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Ductile pipe

Specifications: 

1)  The standard of pipe: ISO 2531, EN545 , EN598.

2)  Pipe class: K9, C40, C30, C25, etc.

3)  Pipe joint: push-on joint(Tyton joint), K type joint, self-restrained joint

4)  Effective length: in general, the pipe length is 6m for bulk shipment and  5.7m for container shipment.

5)  Internal lining: cement mortar lining as per ISO4179 

6)  Zinc coating: at least 130g/m2 as per ISO 8179 

7)  Bitumen painting: at least 70um as per ISO 8179 

8)  Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber ring as per ISO4633 

9)   DN 80 - 2,600 mm 

10)   High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time 

11)   Checked by automatic inspection equipment

12)  Chemical composition: (%)

a)  C: 3.5 - 4.0 

b)  Si: 1.9 - 2.6

c)  Mn:0.15 - 0.45

c)  P: <0.06

d)  S: <0.02

13) Mechanical properties

a)  Tensile strength: ≥420MPa 

b)  Yield strength: ≥300Mpa 

c)  Hardness: ≤230HB 

d)  Elongation%: DN80 - 1000 ≥10  DN1200 - 2200 ≥7

14)  Process and testing: 

a) Induction furnace and treated metal (Chemical analysis of raw material, spheroidizing & Nodularity) 

b) Casting (Visual check and weight check)

c) Heat treatment (Micro structure) 

d) Hydrostatic test (Pressure test) 

e) Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance) 

f) Zinc spraying (Thickness testing) 

g) Lining and coating (100% visual check, thickness testing randomly) 

i) Marking and packing (100% visual check)

15) The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc.

 

Packing: bundled with steel belts or in bulk

Shipment: in bulk or container


  • Advantages

Specifications: 

1)  The standard of pipe: ISO 2531, EN545 , EN598.

2)  Pipe class: K9, C40, C30, C25, etc.

3)  Pipe joint: push-on joint(Tyton joint), K type joint, self-restrained joint

4)  Effective length: in general, the pipe length is 6m for bulk shipment and  5.7m for container shipment.

5)  Internal lining: cement mortar lining as per ISO4179 

6)  Zinc coating: at least 130g/m2 as per ISO 8179 

7)  Bitumen painting: at least 70um as per ISO 8179 

8)  Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber ring as per ISO4633 

9)   DN 80 - 2,600 mm 

10)   High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time 

11)   Checked by automatic inspection equipment

12)  Chemical composition: (%)

a)  C: 3.5 - 4.0 

b)  Si: 1.9 - 2.6

c)  Mn:0.15 - 0.45

c)  P: <0.06

d)  S: <0.02

13) Mechanical properties

a)  Tensile strength: ≥420MPa 

b)  Yield strength: ≥300Mpa 

c)  Hardness: ≤230HB 

d)  Elongation%: DN80 - 1000 ≥10  DN1200 - 2200 ≥7

14)  Process and testing: 

a) Induction furnace and treated metal (Chemical analysis of raw material, spheroidizing & Nodularity) 

b) Casting (Visual check and weight check)

c) Heat treatment (Micro structure) 

d) Hydrostatic test (Pressure test) 

e) Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance) 

f) Zinc spraying (Thickness testing) 

g) Lining and coating (100% visual check, thickness testing randomly) 

i) Marking and packing (100% visual check)

15) The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc.

 

Packing: bundled with steel belts or in bulk

Shipment: in bulk or container


Applications

1.Ductile iron pipes for water conveyance: Product standards: BS EN545:2002, ISO2531:1998
1)    Pipes are supplied in standard length of 5.5/6.0m, short length pipes as per respective standards can be supplied.
2)    In addition to Class K9 pipes, we also supply K7, K8, K10 and K12 classes of pipe.
3)    The thickness can be determined by the formula e=K (0.5+0.001DN)
4)    PFA (allowable operating pressure) is the internal pressure, exclusive of surge, that a component can safely withstand in permanent service.

5)    PMA (allowable maximum operating pressure) is the maximum internal pressure, including surge, that a component can withstand for a relatively short duration, when either fixed above ground level or laid and back filled underground in order to measure the integrity and leak tightness of the pipek.

2. Ductile iron pipes for sewerage application:
Product standard: BS EN598:2002
Quality checks at every stage of manufacturing:
1) Strict selection of raw material is an indispensable requirement to produce quality ductile iron pipes and fittings.
2) We produces liquid metal suited to manufacture ductile iron pipes. The liquid metal is further processed in induction furnaces. It is then treated with magnesium for modularization and transferred to the centrifugal spun casting machines.
3) The pipes are heat treated, zinc coated, hydrostatically tested, tested, cement mortar lined and finished with a layer of bitumen coating.
4) The in process inspection and quality control at all points during the production cycle is strictly maintained and documented as ISO9001 quality systems.


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