Please check with us the price and weight The polished two-way ball valve -in steel- is a ball valve proposed by Maros Engineering to allow the total passage of fluid. Our pneumatic ball valves meet high standards in terms of quality and safety. The direct contact between the ball and the internal gasket ensures that the insulation is ideal in any condition, with the consequent improvement of the mechanical efficiency of each system. In addition, the pneumatic actuation makes the various procedures much faster than usual, with the ultimate aim of having a product always at the top of its capabilities from every point of view.