Welcome to SYI Group

 

ductile iron pipe with cement lining-SYI Group 

 About Our ductile iron pipe with cement lining -SYI Group :

Dimensions in millimeters

	DN	DE1	Iron wall thickness,e, K9
	80	98	6
	100	118	6
	125	144	6
	150	170	6
	200	222	6.3
	250	274	6.8
	300	326	7.2
	350	378	7.7
	400	429	8.1
	450	480	8.6
	500	532	9
	600	635	9.9
	700	738	10.8
	800	842	11.7
	900	945	12.6
	1000	1048	13.5
	1100	1152	14.4
	1200	1255	15.3
	1400	1462	17.1
	1500	1565	18
	1600	1668	18.9
	1800	1875	20.7
	2000	2082	22.5
	2200	2288	24.3
	2400	2495	26.1
	2600	2702	27.9

 

1) A tolerance of + 1 mm applies.    For Other Class (K7,K8,K10,K12) and Other Joint Type (Restrained Joint), please consult us.

 

About SYI ductile iron pipe with cement lining- SYI Group :

• PRODUCT  INTRODUCTION

 

ductile iron pipe with cement lining-SYI Group

Centrifugally Cast Ductile Iron Pipe is a kind of pipe made from spherical graphite cast iron by centrifugal spinning process. The pipes, which can convey many fluid media such as water, oil and gas, are widely used in various pipeline projects for metallurgy, mine, water conservancy, petroleum and urban public service utility.

 

Possessing high strength, good toughness as steel and better corrosion resistance than steel, the ductile iron pipe is the ideal substitute for gray cast iron pipe and common steel pipe. In addition, the DI pipes are produced with good straightness, even wall thickness, high dimension accuracy, smooth surface finishing and remarkable mechanical properties, plus with firmly sticking internal & external coating layer. Flexible Push-in joint and rubber gasket are used resulting in convenient installation of pipelines.

 

By combining amazing ductility and high tensile strength to the well established corrosion resistance qualities of ductile iron, this easily handled pipe can be readily tapped, drilled or welded. Ductile Iron Pipes offer unsurpassed benefits for applications in water supply, sewerage and gas mains by their reputation by actual performance!

• ASSURED PERFORMANCE:

- Proof tested: Every piece of Ductile Iron Pipe must be hydrostatically tested according to standard requirements before application of lining or coating.

- Long Life: In over 1000 locations in the world cast iron mains are still in service over 100 years.

- Design: ISO/EN/AWWA/AS specifications provide a high factor of safety based on rated pressure plus surge allowance without damage to the pipes.

  Know more information,please contact us!

 

 

ductile iron pipe with cement lining-SYI Group

- Design Flexibility: Pipes will safely function over a wide range of operating pressure, trench loads and installation conditions. Standard design includes a generous factor of safety to protect against unknowns.

- Easier Handling: Ductile Iron Pipes can be more easily manoeuvered under and around existing underground obstructions, thereby eliminating unnecessary changes in line or grade.

Know more information,please contact us!

• PARISON OF PROPERTIES

Item	D.I. Pipe	G.I. Pipe	Steel Pipe	PVC Pipe	Asbestos Pipe
Tensile strength (N/mm2)	≥420	150-260	≥400	≥53	20-23
Bending strength  (N/mm2)	≥590	200-360	≥400	80-100	20-30
Elongation (%)	≥10 (DN40-1000)	-	≥18	50-150
Elasticity coefficient (N/mm2)	Approx. 16x104	Approx. 11x104	Approx. 16x104	Approx. 27-30x102	Approx. 21x103
Hardness(HB)	≤230	≤230	Approx. 140	R 115 Rockwell	35-40
Corrosion resistance after  90 days (g/cm2)	0.0090	0.0103	0.0273-0.0396		-
Poison's ration	0.28	0.25	0.3	0.37	0.18-0.25
Impact Value Kg. M/cm2	>0.713	<0.5	1.5	0.007-0.1
Specific Gravity	7.15	7.15	7.85	1.43	2.1
	1.0x10-5	1.0x10-5	1.1x10-5	6-8x10-5	0.6-0.8x10-5

• ANGULAR DEFLECTION  

When a small curve is required along the pipeline, adjustment can be easily made without using fittings owing to the flexible joints of the pipes. So, the pipeline with flexible joints can also wind with the change of the ground.

 

About Manufacture :

• MANUFACTURE

SYI has an annual supply capacity of 100,000 tons, and it is still developing all the time.

 

 

• STANDARD  

The ductile iron pipes are manufactured according to ISO 2531 (Ductile iron pipes, fittings and accessories for pressure pipelines); EN545 (Ductile iron pipes, fittings and accessories and their joints for water pipelines).EN598 (Ductile iron pipes, fittings, accessories and their joints for sewerage applications);

 

Cement mortar lining... ...

 We Are Certified !

 

More certification ... (Contact us!)