leak tight hydrogen orange

Leak tightness of PVC fittings with hydrogen

The PVC gas grid in the Netherlands is presumed to be suitable to transport hydrogen in the (near) future. To expand the knowledge base, this study by Kiwa Technology for PVC4Pipes and Netbeheer Nederland tests excavated pipes and joints from the Dutch gas grid for leak tightness and angular deflection. The study concludes that both PVC-U and PVC-HI pipelines show negligible permeation of hydrogen through pipe wall and rubber sealed socket couplers and good behaviour of angular deflection. As much of the grid has passed or is nearing its 50th anniversary, and the old joints performed as well new joints even after the accelerated ageing, it can be assumed that the Dutch natural gas grid can transport hydrogen safely for many decades.
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reasons_why_water_utilities_choose_pvc

Reasons why water utilities choose PVC pipe

Discover why water utilities all around the world choose PVC pipes in fact sheet from Uni-Bell PVC Pipe Association.
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PVC-U_Pipe_Competitiveness_A_Total_Cost_of_Ownership_Approach_ALTHESYS

PVC-U Pipe Competitiveness: A Total Cost of Ownership Approach

The Milan-based consultancy Althesys has conducted a Total Cost of Ownership (TCO) analysis comparing unplasticised PVC (PVC-U) to other non-plastic materials for water and sewer pipelines lines. The analysis considered the costs to purchase pipes, install, operate and maintain and dismantle the pipeline. PVC-U pipes show significant economic advantages over ductile iron and glass fibre polyester (GRP) in water lines and concrete or clay in the sewer lines.

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Total Cost of Ownership: PVC-U vs. other pipe materials

Total Cost of Ownership: PVC-U vs. other pipe materials

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teppfa pvc4pipes position paper 100 years service lifetime

100-year lifetime for PVC-U and PVC-Hi pressure pipe systems buried in the ground for water and natural gas supply

Joint position paper by TEPPFA and PVC4Pipes.

Durability is key for underground piping systems, as it is costly to install and replace pipes buried in the ground. TEPPFA and PVC4Pipes have identified the need for explaining the difference between the design point at 20 degree/50 years and the expected life time of PVC-U and PVC-Hi pressure pipe systems.

Research, extrapolation studies and studies of dug-up pipes in service for years show minimal degradation and extrapolative tests performed on these test samples confirm an expected service life in excess of 100 years.

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Documents

PVC4Pipes leaflet

Download PVC4Pipes' leaflet and read about our work to communicate about PVC in pipe systems in the global market.
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repurposing-business-mockup

Repurposing business around the meeting of human needs

Dr. Mark Everard debates how consideration of the SDGs in the product life cycle of PVC pipes and other products can ultimately positively impact on global wellbeing. The article is published in the journal Environmental Scientist.
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