General: Since some years helical extruded pipes made of PE-GF are used in the market for pressure application.Worldwide many projects have been realized in various diameters and for pressure applications up to 16 bar. The pipes are produced by the Krah Comtruder®-Technology, what guarantees a homogenously distribution of the chopped glass-fibers and the coupling-agent in

 … was not the only reason for the English Polypipe Group to purchase the Krah Compounder Concept.  Since many years Krah is with the ComTruder® involved in the inline compounding technology. Until today the system was used to produce and to extrude a compound based on PE/PP with glass-fiber or Calcium Carbonate as a part

This essay focuses on three central questions: What are the most common damages happening to pipes in waste water systems? By which factors are such damages caused? Which material is especially weak or strong in resistance against certain damages? The advantages of pipe-materials and the needs of a proper sewage system are well known. Less

Krah Chile is using Krah PE-GF Pressure Pipe Technology since 2009. The installed Krah KDR 700 is able to produce pressure pipes with standard PE100 or with PE-GF200. Since beginning Krah Chile delivered their pressure pipes for many applications. One examplary project is described below: Krah Chile produced more than 1300 meter PE-GF-pressure pipes in

Pressure Test DN/ID 1700, SDR 26, Design pressure PN 6 General:Pressure pipes made of Polyethylene are successfully used since the 50ths of the last century. In more than 60 years the material has developed significantly in mechanical, thermal and physical characteristics. Mostly used in the pressure market is the pipe grade PE100 with a long

In this year 2013 a new record was made in Lima, Peru. Polyethylene pipes DN/ID 3000 were used for a deep water outfall pipeline. The polyethylene pipes were produced according to the Krah-Technology in Spain by PPA&Krah, Vitoria. PPA&Krah had already a lot of successful installed large outfall pipelines in the Mediterranean Sea and Atlantic

Earlier this year, pipe/tube winding equipment manufacturer PPA & Krah supplied polyethylene pipes DN/ID 3000 for a deep water outfall pipeline in Lima, Peru. Krah said that previously the company had successfully installed large outfall pipelines in the Mediterranean Sea and Atlantic Ocean, but that one of the challenges in this project was to open

A wonder material of construction “Plastindia Journal”, September 2013 (English) Over the last decades the inherent weaknesses of concrete, clay, ductile, PVC and steel caused tremendous problems in existing sewer pipe systems, as they tend to be brittle or are too sensitive to aggressive chemicals and soil conditions. Failures had becoma a common occurrence worldwide

Krah Calendar 2014   In the upcoming year, many will be faced with the question: What’s this got to do with pipes? So one or the other may have also marveled at the international plastics trade fair K2013, when he was confronted with the new designs of the Krah Calendar 2014. The answer to the

  It all started with an idea to arrange a family day in Tallinn Zoo for our collegues and their families. And nobody really expected it to evolve into something as meaningful and profound as starting a sponsorship for one of the Tallinn Zoo Amur tigers named Pootsman. The Amur tiger (formerly known as the

  New Video in the KRAH AG channel (youtube: http://www.youtube.com/user/krahnet). Nice large outfall pipes or intakes pipes are shown in this video, to show that our Krah Large Pipe Technology can be used for these kind of application. All jobs were executed by the Spanish company PPA&Krah (www.ppakrah.com). The video: http://www.youtube.com/user/krahnet The complete video and

  This is Kalli, Kalli is an engineer at the Krah AG. He is already retired since a few years, but now he came back with his mission to explain Krah technology in a very simple way to nearly everybody. To present and underline his explanations he is using video, so that also everyone else

The second part of our “making-of” is now online!

General: Segmented Fittings are state of the art for large diameter polyethylene pressure pipe systems. The maximum injection molded bends and T-pieces are until OD 500 available, injection molded stub-ends until OD 630. In larger diameters segmented fittings are the first choice. To guarantee the required homogeneity, stability and strength it is most important to

Pontis is a software package to monitor your KRAH machine from almost everywhere, from the view of a production manager or the general manager. It is not showing boring data or screen shots of the control panel but Pontis is nearly sending real-time production data, which are necessary to run a plant. Reports which have

From the 17th until the 24th of October the Krah AG arranged a bus to visit the Krah AG plan in Schutzbach. At this time a brand new KR750 (spiral pipe production line) is in production. The production line will be disassemble 2 days after the exhibition and will be shipped to Polypipe in the

On the 10th of August 2013 the beautiful town of Tõrva (Estonia) hosted it’s yearly spell casting festival Tõrva Loits. This is the sixth time Tõrva Loits is held, bringing to the audience great performances, leading musicians and exciting spectacle in a lovely natural setting.

10 Questions for Lee Forbes / Forbes Technologies Ltd.

Forbes Technologies Ltd, UK’s leading manufacturer of tanks, scrubbers & other chemical plant in thermoplastics & glass fibre composites opened the latest automated KRAH production plant for large capacity tanks in thermoplastics in August 2013.