Abstract: A valve seat section is formed on a valve body having first and second ports. A plate-like movable iron core is provided so that the movable iron core is capable of being seated on the valve seat section. Springs, which press the movable iron core toward the valve seat section, are provided between the movable iron core and a solenoid section. When the movable iron core is seated on the valve seat section, the movable iron core is pressed toward the valve seat section by the resilient forces of the springs in addition to the pressing force of the pressure fluid.

Abstract: A valve seat section is formed on a valve body having first and second ports. A plate-like movable iron core is provided so that the movable iron core is capable of being seated on the valve seat section. Springs, which press the movable iron core toward the valve seat section, are provided between the movable iron core and a solenoid section. When the movable iron core is seated on the valve seat section, the movable iron core is pressed toward the valve seat section by the resilient forces of the springs in addition to the pressing force of the pressure fluid.

Abstract: A solenoid-operated valve comprises a first valve seat formed on a valve body and communicating a first port with a second port, a guide member arranged in the valve body, a second valve seat at a substantially central open portion of the guide member, a movable iron core attracted by a fixed iron core under magnetic excitation of a solenoid, a valve plug directly connected to the movable iron core, and an elastic section attached to the valve plug and seated on the first and second valve seats when the movable iron core is displaced.

Abstract: A manifold connected to a solenoid-operated valve which has a connector having a plurality of fluid passages for supplying and discharging a fluid under pressure to and from the solenoid-operated valve, includes a body having a substantially rectangular shape, an engaging groove defined in an upper surface of the body, a mount hole defined in the body, and a stopper member. The stopper member is inserted in the mount hole, and has an end retained in the mount hole. The stopper member has an extensible resilient spring arm and an engaging hole defined in the stopper member for receiving and engaging the connector of the solenoid-operated valve when the stopper member is displaced.

Abstract: Engaging holes are disposed on both sides of an upper surface of a body of a manifold and are spaced from an axis of the body by a predetermined distance. A solenoid-operated valve is installed to the manifold. Shaft sections of a U-shaped connecting pin are inserted into the engaging hole of the body and another engaging hole of an adjacent manifold respectively. A connecting plate is installed to connect engaging projections which are formed at a second end of the body and a second end of the adjacent manifold.

Abstract: A self-holding type solenoid-operated valve comprises a single coil which is wound around a bobbin in one direction, a movable iron core which is disposed coaxially with a fixed iron core, a first spring which urges the movable iron core away from the fixed iron core, and an annular permanent magnet which is installed to a portion at which an end of the fixed iron core and an end of the movable iron core are opposed to one another. The annular permanent magnet partially surrounds the outer circumferential surfaces of the fixed iron core and the movable iron core.

Abstract: Engaging holes are disposed on both sides of an upper surface of a body of a manifold and are spaced from an axis of the body by a predetermined distance. A solenoid-operated valve is installed to the manifold. Shaft sections of a U-shaped connecting pin are inserted into the engaging hole of the body and another engaging hole of an adjacent manifold respectively. A connecting plate is installed to connect engaging projections which are formed at a second end of the body and a second end of the adjacent manifold.

Abstract: A manifold connected to a solenoid-operated valve which has a connector having a plurality of fluid passages for supplying and discharging a fluid under pressure to and from the solenoid-operated valve, includes a body having a substantially rectangular shape, an engaging groove defined in an upper surface of the body, a mount hole defined in the body, and a stopper member. The stopper member is inserted in the mount hole, and has an end retained in the mount hole. The stopper member has an extensible resilient spring arm and an engaging hole defined in the stopper member for receiving and engaging the connector of the solenoid-operated valve when the stopper member is displaced.

Abstract: A solenoid-operated valve comprises a first valve seat formed on a valve body and communicating a first port with a second port, a guide member arranged in the valve body, a second valve seat at a substantially central open portion of the guide member, a movable iron core attracted by a fixed iron core under magnetic excitation of a solenoid, a valve plug directly connected to the movable iron core, and an elastic section attached to the valve plug and seated on the first and second valve seats when the movable iron core is displaced.

Abstract: A self-holding type solenoid-operated valve comprises a single coil which is wound around a bobbin in one direction, a movable iron core which is disposed coaxially with a fixed iron core, a first spring which urges the movable iron core away from the fixed iron core, and an annular permanent magnet which is installed to a portion at which an end of the fixed iron core and an end of the movable iron core are opposed to one another. The annular permanent magnet partially surrounds the outer circumferential surfaces of the fixed iron core and the movable iron core.