The Krah group offers a modern sewer pipe program with manholes, fittings, and safe pipe joint systems for the planning of sewer treatment plants.
Gravity Pipes made out of PE80 / PE100 and polypropylene can have inner diameters ranging from DN/ID 300 mm to DN/ID 5000 mm. The standard length of 6m enables easy transport, quick handling and less jointing.
Many landfill sites have been successfully equipped with profiled drain pipes and manholes.
Krahs developments have set new standards for soil and ground water protection. Drain shafts with control systems are available in diameters of up to DN/ID 5000 mm.
Fields of application spread from potable to industrial uses or also special applications. Pressure may range up to 10 or 16 bar.
For the construction and operation of such pipelines Krah pipes offer considerable advantages, such as the elasticity of the pipeline and therefore optimum adaptation to the area, low weight, secure and strong jointing technology and seawater resistance.
The pipe stiffness is exactly adapted to the respective requirements because the appropriate profiles are selected for every individual project.
These high demands are being strictly and consequently met by HAS-fitting. Suitable for a new installation as well as a later integration in an open construction, the house connection pipes and lateral pipes in diameters DN 150(OD 160 SDR 17,6) and DN 200 (OD 225 SDR17,6) can easily, quickly and economically be jointed to the main pipe out of PE.
This enables an economic manufacturing, stability and an uncomplicated handling.Basically the tanks are large-volume custom-designed tanks with a capacity of 1m³ to 150m³. The tanks are completely tailor made and can be extended easily even after they have been finished.