Cement Lined Ductile Cast Iron Pipes K9, Ductile Iron Pipe for Water Supply1000mm

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Model NO.: K9
• Type: Cast Iron Pipes
• Usage: Water Supply
• Joint Type: Self Anchoring Joint
• Section Shape: Round
• Certification: ISO2531
• Shape: Round
• Customized: Customized
• Gasket Material: NBR
• Transport Package: Bulk Carrier
• Specification: 600*1400mm
• Trademark: Jintai
• Origin: China
• HS Code: 73030010
• Production Capacity: 10000

Product Description

Ductile Iron Pipe: The Foundation of Modern Water Infrastructure

1. Evolution from Cast Iron to DI Pipe
Ductile Iron Pipe (DI Pipe) represents a significant advancement over traditional cast iron pipe, offering superior mechanical properties for water supply pipe and sewage pipe applications. Developed in 1948, DI pipe revolutionized pipeline infrastructure by introducing nodular graphite iron with exceptional strength and flexibility.

2. Material Characteristics
The metallurgical structure of DI pipe provides:

• Tensile strength of 415 MPa (60,000 psi)

• Yield strength of 290 MPa (42,000 psi)

• 10% elongation capacity

• Impact value exceeding 10 Joules

3. Manufacturing Process
Modern centrifugally cast pipe production ensures:

• Precise dimensional tolerances (±1.5%)

• Uniform wall thickness

• Smooth internal surfaces

• Consistent mechanical properties

4. Corrosion Protection Systems
This corrosion resistant pipe features:

• Cement mortar lining (minimum 1.5mm)

• Zinc coating (≥130g/m²)

• Bituminous finish

• Optional polyethylene encasement

5. Performance Advantages
Compared to alternatives, DI pipe offers:

• 100+ year service life

• Superior hydraulic efficiency (C=140)

• Excellent load-bearing capacity

• Outstanding impact resistance

6. Water Supply Applications
As water supply pipe, DI pipe provides:

• Working pressures to 3.5 MPa (500 psi)

• Diameters from DN80 to DN2000

• Standard 6m lengths

• Various jointing options

7. Sewage System Performance
For sewage pipe applications, DI pipe demonstrates:

• Exceptional corrosion resistance

• Superior abrasion resistance

• Watertight joint systems

• Long-term structural stability

8. Municipal Infrastructure
In municipal water pipe networks, DI pipe delivers:

• Lowest life cycle costs

• Minimal maintenance requirements

• Excellent seismic performance

• Full recyclability

9. Installation Advantages
This high strength pipe enables:

• Trenchless installation methods

• Direct tapping under pressure

• Flexible jointing systems

• Adaptation to difficult terrain

10. Global Standards Compliance
DI pipe meets international standards including:

• ISO 2531

• EN 545/598

• AWWA C151

• BS EN 545

11. Sustainability Features
Modern DI pipe production emphasizes:

• 95% recycled content

• Energy-efficient manufacturing

• Zero wastewater discharge

• Reduced carbon footprint

12. Future Developments
Emerging technologies include:

• Smart pipe systems

• Advanced lining materials

• Robotic inspection

• AI-assisted monitoring

13. Economic Benefits
While initial costs are higher, DI pipe offers:

• 30% lower lifetime costs than PVC

• 40% savings versus concrete

• 50% advantage over steel

14. Technical Comparison

Parameter	DI Pipe	Cast Iron	PVC	Steel
Tensile Strength (MPa)	415	150	50	485
Pressure Rating (MPa)	3.5	2.5	1.0	Varies
Impact Resistance (J)	10+	2	6	8
Corrosion Resistance	Excellent	Good	Excellent	Poor
Service Life (years)	100+	50-70	50-75	30-50

15. Conclusion
As the backbone of modern pipeline infrastructure, ductile iron pipe combines proven performance with continuous innovation. Its unique combination of strength, durability, and corrosion resistance ensures DI pipe remains the preferred choice for water supply pipe and sewage pipe systems worldwide. The advanced centrifugally cast pipe manufacturing process guarantees consistent quality, while ongoing technological developments promise even greater performance for municipal water pipe networks in the future.

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High-quality Ductile iron Pipe Parameters.
Specification	K7 Wall Thickness/mm		K8 Wall Thickness/mm		K9 Wall Thickness/mm		Theoretical Weight/Ton
	Nominal Wall Thickness	Minimum Wall Thickness	Nominal Wall Thickness	Minimum Wall Thickness	Nominal Wall Thickness	Minimum Wall Thickness
DN80	/	/	/	/	6	4.7	0.077
DN100	4.2	2.9	4.8	3.5	6	4.7	0.095
DN150	4.55	3.25	5.2	3.9	6	4.7	0.144
DN200	4.9	3.6	6.5	4.3	6.3	4.8	0.194
DN250	5.25	3.95	6	4.7	6.8	5.25	0.255
DN300	5.6	4.3	6.4	4.8	7.2	5.6	0.323
DN350	5.95	4.65	6.8	5.15	7.7	6.05	0.403
DN400	6.3	4.6	7.2	5.5	8.1	6.4	0.482
DN450	6.65	4.9	7.6	5.85	8.6	6.85	0.577
DN500	7	5.2	8	6.2	9	7.2	0.669
DN600	7.7	5.8	8.8	6.9	9.9	8	0.882
DN700	8.4	6.4	9.4	7.6	10.8	8.8	1.123
DN800	9.1	7	10.4	8.3	11.7	9.6	1.394
DN900	/	/	11.2	9	12.6	10.4	1.691
DN1000	/	/	12	9.7	13.5	11.2	2.017
DN1200	/	/	13.6	11.1	15.3	12.8	2.758
DN1400	/	/	15.2	12.5	17.1	14.4	3.669
DN1500	/	/	16	13.2	18	15.2	4.175
DN1600	/	/	16.8	13.9	18.9	16	4.668
DN1800	/	/	18.4	15.3	20.7	17.6	5.803
DN2000	/	/	20	16.7	22.5	19.2	7.043
DN2200	/	/	21.6	18.1	24.3	20.8	8.332
DN2400	/	/	23.2	20.3	26.1	22.4	9.822
DN2600	/	/	24.8	20.9	27.9	24	11.392
K7, K8, and K9 are all calculated based on the same theoretical weight.

 

Pressure - Bearing Performance Parameters of Ductile Iron Pipes
DN	DE(mm)	Pressure Rating	Radial Rigidity (KN/M²)	Nominal Wall Thickness (mm)	PFA MPA	PAM MPA	PEA MPA
DN80	98	C40	856	4.4	4.0	4.8	5.3
DN100	118	C40	481	4.4	4.0	4.8	5.3
DN125	144	C40	271	4.5	4.0	4.8	5.3
DN150	170	C40	163	4.5	4.0	4.8	5.3
DN200	222	C40	84	4.7	4.0	4.8	5.3
DN250	176	C30	52	4.9b	3.0	3.6	4.1
DN300	326	C30	34	5.1	3.0	3.6	4.1
DN350	378	C30	44	6.3b	3.0	3.6	4.1
DN400	429	C25	34	6.5b	3.0	3.6	4.1
DN450	480	C25	23	6.5b	2.5	3.0	3.5
DN500	532	C25	17	6.5	2.5	3.0	3.5
DN600	635	C25	17	7.6b	2.5	3.0	3.5
DN700	738	C25	17	8.8b	2.5	3.0	3.5
DN800	842	C25	15	9.6	2.5	3.0	3.5
DN900	945	C25	15	10.6	2.5	3.0	3.5
DN1000	1048	C25	14	11.6	2.5	3.0	3.5
DN1100	1152	C25	14	12.6	2.5	3.0	3.5
DN1200	1255	C25	14	13.6	2.5	3.0	3.5
DN1400	1462	C25	14	15.7	2.5	3.0	3.5
DN1500	1565	C25	14	16.7	2.5	3.0	3.5
DN1600	1668	C25	13	17.7	2.5	3.0	3.5
DN1800	1785	C25	13	19.7	2.5	3.0	3.5
DN2000	2082	C25	13	21.8	2.5	3.0	3.5
DN2200	2288	C25	13	23.8	2.5	3.0	3.5
DN2400	2495	C25	13	25.8	2.5	3.0	3.5
DN2600	2702	C25	13	27.9	2.5	3.0	3.5
DN2800	2908	C25	13	29.9	2.5	3.0	3.5
DN3000	3115	C25	13	31.9	2.5	3.0	3.5

Q1: Are you trading company or manufacturer ?
A1: We are factory.

Q2:Can I go to your factory to visit?
A2:Of course, we welcome customers from all over the world to visit our factory.

Q3: How long is your delivery time?
A3: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.

Q4:What is the advantage about your company?
A4:Our company has professional team and professional production line.

Q5: The logo and the color can be customized?
A5: Yes, we welcome you to sample custom

Q6: Any other good service your company can provide?
A6:Yes,we can provide good after-sale and fast delivery.

Q7:What product information do I need to provide?
A7:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q8:Does the product have quality inspection before loading?
A8:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.
 

Factory Introduction
We are a specialized ductile iron pipe manufacturing factory based in Shanxi, China. With a rich heritage of over 20 years in this industry, we have established ourselves as a reliable and experienced player in the global market.
Our ductile iron pipes have found their way to numerous countries across the globe. This wide - reaching export network is a testament to the trust that our international customers place in our products. The quality of our pipes has been recognized and praised by various sectors. We adhere to strict international quality standards, and our production facilities are equipped with state - of - the - art technology to ensure precision and consistency.
Each batch of our products undergoes rigorous quality control checks. We conduct comprehensive tests on factors such as pipe strength, pressure - bearing capacity, and corrosion resistance. This meticulous approach to quality control has earned us a reputation for delivering products that are not only durable but also perform optimally in diverse applications, whether it's for water supply, gas transmission, or other infrastructure projects.