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International Krah Pipe Producer
(K)DR 700
Extrusion Technology for Profiled Plastic Pipes up to DN/ID 4000 mm
Description
Main Features
- Pipe diameters of DN/ID 300 mm up to DN/ID 4000 mm,
acc. to metric system, in steps of 100 mm up to a length of 6 m - Material: all polyolefines; can mix 5 components before extrusion process
- Application: water pressure pipe systems, drainage and sewage systems (upgrade kit for KDR needed), Industrial pipe systems
- Pressure pipe production: 700 kg/h (nominal), max. output is 1000 kg/h;
according to ISO/CD 29561 and ASTM F 2720-08 up to 10 (20) bar - Gravity pipe production: 700 kg/h (nominal), max. output is 1000 kg/h,
according to DIN 16961 and EN 13476 all stiffness classes up to SN 8
(KDR upgrade needed)
KPPS (Krah Pressure Pipe System)
The DR Series is designed to produce, in the most economical and eco-friendly way,
pipes and fittings in diameters ranging from DN/ID 300 mm to DN/ID 4000 mm and in
lengths from 1m up to 6 m and on special request even longer. The pipes are designed
for working pressure up to 16 bar. The pipe material is a compound of polyethylene,
fibres and bonding material.
The material mixture has an MRS value of 20 N/mm2, compared to pure PE 80 with an MRS value of 8 N/mm2 and PE 100 with
an MRS of 10 N/mm2. The MRS value stands in linear relation to the pipe wall thickness. This signifies that by using the abovementioned
mixture the wall thickness can be reduced by approx. 48 % compared to pure PE 100 and about 55 % compared to
PE 80 supposing the same pressure resistance.
Extrusion unit
The main components are the main single screw extruder for the virgin polythelyne
and the co-rotating twin screw extruder with integrated single screw extruder
to process the compound materials, with a nominal output of 1000 kg/h.
KDR upgrade kit
With this additional equipment it is possible to manufacture structured wall
pipes according to DIN 16961 and DIN EN 13476.
These low weight pipes are mainly suitable for the non- or low working pressure
application like drainage and sewage systems including all kinds of fittings like
bends, manholes, branches etc.
Technical Information
| Technology | Krah Helical Extrusion |
| Material |
Homogenous polyethylene fiber reinforced (MRS20), Polyethylene (different grades) and Polypropylene (different grades) |
| Output | 700 kg/h |
| Application |
Pressure Application: working pressure up to 10 bar, test pressure 15 bar,(Drainage, Storm drain, Sewage, Storage, Irrigation systems) |
| Diameter |
DN/ID 300 – 4000 mm |
| Pipe Length |
1m–6m (Special length on request) |
| Place requirement | 20 x 30 m |
| Output twin screw extruder | 1000 kg/h |
| Electrical values (Standard) | 400 V, 50 Hz, 1000 A (750 kVA) |
Downloads
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Flyer DR 700
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DR applications
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DR Serie
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