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HDPE/PP Spiral Profiled Pipe
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HDPE/PP Spiral Profiled Pipe

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HDPE/PP Profile Spiral Pipe

HDPE/PP profiled spiral wounded pipe systems with various stiffness classes which are designed for utility and industrial applications. It is made from High Density Polyethylene (HDPE) or PP to manufacture these pipes. The diameter of HDPE/PP Profile pipe is from DN/ID300mm to DN/ID 4000mm. The ring stiffness is SN2, SN4, SN8, SN16 or according to customer requirements.


ADVANTAGES of HDPE/PP Krah Pipe

· Pipe Weight

The extremely low weight of profiled pipe allows a simpler and faster installation of the pipes, as in most cases no heavy machinery is necessary for the installation and handling of the HDPE/PP profile pipes. Most of the handling can be done by an excavator on-site.

· Enviromental and long life time

 Low investment costs and a service life over 100 years reduce the operating costs.

· Jointing

Profiled pipe do not require large butt welding machines as they are joined either by rubber ring joint or electro-fusion.

Jointing of HDPE/PP Profiled Pipe

Jointing of Krah spiral profile Pipe


· Installation

The installation time is faster than other materials as the standard pipe lengths are between 5.5 to 6 meters long. Fewer lifts mean unloading and loading the pipes into position saves even more time.


Installation of Jointing of HDPE Krah Profile Pipe  Installation of Krah Profile Pipe


· Transportation

As it is possible to nest these profile spiral pipes, transportation costs can be reduced.


· Chemical and Corrosion Resistance

Profiled pipe and fittings are made of the same material and jointed to one homogenous piece. Not even connections between the pieces pose a weak spot in the piping as they are joined by a rubber ring or electro-fusion water tight joint.


· Homogenous Piping

HDPE/PP profiled pipe and fittings are made of the same material and jointed to one homogenous piece. Not even connections between the pieces pose a weak spot in the piping as they are joined by a rubber ring or electro-fusion water tight joint.


· Effective Roughness

Effective Roughness of Krah pipes

Due to its low roughness as shown in the above graph there is almost no accumulation on the pipe bottom and profiled pipe have the ability to self purify. Low roughness has an important economic advantage as maintenance expenditure is kept to a minimum. Due to the low roughness the hydraulic properties are improved and smaller diameters are required compared to conventional pipe materials with the same flow rate. profiled pipe convey flows up to 17% greater than concrete pipes, and up to 60%better than corrugated steel pipes.


· Abrasion Resistant

Abrasion Resistant

Polyethylene pipes are among the most abrasion resistant pipes. This has been tested in the Darmstadt procedure and the results are shown in the diagram above and support the quality of polyethylene and polypropylene pipes.


· UV-Resistant

Commonly most natural materials and other plastics are degraded by weathering effects, particularly by the combined impact of short-wave ultraviolet radiation in sunlight and atmospheric oxygen. Black polyethylene sprial pipes are permanently resistant to atmospheric corrosion and UV radiation, as the polyethylene used contains carbon black which acts as both a pigment and an ultra violet stabiliser. Thus the pipes can be used and stored outside without the pipe material being damaged.


· Resistant to Micro Organisms

Polyethylene is not nutrient media for bacteria, fungi and spores, so that the material is resistant to all forms of microbial attack as well as both sulphurous acid and sulphates.


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E-mail : jixie@eaglegroup.cn

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