The resin waterworks intend to renew their Ristedt pure water pipeline between the Ristedt waterworks and the Barrien pressure booster system over a length of approx. 2,000 m. The new pipeline is planned to be built as a steel pipeline. Pipes with the following specifications are planned for the new drinking water pipeline:

DN 800 steel (813 x 8), grade: L235, lengths: 12.00 m, beveled ends, outside: PE sheathed (black), N design, inside: C1 cement lining with 30-40 mm cut back, DVGW certificate, length 2.112m.

During the construction project (approx. 1 year), a temporary system to maintain the drinking water supply must be set up and operated. Tubes with the following specifications are intended for the temporary solution:

DN 600 steel (610 x 6.3), grade: L235, lengths: 12.00 m, beveled ends, DVGW certificate, length 1,956 m.

The present tender includes the delivery of the aforementioned pipes for the new drinking water pipeline and the temporary solution. The further work (pipeline construction work) will be published later in separate tenders.

1.) Delivery of a drinking water pipe:

DN 800 steel (813 x 8), grade: L235, lengths: 12.00 m, beveled ends, outside: PE sheathed (black), N design, inside: C1 cement lining with 30-40 mm cut back, DVGW certificate, length 2.112m.

2.) Delivery of a prov. drinking water pipe:

DN 600 steel (610 x 6.3), grade: L235, lengths: 12.00 m, beveled ends, DVGW certificate, length 1,956 m.