DUCTILE IRON PIPE DN1200

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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

Q: How to choose a ductile cast iron pipe with guaranteed quality: 1, first of all choose the regular manufacturers of ductile iron pipe products.2, the choice of ductile iron pipe, should be based on the specific circumstances of the construction site, select the pipe and fittings corresponding to the form of interface.3, rubber rings recommend the use of three yuan ethylene propylene rubber ring and so on.4, listen to the voice, knocking the iron: short duration. The iron ball: crisp sound, echo, short duration5, the cutting surface is gray: gray, shiny surface seems very dark, very rough. Ductile iron: gray, gray luster is bright, like gray surface roughness.

Q: Fire water supply network adopts ductile iron pipe, the test pressure should be no more than MPa: Strictly speaking: the outer pipe network and the internal pipe network are the same. Minimum fire 1.0MPa, minimum sprinkler 1.4MPa. Because not only in accordance with the water pump, but also take into account the pressure on the fire engine.

Q: What are the requirements for the hydrostatic test of ductile iron pipes?: The pipe work pressure P is less than 0.5MPa, the test pressure is 2P, the pipe work pressure is greater than 0.5MPa, the test pressure is P+0.5. After the water pressure rises to the test pressure, the pressure is fixed for 10 minutes, and the pipe joint and the pipe body are not damaged and leaked.

Q: What is the expected deflection range for ductile iron pipes?: The expected deflection range for ductile iron pipes typically falls within the range of 2-5% of the pipe's diameter.

Q: What are the different methods for testing ductile iron pipe?: There are several methods for testing ductile iron pipe, including visual inspection, hydrostatic pressure testing, ultrasonic testing, magnetic particle inspection, and mechanical testing.

Q: Can ductile iron pipes be used for geothermal energy systems?: Yes, ductile iron pipes can be used for geothermal energy systems. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications, including geothermal energy systems. They can effectively handle the high pressures and temperatures associated with geothermal energy production, making them a reliable choice for transporting hot water or steam. Additionally, ductile iron pipes have a long lifespan, reducing maintenance and replacement costs for geothermal energy systems.

Q: What are the different coating thickness options for ductile iron pipe?: The different coating thickness options for ductile iron pipe vary depending on the specific application and requirements. However, common coating thickness options for ductile iron pipe range from 200 to 400 microns.

Q: What is the expected bending stress capacity of ductile iron pipes?: The expected bending stress capacity of ductile iron pipes varies depending on the specific grade and size of the pipe, as well as factors such as installation conditions and external loads. However, ductile iron pipes generally have high strength and flexibility, allowing them to withstand significant bending stresses. It is recommended to refer to the manufacturer's specifications and engineering guidelines for a more accurate estimation of the bending stress capacity of a particular ductile iron pipe.

Q: Can ductile iron pipes be used for irrigation of golf courses?: Yes, ductile iron pipes can be used for irrigation of golf courses.

Q: What is the maximum allowable deflection for ductile iron pipes?: Industry standards and guidelines, like those from the American Water Works Association (AWWA) and the Ductile Iron Pipe Research Association (DIPRA), typically specify the maximum allowable deflection for ductile iron pipes. These standards state that the maximum allowable deflection should be a certain percentage of the pipe's outside diameter. AWWA C150/A21.50 and DIPRA's Technical Bulletin No. 10 explain that the maximum allowable deflection for ductile iron pipes can vary depending on factors such as pipe size, wall thickness, and soil conditions. However, a general rule is that the maximum allowable deflection should not exceed 3% of the pipe's outside diameter. It is important to keep in mind that going beyond the maximum allowable deflection can lead to potential structural problems and reduced performance of the ductile iron pipe. Therefore, it is crucial to follow the industry standards and guidelines to ensure the proper installation and functioning of ductile iron pipes.

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