Giacomini N5 Check Valve with Rubber Seal

The clapet check valves with N5 rubber-metal seal are single-direction devices which prevent the return of pressurised fluid. They are suitable for use in domestic water systems, raised water systems, fire protection, central heating and boiler room systems, solar plants, and water systems for industrial and agricultural applications in general. The internal hydraulic seal is ensured by the forces exercised by the mass of a tilting shutter and by the pressure of the liquid above a gasket which activates the seal, even when subject to minimal back pressure. Due to the fact that these valves function via the gravitational force that acts on the tilting shutter (clapet or swing), there is no universal guideline as to where these should be positioned. The advantage of these valves is the low incidence of losses of pressure due to the rounded shape of the valve body and the large passage section which is obtained via the oscillation of the shutter; these elements also mean that they are extremely quiet.