<p>The valve's magnetic circuit (1) and the intermediate metal ring (10) are made from a single piece. The plastic valve body (16) and the metal ring (10) are fixed t each other by a resin joint placed in a slot (17). The resin chemically adheres to the metal of the ring and retains the mechanically the plastic body. The ends of the valves winding are wound on pins (5) used for the valves electrical connections. The electro-valve having a flat plunger (3) electro-magnet (1,2). The plunger does not penetrate inside the fixed core (1) nor from the winding (2). The winding and its electrical connections are integrated in the fixed core. The valve has an intermediate ring (10) fitted with an interior shoulder (12) used to retain a reset spring (13). The ring is fixed to the core (1) and the valve body (16). The plunger has a plane surface and the flat spring (13) is fixed at its center between the plunger and a support (14) carrying a shutter used to seal a bus (20) when the valve is in the closed position. The plunger effects the seal when its peripheral surface (12) presses against the intermediate ring (10).</p>
