Ever since the 1980s, BT Nyloplast's gullies have been prevalent in the streets. Gullies have evolved considerably as a result of the wishes of customers and market research. Examples are an impact-resistant PE-bottom replacing PVC, a U3 recyclate sump instead of solid wall, an extended program of covers, filter systems and/or swivel joints, varying sand trap capacity and a KOMO certificate.
Since October 2010, BT Nyloplast has taken a major step towards sustainability for its range of gullies as it has applied multi-layer recyclate pipes for heavy-traffic gullies. The pavement and street gullies that are now successfully applied by a great many councils in the Netherlands were until recently made of 'virgin' PVC (or single-wall pipe). With a view to taking a significant step towards sustainability for this "fastest-growing" plastic gully as well, BT Nyloplast now applies a basic material that is composed of over 50% recyclate.
The BT Nyloplast heavy traffic gully (Y-class) is composed of multi-layer recyclate and complies with the strictest demands. In this regard, both the loading tests and the other dynamic tests have proved successful and a KOMO certificate has been issued for these gullies as well.
In brief, the fastest growing plastic gully now comes in a sustainable version with an unaffected lifespan.