Zinc Spraying Restrained Joint Ductile Iron Pipe K9 Class Cement
Lining
Restrained joint ductile iron pipe overview:
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.
The diametral deflection, in percent, is one hundred times the
vertical pipe deflection, in millimetres, divided by the initial
pipe external diameter, DE, in millimetres. The values of allowable
diametral deflection given apply to cement-lined C20, C25, C30,
C40, C50, C64 and C100 pipes; they provide joint integrity as well
as safety against overstressing of the pipe wall and excessive
cracking of the lining. The maximum allowable deflection of
cement-mortar-lined pipe is 4 %. National standards and
manufacturers’ handbooks may introduce more stringent limitations,
such as 3 %. The maximum allowable deflection for other types of
linings can be calculated in accordance with ISO 10803, The
manufacturer controls the quality of his products during their
manufacture by a system of process control in order to comply with
the technical requirements of this International Standard.It is
recommended that the manufacturer’s quality system conform to ISO
9001, If certification to ISO 9001 is involved, it is recommended
that the certification body be accredited to the relevant
International Standard, as applicable.
Specifications:
1) The standard of pipe: ISO 2531, EN545 , EN598.
2) Pipe class: K9, C40, C30, C25, etc.
3) High strength, lighter than gray iron, good corrosion
resistance, no furring, small flow resistance, easy fixing, long
life time
4) Checked by automatic inspection equipment
5) 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
Packing: bundled with steel belts or in bulk
Shipment: in bulk or container
♦ Pressure Class(C)Ductile Iron Pipes
Relating to their operating pressures as verified by all the
performance tests described.
DN | DE mm | Min thickness e mm |
| Nominal | Limit
deviation | Class
20 | Class
25 | Class
30 | Class
40 | Class
50 | Class
64 | Class
100 |
80 | 98 | + 1/ - 2,7 | | | | 3,0 | 3,5 | 4,0 | 4,7 |
100 | 118 | + 1/ - 2,8 | | | | 3,0 | 3,5 | 4,0 | 4,7 |
125 | 144 | + 1/ - 2,8 | | | | 3,0 | 3,5 | 4,0 | 5,0 |
150 | 170 | + 1/ - 2,9 | | | | 3,0 | 3,5 | 4,0 | 5,9 |
200 | 222 | + 1/ - 3,0 | | | | 3,1 | 3,9 | 5,0 | 7,7 |
250 | 274 | + 1/ - 3,1 | | | | 3,9 | 4,8 | 6,1 | 9,5 |
300 | 326 | + 1/ - 3,3 | | | | 4,6 | 5,7 | 7,3 | 11,2 |
350 | 378 | + 1/ - 3,4 | | | 4.7 | 5,3 | 6,6 | 8,5 | 13,0 |
400 | 429 | + 1/ - 3,5 | | | 4.8 | 6,0 | 7,5 | 9,6 | 14,8 |
450 | 480 | + 1/ - 3,6 | | | 5.1 | 6,8 | 8,4 | 10,7 | 16,6 |
500 | 532 | + 1/ - 3,8 | | | 5.6 | 7,5 | 9,3 | 11,9 | 18,3 |
600 | 635 | + 1/ - 4,0 | | | 6.7 | 8,9 | 11,1 | 14,2 | 21,9 |
700 | 738 | + 1/ - 4,3 | | 6,8 | 7.8 | 10,4 | 13,0 | 16,5 | |
800 | 842 | + 1/ - 4,5 | | 7,5 | 8.9 | 11,9 | 14,8 | 18,8 | |
900 | 945 | + 1/ - 4,8 | | 8,4 | 10.0 | 13,3 | 16,6 | | |
1 000 | 1 048 | + 1/ - 5,0 | | 9,3 | 11.1 | 14,8 | 18,4 | | |
1 100 | 1 152 | + 1/ - 6,0 | 8,2 | 10,2 | 12.2 | 16,2 | 20,2 | | |
1 200 | 1 255 | + 1/ - 5,8 | 8,9 | 11,1 | 13.3 | 17,7 | 22,0 | | |
1 400 | 1 462 | + 1/ - 6,6 | 10,4 | 12,9 | 15.5 | | | | |
1 500 | 1 565 | + 1/ - 7,0 | 11,1 | 13,9 | 16.6 | | | | |
1 600 | 1 668 | + 1/ - 7,4 | 11,9 | 14,8 | 17.7 | | | | |
Usage:
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.
