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ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe

  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
  • ISO 2531,EN 545,EN 598 Self-restrained Joint/mechanical joint Ductile Iron Pipe
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Product Description

mechanical joint K-Type Ductile Iron Pipe  The mechanical joint is a bolted joint utilizing a ductile iron gland and mechanical joint gasket. The mechanical joint is recommended for water service where many connections are required. All components of the mechanical joint are interchangeable. The spigot end of mechanical joint pipe has the same outside diameter as push-on joint pipe. As a result, it can be fitted into such joints in the field by beveling the outside edge. All of the accessories (glands and fasteners) are supplied with each joint.


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Product Type: Mechanical (K-Type) Joint

Weight of K Type joint Ductile Iron Pipes (K9 class standard effective length 8m)

Nominal Diameter
DN(mm)
Barrel Socket
(kg)
Total Weight
(kg)
DE
(mm)
e
(mm)
Weight
(kg/m)
6m 8m
1000 1048 13.5 309.3 146.6 2002 2621
1200 1255 15.3 420.1 201 2722 3562
1400 1462 17.1 547.2 265.8 3549 4643
1600 1668 18.9 690.3 375.4 4517 5898
1800 1875 20.7 850.1 490.6 5591 7291
2000 2082 22.5 1026.3 626.4 6784 8837
2200 2288 24.3 1218.3 784.2 8094 10531
2400 2495 26.1 1427.2 966.2 9529 12384
2600 2702 27.9 1652.4 1173.7 11088 14393


(DN100-1600mm 6m,DN1800-2600mm 8m)Permissible Defletion Angles

Nominal Diameter
DN(mm)
Allowable Angles of Deflection at Installation work
T-TYPE K-TYPE
100 5°00′ 5°00′
125 5°00′ 5°00′
150 5°00′ 5°00′
200 5°00′ 5°00′
250 4°00′ 5°00′
300 4°00′ 5°00′
350 4°00′ 4°00′
400 3°00′ 4°00′
450 3°00′ 3°00′
500 3°00′ 3°00′
600 3°00′ 2°00′
700 2°00′ 2°00′
800 2°00′ 2°00′
900 2°00′ 2°00′
1000 2°00′ 1°00′
1200 2°00′ 1°00′
1400 2°00′ 1°00′
1600 2°00′ 1°00′
1800 2°00′ 1°00′
2000 2°00′ 1°00′
2200 2°00′ 1°00′
2400 2°00′ 1°00′
2600 2°00′ 1°00′

    

 

SELF ANCHORED RESTRAINED JOINTS
 

Self-restrained Type is a push-in self anchored joint. The principle of joint anchoring consists in transmitting the axial forces from one pipeline to the following one, thus ensuring that the joint does not come apart. 
Ductile Iron pipelines are traditionally associated with the push fit socket & spigot joint. Within the pipeline there will generally be locations where the design results in unbalanced hydrostatic or hydrodynamic forces (thrust) that if left unanchored would result in socket spigot separation. In basic terms the pipeline is subject to such forces where there are changes in direction, bends, tees, reducers, blank ends etc at these points a choice of external methods of anchorage ie concrete thrust blocks or one of the Self Anchoring Joint Systems may be used to resist the joint separation.

The application of self-restrained joints is of particular interest where congested conditions preclude concrete anchor block constructions or in poorly cohesive soils.Self-restrained joints combine the advantages of flexible joint pipes and welded joint pipes. 

Standard wall thickness of Self-restrained Joint Ductile Iron Pipe

Nominal Diameter

Wall Thickness(mm)

DN(mm)

Pipe

Fittings

Class C

K8

K9

K10

K12

K12

K14

80

4.4

6

6.0

7

8.1

100

4.4

6.0

7.2

8.4

125

4.5

6.3

7.5

8.8

150

4.5

6.3

7.8

9.1

200

4.7

6.3

8.4

9.8

250

5.5

6.8

7.5

9

9

10.5

300

6.2

6.4

7.2

8

9.6

9.6

11.2

350

6.3

6.8

7.7

8.5

10.2

10.2

11.9

400

6.5

7.2

8.1

9

10.8

10.8

12.6

450

6.9

7.6

8.6

9.5

11.4

11.4

13.3

500

7.5

8

9

10

12

12

14

600

8.7

8.8

9.9

11

13.2

13.2

15.4

700

8.6

9.6

10.8

12

14.4

14.4

16.8

800

9.6

10.4

11.7

13

15.6

15.6

18.2

900

11.6

11.2

12.6

14

16.8

16.8

19.6

1000

12.6

12

13.5

15

18

18

21

1200

13.6

13.6

15.3

17

20.4

20.4

22.8

1400

15.7

15.2

17.1

19

22.8

22.8

26.6

1500

16.7

16

18

20

24

24

31

1600

17.7

16.8

18.9

21

25.2

25.2

29.4

1800

19.7

18.4

20.7

23

27.6

27.6

32.2

2000

21.8

20

22.5

25

30

30

35

Specifications︰Specification

ISO 2531 Ductile iron pipes, fittings, accessories and their joints for water or gas application

EN 545, Ductile iron, pipes, fittings, accessories and their joints for water pipelines -Requirements and test methods

EN 598, Ductile iron pipes, fittings, accessories and their joints for sewerage application - Requirements and test methods

EN 877, Cast iron pipes and fittings, their joints and accessories for the evacuation of water from buildings - Requirements, test methods and quality assurance

EN 969, Ductile iron pipes, fittings accessories and their joints for gas pipelines - Requirements and test methods

EN 12842, Ductile iron fittings for PVC-U or PE piping systems - Requirements and test methods

BS 4772-1988 Specification for ductile iron pipes and fittings

ISO 7186-2011 Ductile iron products for sewerage applications
ISO8179 standard for zinc spraying
Coating with metallic zinc which contains zinc at least 99.99%. The thickness of zinc coating is not less than 130g/m2
ISO 4179 standard for cement mortar lining
AS/NZS 2280 Ductile Iron Pipes and Fittings


Main technical characteristics: flange joints are rigid joints. Flanges are fixed on either ends of barrel pipe piece. This type of joint can be made in Ductile Iron pipes in three different manufacturing processes. They are:

As Cast flanged pipes: In As Cast flanged pipes the ductile iron pipes with flanges are cast in foundries with integrally cast flanges on them. These flange pipes are normally of very small length say 1 to 1.5 m. They are heavier to handle and one may have to use many pipes for vertical lift and as much extra bolts, nuts etc. This type flange pipes are used for very small lengths.
Welded on flanged pipes: In Welded on flanged pipes the flanges are welded on to the ends of the pipe barrels.
Screwed on flanged pipes: In screwed on flanged pipes both flanges and barrels of DI pipe are provided with female and male threads respectively. The flanges are threaded over the DI pipe barrel.
The jointing of the two flanged end pipes is done by placing gaskets in between the flanges and tightening the flanges with bolts, nuts and washers.

Internal linings:

Cement Mortar Lining - is a dense homogeneous layer covering the entire inner surface of the trunk of the pipe. The mixture of cement mortar contains cement, sand and water. Cement can be of several types depending on the type and chemical composition of the fluid pumped in the pipeline: ordinary portland cement (OPC), sulphate resistant cement (SRC), blast furnace slag cement (BFSC), high alumina cement (HAC). At the same time, the water used in the cement-sand mixture corresponds to the standard set for drinking water. The thickness of the cement-sand coating is for pipes DN40-300 - 4,00 mm, DN350-600 - 5,00 mm, DN700-1200 - 6,00 mm, DN1400-2000 - 9,00 mm, DN2200 - 12,00 mm.;
Epoxy Seal Coat;
Bituminous Seal Coat.
Outside coatings:

Zinc Coating (130 gm/m²² or 400 gm/m²);
Alloy of Zinc and Aluminum with a minimum mass of 400 gm/m².
Finishing protection layer:

Blue epoxy (from 70 to 100 micron);
Redepoxy;
Black bitumen
Special coating:

External and Internal Polyurethane Coating (DN 100 - DN 1600)
International standards: ISO2531, ISO7186, BS EN545, BS EN598, ISO:9001, ISO:14001.

Competitive advantages:

Fast execution of the installation and possibility of reducing the number of fittings;
Excellent behavior in case of earthquake;
Low roughness that determines minimum pressure losses Resistance to corrosion by corrosive waters;
Resistance to corrosion by aggressive soils in most of the cases.
IMPORTANT! The technical specialists of our company are always ready to help you make the right choice of Ductile Iron Pipes taking into account the characteristics of the pumped medium, the working pressure in the system, the specifics of the soil for laying pipes and a number of other important factors that will ensure the durability of the pipeline system built
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