An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

A valve assembly has a port selection assembly with an inlet fluid path and a plurality of outlet fluid paths and a servo-driven barrel. The barrel includes a slot that is aligned with the inlet fluid path. The barrel also includes multiple pockets. The valve assembly also includes ball seals, each of which is at least partially disposed within a respective pocket. The rotation of the barrel moves the ball seals to block or unblock one or more of the outlet fluid paths, thereby controlling the flow of fluid from the inlet fluid path, through the slot, and through the outlet fluid path.

A valve assembly has a port selection assembly with an inlet fluid path and a plurality of outlet fluid paths and a servo-driven barrel. The barrel includes a slot that is aligned with the inlet fluid path. The barrel also includes multiple pockets. The valve assembly also includes ball seals, each of which is at least partially disposed within a respective pocket. The rotation of the barrel moves the ball seals to block or unblock one or more of the outlet fluid paths, thereby controlling the flow of fluid from the inlet fluid path, through the slot, and through the outlet fluid path.

In accordance with at least one aspect of this disclosure, a system, e.g. a four-way valve system, can include a fluid source to provide fluid to a moveable component to move the moveable component between a first position and a second position. The system can include a four-way valve configured to selectively allow flow from the fluid source to enter either a first side of the moveable component through a first high pressure fluid channel or a second side of the moveable component through a second high pressure fluid channel. A controller can be operatively connected to control the valve to move between a first position and a second position, which in turn adjusts the position of the moveable component between the first position and the second position.

In accordance with at least one aspect of this disclosure, a system, e.g. a four-way valve system, can include a fluid source to provide fluid to a moveable component to move the moveable component between a first position and a second position. The system can include a four-way valve configured to selectively allow flow from the fluid source to enter either a first side of the moveable component through a first high pressure fluid channel or a second side of the moveable component through a second high pressure fluid channel. A controller can be operatively connected to control the valve to move between a first position and a second position, which in turn adjusts the position of the moveable component between the first position and the second position.

The present disclosure discloses an auto-switching tee joint, including a transitional tube, a first inlet tube, a second inlet tube and an outlet tube. The first inlet tube and the second inlet tube are disposed at two ends of the transitional tube, and the outlet tube is connected at a side wall of the transitional tube. In the transitional tube, there is provided with a switching ball which is movable freely. Both the first inlet tube and the second inlet tube have a bell-mouth which faces the transitional tube. The switching ball has a diameter larger than a minimum inner diameter of the bell-mouth and larger than an inner diameter of the outlet tube. The present disclosure further provides a device for washing and drying clamps which adopts the above auto-switching tee joint and can accomplish the washing and drying of clamps, save costs and improve working efficiency.

The present disclosure discloses an auto-switching tee joint, including a transitional tube, a first inlet tube, a second inlet tube and an outlet tube. The first inlet tube and the second inlet tube are disposed at two ends of the transitional tube, and the outlet tube is connected at a side wall of the transitional tube. In the transitional tube, there is provided with a switching ball which is movable freely. Both the first inlet tube and the second inlet tube have a bell-mouth which faces the transitional tube. The switching ball has a diameter larger than a minimum inner diameter of the bell-mouth and larger than an inner diameter of the outlet tube. The present disclosure further provides a device for washing and drying clamps which adopts the above auto-switching tee joint and can accomplish the washing and drying of clamps, save costs and improve working efficiency.

The invention relates to a changeover valve comprising a spherical valve body, which lies against a first valve seat in a first position and lies against a second valve seat in a second position, wherein an opening is provided in a region between the first valve seat and the second valve seat, which opening is adjoined by a further line, which ends at an outlet connection of the changeover valve, wherein the valve body has a diameter d.sub.Kugel, and wherein at most a circle having a diameter d.sub.einschreib can be inscribed in a projected area defined by an orthogonal projection of the opening onto a selected projection plane, wherein d.sub.einschreib<d.sub.Kugel, and wherein the projected area is noncircular when the diameter d.sub.einschreib of the inscribed circle reaches a maximum in dependence on the selected projection plane.

The invention relates to a changeover valve comprising a spherical valve body, which lies against a first valve seat in a first position and lies against a second valve seat in a second position, wherein an opening is provided in a region between the first valve seat and the second valve seat, which opening is adjoined by a further line, which ends at an outlet connection of the changeover valve, wherein the valve body has a diameter d.sub.Kugel, and wherein at most a circle having a diameter d.sub.einschreib can be inscribed in a projected area defined by an orthogonal projection of the opening onto a selected projection plane, wherein d.sub.einschreib<d.sub.Kugel, and wherein the projected area is noncircular when the diameter d.sub.einschreib of the inscribed circle reaches a maximum in dependence on the selected projection plane.