HDPE SPIRAL PIPE Information PP-B

Desember 15, 2019 by admin in Industry News

High Modulus PP-B pipe material for spiral wound pipes

Introduction & Background

Polypropylene has an excellent track record after more than 30 years of service for non-pressure sewage and drainage applications. The inherent material properties and their development, energy and cost efficiency, pipe design and ease of manufacture and installation have contributed to this success. The traditional cornerstones of the requirements profile such as impact resistance, dtiffness and chemical resistance are increasingly being supplemented by demands for purity, sustainability and recyclability. Consequently, the continuous development seen in both material and pipe design has brought additional benefits to the members of the value chain and to a sustainability society.

The first generation of PP with higher modulus PP was introduced in 1998 and provided a major step forward with an optimized balance of the stiffness-impact properties. A few years later, this product was improved and an E-modulus of 1700 Mpa was achieved, representing the first PP-HM to meet the requirements set in the modified EN1852 standard in 2002. The journey has continued and is reflected by the next PP-HM with an E-modulus of 2002 Mpa, achieved without the use of fillers, meeting the requirements set in the relevant product standards.

Spriral wound pipe systems are ideal for large diameter gravity drainage or sewerage systems or industrial pipelines, such as sea intake and outfall pipes. The process is extremely flexible, enabling pipes to be custom designed over a wide range of diameters and stiffness classes.

figure1 : Innovation in PP related to non-pressure application

article source:
Handbook on large plastic pipe
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