2. Faucets
2.1 Valve selection, notion of Kv and Cv
The size of a valve is often described by the nominal size of its end connection. But for most fluid systems, the allowable flow rate for a valve is a more important measure. The principles of flow calculation require that certain aspects of the flow path be known, including :
1.Size and shape of orifice and flow passage.
2.Internal diameter of pipe or tube.
3.Fluid characteristics, such as density and temperature.
4.Pressure drop between inlet and outlet.
It's easy to understand that a straight-through flow path, such as that of a ball valve (figure
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Faucets
Bibliography
Also in our database
Websites
http://www.spiraxsarco.com/fr/global/corporate_search.asp
http://www.swagelok.com.fr/vannes/selectionnez_la_bonne_vanne_votre_application.htm
...Standardization
- Faucets – Vocabulary and definitions - NF E 29-306 -
- Industrial valves – Parts list for the main valves - NF E 29-307 -
- Industrial valves – Safety valves – Rupture disc - NF E 29-421 -
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