A valve for fluids, preferably for gases

A valve for fluids, preferably for gases, comprising:

• an inlet passage for a fluid;
• an outlet passage for the fluid;
• a shutter interposed between the inlet passage and the outlet passage and movable along a movement direction (L) between an open position, in which it allows the flow of the fluid from the inlet passage to the outlet passage along a sliding direction (S), and a closed position, in which it prevents the flow of fluid;
• a first magnetic attraction means of the retaining type operatively active on the shutter for attracting and/or keeping the shutter itself towards the open position;
• said first magnetic attraction means being configured to generate magnetic field lines at the shutter;
• a box-shaped body containing the first magnetic attraction means and extending along the movement direction (L) between an outer face and an inner face with respect to an inner volume (V) of the valve interposed between the inlet passage and the outlet passage;
• wherein said box-shaped body comprises a dividing wall made of ferromagnetic material and arranged between the inner volume (V) and a housing in which the first magnetic attraction means is positioned;
• said dividing wall being arranged outside the dimensions of the first magnetic attraction means according to the movement direction (L), and said shutter being arranged on an opposite side to the first magnetic attraction means with respect to the dividing wall;
• said shutter being at least partly made of a magnetic and/or ferromagnetic material so as to be traversed by a transverse component of said magnetic field lines with respect to the movement direction (L) and extending beyond said dividing wall so that said transverse component interacts with the shutter between the open position and the closed position
• wherein said shutter has a lateral portion thereof that overlaps a geometric protrusion of the magnetic attraction means on a plane passing through the shutter and orthogonal to the movement direction (L);
• said lateral portion being at least partly made of a magnetic and/or ferromagnetic material.