Chinese Pipe Fittings, Tube Valves and Steel Flanges

T-Type Centrifugal Ductile Cast Iron Pipe

DN80-DN1200mm,ISO2531,BS En545,ISO4179,ISO8179,for water & gas transportation understand

Ductile Iron Pipe Features:
1) The pipes are produced with good straightness, wall thickness, remarkable mechanical prosperities and firmly sticking internal and external coating layer
2) Flexible push-in joint and rubber gasket are used resulting in convenient installation of pipelines

Centrifugal Casting T-Type  Ductile Cast Iron Pipes

Centrifugal Casting T-Type Ductile Cast Iron Pipes

3) The pipes are produced by standard ISO2531  and EN 545
4) The pipes are push-in joint type, external coating zinc + bitumen painting, internal lined the cement mortar
5) The gasket materials are the NR, NBR, EPDM, etc.

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 supplies K7, K8, K10, and K12 classes of pipes
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 pipe.

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 and fittings.
2) We produces liquid metal suited to manufacture . 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.

Process and testing:
1) Blast furnace (Analysis of raw materials test )
2) Mg treatment (Micro & chemical composition test)
3) Pipe spinning (Temperature test)
4) Heat treatment (Micro structure; Flattening test)
5) Zinc coating (Thickness testing)
6) Dimensional checks (Thickness & Dia. testing)
7) Hydraulic test (Pressure test)
8) Internal lining (Thickness testing)
9) External coating (Thickness test)

Main technical data for :

1) Product standard: ISO2531:1998, BS EN 545:2002
2) Class: K9
3) Type of joints: push-in flexible joint

K9 Thickness Ductile Iron Pipe Specification:

Nomminal
Diameter
(mm)
Outside
Diameter
(mm)
Wall
ThickNess
(mm)
(K9)
Approximate
Weight of Socket
Section
(kg)
Weight of Straight
Section kg/m
(K9)
Total Weight of
standard
Working Length
lenth kg(l=6000mm) (K9)
Number of
Pipes Per Mile
(pc)
Pipe Weight Per
Mile (Tons) (K9)
80 98 6.0 3.4 12.2 77 167 12.859
100 118 6.0 4.3 15.1 95 167 15.865
150 170 6.0 7.1 22.8 144 167 20.048
200 220 6.3 10.3 30.6 194 167 32.398
250 274 6.8 14.2 40.2 255 167 42.585
300 326 7.2 18.6 50.8 323 167 53.941
350 378 7.7 23.7 63.2 403 167 67.301
400 429 8.1 29.3 75.5 482 167 80.484
450 480 8.6 38.3 89.5 575 167 96.025
500 532 9.0 42.8 104.3 669 167 111.723
600 635 9.9 59.3 137.3 882 167 147.294
700 738 10.8 79.1 173.9 1123 167 187.541
800 842 11.7 102.6 215.2 1394 167 232.798
900 945 12.6 129.9 260.2 1691 167 282.397
1000 1048 13.5 161.3 309.3 2017 167 336.839
1200 1255 15.3 237.7 420.1 2758 167 460.586

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