- Experience since 1922
- Flexible and reliable
- Inhouse production and coating
- Wide range of products on stock
- Customized Products and Service
Non return valves
Kolk offers a complete range of non return valves for (drinking) water transporting systems. The non return valves are in compliance with all current (N)EN, ISO, DIN and Kiwa standards and are epoxy coated (GSK certified)
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