Our Krah Pipe

Tianjin Dingrunda Group Co.,Ltd Specializing in the production of PE pipes, PVC pipes and related accessories

Products

Krah Pipe

Category: HDPE Krah Pipe
Product name:Sn4 Sn8 Sn10 Sn12.5 HDPE Winding Structure Wall Plastic Krah Pipe
Working pressure: PN4-PN12.5
Size: id300 to id40000
Standard: BS EN 13476

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Krah pipe is a kind of special-shaped pipe with smooth inner wall and spiral strengthening outer wall. Spigot and socket Krah pipe normally divided into B type and C type, which are green and flexible, use high density polyethylene as raw material, produced by filament winding process in the states of hot-melt, gradually cooled by means of rolling air cooling and spraying in thermal state and before demolding. It is available for a wide range of diameters from 300 mm to 3000 mm, can be connected by socket-joint.Krah pipe has all the features: high strength, light weight, corrosion resistance, no leakage, good sealing and easy construction etc., be widely used in drainage projects.

Nominal OD
(dn)
Min. mean diameter
The wall thickness of the min. layer pressure
Min. inner wall thickness
mm
mm
mm
mm
200
196
1.5
1.7
300
294
1.7
2
400
392
2.3
2.5
500
490
3
3
600
588
3.5
3.5
700
673
4.1
4
800
785
4.5
4.5
900
885
5
5
1000
985
5
5
1100
1085
5
5
1200
1185
5
5
1300
1285
6
5
1400
1385
6
5
1500
1485
6
5
1600
1585
6
5
1700
1685
6
5
1800
1785
6
5
1900
1885
6
5
2000
1985
6
6
2100
2085
6
6
2200
2185
7
7
2300
2285
8
8
2400
2385
9
9
2500
2485
10
10
2600
2585
10
10
2700
2685
12
12
2800
2785
12
12
2900
2885
14
14
3000
2985
14
14

Item
Product Parameter
Ring stiffness (KN/m 2 )
SN4 ≥ 4, SN8 ≥ 8, SN16 ≥ 16
Impact performance
TRL ≤ 10%
Ring flexibility
No delamination, no cracking, no buckling deformation, no dents, no bulges
Creep rate
≤4
Tensile strength of Seams
DN/ID ≤ 300
400 ≤ DN/ID ≤ 500
600 ≤ DN/ID ≤ 700
DN/ID ≥ 800
The Minimum endurable tensile force (KN)
≥ 380
≥ 510
≥ 760
≥ 1020
Oven test
No delamination, no cracking on the seams

Installation Instructions
 

Our unmatched expertise enables us to serve our clients with utmost accuracy than ourindustry competitors. With more than 20 years’ hardwork, we have established ourselves asa reliable and worthy supplier of plastic pipes and fittings. We ensure that the quality of ourrange meets the requirements of our clients. Our range finds applications in irrigation, watertransportation, drainage, dredging, sand&mud suction, gas transportation, geothermal, com-munication cable protection and construction.

We cater basically to European countries, North America countries, Sout America coun-tries, Oceania countries, Asian countries, Middle East, African countries and supply all overChina under the able guidance of our company’s long-term planning strategy and view ofhonest and trustworthy value. Welcome customers to visit our factory, and go forward hand inhand with us!

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