WebFlow Coefficient and Flow Factor Values. The table below list typical maximum flow coefficient, Cv, and flow factor, Kv, values for full bore ball valves: Nominal Diameter. Max Cv. Max Kv. Inch. mm. gpm.psi. (m³/hr).bar. WebMar 31, 2015 · Flow Factor, Kv: This is very similar to the flow coefficient above, but not equal. The flow factor is the metric form and a simple conversion factor shown below can be used. Loss Factor, K: The loss factor is a constant directly proportional to the pressure drop across the component. As the K factor increases so does the resistance to flow.

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WebThe Kv value or flow coeffiecient of the valve is typically based on the expected flow of water through the valve with a pressure drop or pressure difference of 1 bar, So, for example a PU220AR-04 1/2" BSP Brass 2/2 normally closed Shako solenoid valve with a Kv flow factor of 35 will flow 35 litres a minute with a 1 bar inlet pressure and a ... WebFlow coefficient Kv. Kv is the volume of water in cubic meters that flows through a valve per hour at a pressure drop of 1 bar with a fully open valve. For example, a Kv of 20 means … moss lake carnation

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WebCv (Imperial) = Kv x 0.962 658. Cv (US) = Kv x 1.156 099. AV = 2.88 x 10-5 CV (Imperial) The flow coefficient, KVS for a control valve is essential information, and is usually stated, along with its other data, on the … WebA flow rate of 0.225l/s passes through a D921 ¾” DRV (Double regulating Valve), calculate the pressure drop when the valve is fully open (FO). Look up Kv value for ¾” D921 (Fully Open) (Check Manufacturers published Flow Coefficient value in Datasheet) Kv = 3.61. Δp = (36 x Q / Kv)2. ΔP is the pressure drop across the valve (expressed in psi). In more practical terms, the flow coefficient Cv is the volume (in US gallons) of water at 60 °F (16 °C) that will flow per minute through a valve with a pressure drop of 1 psi (6.9 kPa) across the valve. The use of the flow coefficient offers a standard … See more The flow coefficient of a device is a relative measure of its efficiency at allowing fluid flow. It describes the relationship between the pressure drop across an orifice valve or other assembly and the corresponding See more The metric equivalent flow factor (Kv) is calculated using metric units : where Kv is the flow factor (expressed in m ·h ). Q is the flowrate … See more • Discharge coefficient See more moss lake boat dock