Replacing Purge Air Networks at the Water Harvesting Station Tender

• Country: Netherlands
• Summary: Replacing Purge Air Networks at the Water Harvesting Station in Nieuwegein
• NLT Ref No: 136240463
• Deadline: 19 Mar 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: 390fa86e08014f91b73bae8d4db9e02a
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• Description:
• Location At Waterinwinstation Cornelis Biemond (WCB), Ampérebaan 4, 3439 MH Nieuwegein, surface water is pre-purified for drinking water preparation and industrial use. At this location, the existing 40 copper purge air networks have expired after 30 years in need of replacement. Background Purge air networks are networks of pipes, often made of copper or PVC, that combine air and water in water recovery stations and rapid filters to effectively flush and clean the filters and pipes. They primarily serve to remove dirt, remove deposits and air bubbles from the system, which ensures efficient water filtration, prevents blockages and maintains water quality through an abrasive flushing process with air and water. Replacement project in quick filters This project focuses focuses on the primary task of replacing the existing 40 copper purge air networks with PVC networks in the rapid filters one (1) on one (1). The current 40 copper purge air networks have reached the end of their technical lifespan after 30 years of use. It Replacement of nine (9) purge air networks started in Q32025 due to the failure of a number of purge air networks. In Q1 of 2026, the Client wants to start replacing the other 31 purge air networks of the rapid filters. To realize this the filter sand and supporting layers must be removed and reinstalled after installation of the new PVC purge air nets. Objective The aim of this project is to design, test, supply and install new sustainable PVC purge air networks. By means of This replacement will increase operational reliability and reduce maintenance costs. The copper purge air networks in the installation must be replaced by PVC networks. To do this, the filter sand and supporting layers must first be removed. Once Once the new PVC nets have been installed, the filter sand and support layers will be reapplied. The replacement of 31 purge air networks must be started in Q12026 and completed no later than Q22028. Description of the Assignment The C...
• Documents:

 Tender Notice