Water Line

The Water Line features the production of unidirectional valves, by-passes and flow control valves, which are used in the hydrothermal-sanitary industry.

Unidirectional Valves

Unidirectional valves are made of polyacetal and have retaining gaskets and stainless-steel springs, which guarantee a resistance of up to 95°C. It’s also possible to substitute certain components in accordance with the client’s needs (e.g.: Viton or silicon retaining gaskets; Hastelloy springs, and so on).
Unidirectional valves, also called anti-suction or check valves, are used to turn off the flow of liquid when a depressive condition occurs on the water network, impeding the reflux and maintaining the inner pressure of the circuit stable.


By-passes are valves which intervene when the circuit reaches a prearranged pressure, guaranteeing the circulation of the water flow.
linea acqua by pass tecno alfa

Flow Control Valves

Flow Control Valves keep the water flow rate constant, independently of the upstream pressure of the regulator itself.
linea acqua limitatori di flusso tecno alfa