The German standard DIN 16961 for thermoplastic pipes with profiled wall structure is looking back to a long and successfully history. The first edition had already been published in September 1977 and it was one of the first standards for plastic pipes. If we would have the chance to look into the old standard, we […]
An important update of DIN16961 is published Read Post »
Krah America Latina SA has faced the challenge of developing PE100 pressure pipes up to 10kg/cm2. Considering that the resulting stresses are proportional to the pressure load, we started by carrying out a finite element study on a DN800 NP8 pipe Method: The socket – spigot joint corresponds to a pipe with nominal diameter DN=
Design of electrofusion joints for PE100 pressure pipes Read Post »
Today it is still a reality that, despite the continuous developments in the technology of tangential extrusion on mandrels, some clients, engineers and contractors tend to prefer axially (conventional) extruded, solid wall PE pipes for the marine projects. They are probably not aware, that Krah can present many global successful projects where Krah Marine Pipes
{loadmodule mod_custom,All FAQ} This is the third part of our “Frequently Asked Questions” section. In every issue we will answer some of the most asked questions we get from potential customers and interested parties about the Krah Technology.Also feel free to send us some new ideas for our FAQ in he form below. We will
Powerful tool for take-away: Krah Pipes App To improve the know-how transfer from us to our customer we choose the way of a free app, so after half a year of further developments, we are proud to present our latest improved Krah-Pipe Calculation App. The app can run without an internet connection, so you are
LAGUNA KRAH HEROES, is new expansion team that recently joined the MAHARLIKA PILIPINAS BASKETBALL LEAGUE. Laguna Krah Heroes is team formed for Laguna province with Biñan City as the LGU Partner spearheaded by the most sports enthusiast, Vice Mayor Gel Alonte of Biñan City in Laguna. Laguna Krah Pipes team during a match Giving their
Laguna Krah Heroes Read Post »
Engineer Mr. David Yaloz at construction site Israel is known as the land of the Bible, but it is actually much more than that. Israel is a modern, developed country located along the Mediterranean Sea. Due to the long, hot and dry summers with very short rainy winters, water becomes one of the most important
Ashkelon Wastewater Project Read Post »
Krah pipes are often used for pressure applications, whether the requested pipe material is a standard High Density Polyethylene (HDPE) or Polyethylene reinforced with glass fibres (PE-GF). For the flow-characteristic and pressure loss the surface quality is essential, since the surface-roughness affects the friction between fluid and pipe wall. Polyethylene pipes (HDPE and PE-GF) provide
Hydraulic calculation of PE pressure pipes Read Post »
The Krah team installing the pipeline Krah Pipes Manila, Inc. has again made a landmark accomplishment in the installation of a DN/ID 1500mm diameter pipe for its client, SM Telabastagan, Pampanga. The project which Krah Pipes Manila Inc was able to forge is basically a 24 meter distance of cross drain pipes which ran across
Krah Pipes in Pampanga Read Post »
Jeneleen Lansangan Krah Pipes Manila, Inc. (KPMI) is one of the latest extension and additional part of Krah community in South – East Asia, particularly in the country with 7,107 islands and known as the pearl of the orient, the Philippines. KPMI was listed in the Philippine’s directory of corporations last September 2015 and
Introducing Jeneleen Lansangan Read Post »
Krah pipes, made of Polyethylene PE100 in typical black colour, provide a perfect weather and UV resistance. If a Polyethylene pipeline is planned for an application in exposed conditions the external loads and influences have to be considered for the design. Typical applications are:• Mining industry• Sewage and water pipelines• Hydropower plants (headrace, penstock)• Industrial
Krah Pipes in exposed conditions Read Post »
Overview of “Furniture city” Damietta Furniture City was established with an authorized capital that reaches 5 billion Egyptian Pounds, with a 521 million Egyptian Pound capital value and a 100% Egyptian capital contribution. Data of sewage and stormwater network: Network length: 4500 m Manholes number: 620 Manholes House connections: 180 (Inspection chamber) Pipe diamters: 180
Sewage and stormwater network Read Post »
Entrance building of Krah Misr. The total production area has 10.000 m² Every now and then Krah Group employees visit different Krah Pipes production plants. In April 2018 Alexander Krah went to visit the factory Krah Misr in Egypt.Having arrived in Cairo he is warmly welcomed by the owners at the airport. The owners and
Visiting a Krah Pipes Producer in Egypt Read Post »
Sinkhole in the United States, Source: Nationalgeographics, by Octavio Jones Introduction Anywhere in our world different kind of erosions happen which form our landscape – on the surface as well the subsurface. The most significant factor of erosion is water (beside wind, landslide and abrasion) which is causing a challenge in engineering problem. The ability
Sinkholes – a matter of water erosion Read Post »
Around 100 km from Stockholm you will find Västeras, a large city at Lake Mälaren, the third biggest lake in Sweden. Västeras is a big industrial city that was founded over 1000 years ago. In the past year they had some trouble with leakages in the sewer system. High rainfalls had led to full pipes
Sewage collection tank for sewer system Read Post »
Skyline of Jakarta 1. Basis The development respectively the renovation of waste water ischarge system is always associated with high investments and extensive civil engineering works. Beside the purchase costs for the pipelines itself, also high proportionate costs arise for the grounds works and the pipe installation. Especially in topographical flat Asian metropolitan areas like
Hydraulic dimensioning of sewage lines Read Post »
Rublevskaya water treatment station has been operating since pre-revolution times and still remains the main source of potable water for Moscow, Russia’s largest metropolis. Today there are plenty of new materials and technologies available for water supply and water disposal which can extend pipeline operating life by up to 50 years or more. Implementation is
Corsys Plus Pipes in reconstruction Read Post »
Krah Pipes re-used as Flower Containment System In today’s world recycling gets more and more important, as we have become aware of the fact that we only have this one planet and do need to be careful with it. But recycling is not always the best solution, sometimes a simple “down-grade” is enough as well.
Down-Grading or Recyling? Read Post »
KraussMaffei will have its Competence Forum 2018 on June 6th and 7th at their facility in Munich, Germany.During this forum, KraussMaffei will present their unique know-how in several plastic fields among others also extrusion technology. The Krah Group is since many years a very close partner of KraussMaffei in the field of large pipe production.We
Krah at KraussMaffei Competence Forum 2018 Read Post »
One of our german customers – Frank GmbH – produces large diameter pipes (up to DN/ID 3500) for waste water collection points in the course of the large construction site Stuttgart 21.In the videos you can see in which dimensions pipes can be used with Krah Pipe Production Technology. See also the article on www.frank-gmbh.de
Big projects, big pipes – Stuttgart 21 Read Post »
