Valve
A valve is a device that regulates the flow of a fluid (gases, fluidized solids, slurries, or liquids) by opening, closing, or partially obstructing various passageways. Valves are technically pipe fittings, but are usually discussed as a separate category.

Esempio di valvola prodotta da Viar Valvole S.r.l.

Valvole tradizionali prodotte nel 2009 da Viar Valvole S.r.l.

Valve example product by Viar Valvole S.r.l.

Couple of valve production 2008