Abstract: A solenoid valve device including a solenoid valve and a choke. The solenoid valve device also including a pressure sensor connected to a control device, which transmits opening and closing signals to the solenoid valve. The control device also transmits signals for automatically setting the choke.

Abstract: The three-way valve has a chamber in the body which is adapted to provide a connection from an outlet passage to both inlet passages. One inlet passage is closed by a valve lid which bears on a valve seat and which functions as an automatic outlet valve when the armatures moves into a top position. The other valve lid moves independently in dependance on the inlet pressure of the second inlet passage and the pressure in the outlet passage. In the illustrated rest position, the armature acts by way of a convex closure member to press the lower valve lid onto a valve seat about the second inlet passage.