Waterline Ductile Iron Cement Lined Pipe Dismantling Joint Type Tube

Basic Information
Place of Origin: CHINA
Certification: ISO2531,EN545/598,WRAS,SGS
Model Number: DN80-2600
Minimum Order Quantity: 10TONS
Packaging Details: bundled with steel belts or in bulk
Delivery Time: 30DAYS
Payment Terms: L/C, T/T
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Detail Information
Size: DN80-DN2000mm Material: GGG450-10 Or Ductile Iron
Head Code: Other Accessory: Hook And Lock
Usage: Waterline Casting Method: Centrifugal
High Light:

restrained joint pipe


ductile iron restrained joint

Product Description

Waterline Ductile Iron Cement Lined Steel Pipe Dismantling Joint Type Tube


Self-Restrained joint ductile iron pipe:

Restrained joint in which means provided to prevent separation of the assembled joint. All restrained joints shall be 
designed to be at least semi-flexible. Produce according to the customer’s requirement.


Allowable pressures of components with flanged joints
Pressure class Maximum allowable Allowable site test Allowable site test
PN operating pressure pressure pressure
bar bar bar bar
10 12 17 17
16 20 25 25
25 30 35 35
40 48 53 53
Table 3 — Allowable pressures for socketed fittings  
Nominal size Allowable operating Maximum allowable Allowable site test
  pressure operating pressure pressure
  bar bar bar
40 to 200 64 77 82
250 to 350 50 60 65
400 to 600 40 48 53
700 to 1400 30 36 41
1500 to 2600 25 30 35


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

Mechanical properties

a) Tensile strength: ≥420MPa

b) Yield strength: ≥300Mpa

c) Hardness: ≤230HB

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



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

2) Internal lining: cement mortar lining as per ISO4179

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

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

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

6) 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)



Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water and sewer lines. Ductile cast iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel. Ductile Iron Pipe is the most widely-used pipeline product in water supply and water drain/sewage projects.


Our advantages:

There are lots of qualified managers and technicians, and a well-trained team of after-sales service, which provides all services of manufacture, package, transportation and installation. We are looking forward to cooperating with friends from abroad and home creating a brighter future.


Contact Details

Phone Number : 86-371-53378091