: in bulk or container

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Q:How can the connection of ductile iron pipe elbow be convenient for connecting?
The groove connecting pipe consists of two categories of products: sealing function of pipe connections with rigid joint, flexible joint, mechanical three and groove flange; the pipe connections transition of elbow, three links, four links, different diameter pipe, blind plate etc..
Q:Ductile iron pipe joint damage, water leakage, want to see the connection with other pipe fittings, how to operate?!
Sawing grinding head, increasing steel socket set
Q:Water supply pipe is ductile iron, then it's fittings and valves and other parts must be ductile iron?
Ductile iron pipe end rubber ring interface should belong to flexible connection. It should be the way to connect the clamps. Then, the valve is also connected to the card sleeve connection.
Q:Principles for the antiseptic treatment of ductile iron pipes
4. epoxy ceramic liningEpoxy ceramic lining is suitable for sewage pipes and gas pipelines, but because of its difficult manufacturing process and high cost, it has some limitations in its use. Epoxy ceramic lining has a high adhesion and finish. It is an excellent anti-corrosion coating.5. aluminate cement coating or sulphate cement coatingThese two special cement coatings are suitable for internal corrosion protection of nodular iron pipes used in sewage pipes to improve the corrosion resistance of acid and alkali components in sewage.
Q:Ductile cast iron can replace copper sleeve
Although the ductile cast iron with lubrication, but no lubrication or copper sleeve, Rongchang graphite copper sleeve, with self lubrication with high strength copper alloy (CuZn25Al5, CuZn24Al6Fe3Mn4) as the basic material, according to the use conditions according to a certain proportion in the work surface processing hole and fill in the solid lubricant, high strength copper alloy provide a high bearing capacity and solid lubricant can form low friction.
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:The design uses water supply ductile iron pipe, PE corrosion protection pipe, HDPE pipe, please ask that good? What's the price of the two?
PE pipe is hot melt connection (with thick wall smooth type, don't use the wavy), has the advantages of convenient connection, not affected by terrain, but should pay attention to cold and rain when try not to do, otherwise easily lead to cracks or Water Leakage interface touch interface. The disadvantage is not pressure, heavy machinery on the flat, but the problem is not, as long as the water does not leak, do not need to redo. Also, PE price volatility is relatively large, the size of the price difference is relatively large, a few more runs to ask the price.
Q:What is cast iron pipe, specification for cast iron pipe?
Ductile iron pipes are more expensive, but the production methods are different.
Q:How does the white iron appear in the case of ductile iron?
If it is to solve the white cast, the casting can be annealed.To prevent a chill in the casting, it is important to know your entire casting process to find the cause and the solution.
Q:It's not easy to drill ductile iron with cobalt high speed steel bit. Please help to point it out
The material can be annealed and the process is simple, that is, heating the workpiece and cooling it naturally. In this way, the hardness of the workpiece can be reduced.

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