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Home / Calculators / Valve Sizing (Kvs)

Valve Sizing (Kvs)

The right valve, together with its flange set. Valve size and PN; flanges, gaskets and bolts for each valve.

Calculating…
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How do we calculate?

Kvs = Q ÷ √Δp (Q in m³/h, Δp in bar). The valve size is the pipe size that keeps the water velocity below 1.0 m/s up to DN50 and 1.5 m/s up to DN150.

Let us turn your calculation into a bill of materials

Send us the list from the calculator; we will quote flanges, elbows, tees, reducers, pipes and valves in a single offer, with EN 10204 3.1 material certificates.

This calculator is used in these sectors: Building services (HVAC & plumbing). All calculators →

Results are for preliminary selection and do not replace engineering design. Ask our technical team for the final selection.

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