The Krah pipe can be provided in the complete range of diameters and stiffness classes but also fittings, manholes and other components are deliverable to accomplish the mission of a homogenous and reliable pipe system.
All fittings are fabricated from pipes of the type VW or SQ. Generally the fittings are designed corresponding to the required stiffnesses and in consideration of the welding factors. Every fitting can have any kind of pipe end and can be assembled with the existing pipe system with any jointing technique.
All pipe end dimensions fulfill the requirements of the standard EN 14376, like the minimum lengths and stiffnesses. The standard spigot length (Ls) is 140 mm and the standard socket length (Lm) is 140 mm. All fittings are fabricated out of pipes (mainly solid wall pipes) with an equivalent stiffness.
Branches can be manufactured and delivered in every type and form. The angle can be adapted individually from 15° to 90° as well as the ends and the respective segment lengths.
Bends can be manufactured and segmented in different angles and the related radius of the bend to pipe diameter can be selected independently.
In the table the standard bend angles are mentioned, according to DIN 16961 - other diameters on request. Basically every angle can be produced.
Reductions can be made both centric and eccentric so that the reductions will always meet the requirements. For standard reductions the maximum difference in diameter is 200 mm, other differences on request.
House connections can be installed at any time using our transition sleeves. The house connection can be built onto the profile pipe at any place and any weather condition. All usual dimensions for house connection lines are available. The assembly can be carried out by experts on site. The standard diameters are DN/OD160 mm and DN/ OD 200 mm, but other dimensions are possible.
Following any other kind of pipe system as, for example, corrugated, clay and PVC pipes can be jointed.
In order to lead Krah pipes through walls, e.g. in sewage plants or concrete shafts, we recommend our puddle flanges which can be flush mounted in concrete. The tightness is secured by an anchor and a ring made of EPDM.