Valves
Check Valve
Check valves for backflow prevention in pump stations, networks, energy and chemical piping systems.
Materials
Reference Standards
Industries
Applications
Selection and procurement checks
Check valves address the listed backflow-prevention applications. State the pump or network location, flow direction and installation orientation in the inquiry. Confirm valve form, medium conditions, pressure class and interfaces against project drawings.
Information required for quotation
- Nominal size, pressure class, medium and flow direction
- Valve form and horizontal or vertical installation requirement
- Connection ends, face-to-face length, materials and inspection
The materials and standards listed on this page identify reference procurement options. They do not imply that different grades, standards or product forms are interchangeable. Specify the governing standard, material grade, dimensions and inspection requirements in your purchase list; the agreed technical documents define the supply scope.
Include the quantity for each size, delivery destination, required arrival date, and any packaging, marking or documentation requirements so that the supply scope and delivery arrangements can be checked item by item.
Quality and inspection documents
Please state whether the order requires a Mill Test Certificate (MTC/MTR), an EN 10204 type 3.1 inspection certificate, heat or batch traceability, or other inspection records. The document type, applicable material and availability must be confirmed for the specific order. EN 10204 type 3.2 involves additional independent inspection requirements and must be agreed separately before supply.