Thanks to the special molding technique, the body is produced in one piece, ball and seals cannot move from their seats, even in the most extreme operating conditions. The materials provide a high level of security and resistance to temperatures and operating pressures, thus ensuring a long service life.

The ball sphere is completely enclosed in its casing, this guarantees the absence of stagnation which would compromise the quality of drinking water. The internal diameter of the sphere has been adapted to the internal diameter of the corresponding tube (PPR or PE100) to ensure low pressure drop.

Valvevolution employs materials resistant to many solvents and chemicals and do not require special protection against oxidation (please contact our technical department laboratorio@plasticalfa.it for application different from water).

The chemical inertness of PP and PE against many substances (including salts dissolved in water) and a special coating of the brass ball, prevent the formation of fouling, blocking and rust, avoiding anomalies in hydraulic seal and valves maneuverability thus preventing pressure loss, rust and limestone fillings.The excellent weight / volume ratio allows its use in systems with plastic pipes without weighing down the line.