Polybutylene - An Alternative for Heating and Domestic Hot & Cold Water Systems [PB]

# 1995 Edinburgh

Polybutylene-l (PB) for pipe applications was first developed by Chemische Werke Huls in Germany in the early 1960's. 1965 several manufacturers were chosen by Huls to extrude pipes for trial installations - one of them was SALEN (today PIPELLFE) in Austria.

Hiils sold it's PB-know how early 1970's. Mobil Chemical Co. and Witco Chemical Corp. worked on PB in the USA before SHELL took over the PB-plant. Since then SHELL improved Polybutylene significantly and supplied major companies in USA and Europe with new grades of PB especially formulated for underfloor - heating and radiator connections.

In 1982 SHELL introduced the brand new grade PB 4137 . which is stabilised for elevated temperatures and approved for drinking water as well. This type is now successfully used since and passed all required tests in various testing institutions.

Please note that the whole article content is available on PPCA website onlySource : 1995 Edinburgh


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