A nozzle assembly includes a hollow nozzle body having a central bore and a plurality of ports extending through the body from the central bore; a switching valve assembly disposed in the central bore that directs fluid flow to ports upon application of fluid flow above a predetermined threshold to the inlet and direct fluid flow to different ports upon fluid flow having subsequently dropped below the predetermined threshold and then exceeding the predetermined threshold; and a flow insert configured to replace the switching valve assembly for directing flow through all of the ports when switching functionality is not needed. This flow insert may be made of a low pressure material such as a polymer.

A water outlet device and a water outlet system are disclosed. The water outlet device includes a housing assembly provided with a water inlet flow channel and at least one water outlet hole, a moving mechanism and a driving member. The moving mechanism is disposed between each water outlet hole and the water inlet flow channel. The moving mechanism is provided with a first groove wall and a second groove wall which are oppositely arranged along the first direction. Therefore, the driving forces of the water entering the first groove and acting on the first groove wall and the second groove wall have opposite driving directions with respect to the moving mechanism, which can partially or completely counteract the acting forces of the fluid on the moving mechanism, and reduce the influence of the water pressure on the switching resistance of the water outlet device.

A device for applying viscous material to workpieces includes a rotary lance in a holder apparatus and rotatable about a longitudinally-extending rotation axis, the lance having at least one material outlet. A needle valve associated with each material outlet has a longitudinally-extending valve needle used to close each material outlet on a valve seat. Each valve needle has an associated cylinder with a plunger chamber in which a plunger is movable by pressure applied by a fluid, the valve needle being permanently connected to the plunger. A tappet is connected to each plunger, the tappet, at its upper end facing away from the at least one valve seat, being sealingly guided out of the associated plunger chamber. The rotary lance has a measuring element which can be acted upon by the tappet and moved longitudinally; and the holder apparatus has a sensor for determining the measuring element position.

A spray gun for a kitchen contains: a connector, a body, a spraying element, an adjustor, and a casing. The connector includes a conduit, an inlet, and an outlet. The body includes a guiding channel, a press bar, a control bolt, and a spring. The spraying element includes a fixer, a valve core, a fitting ring, a first water supply unit, and a second water supply unit. The fixer has a switch groove. The fitting ring has a first watering path and a second watering path. The adjustor includes an adjusting stem. The casing is fitted on the spraying element, and a distal end of the casing is connected on the adjustor so as to move the casing forward or backward to switch the adjusting stem of the adjustor on the switch groove. In addition, the switch groove has a first position and a second position.

A system for applying an agricultural product includes at least one control valve. For instance, the control valve has a moveable valve operator. One or more sensors monitor one or more control valve characteristics. A valve controller is configured to determine the control valve is in one or more of a primed state or an unprimed state based on a comparison of the one or more control valve characteristics to a primed valve characteristic threshold.

A hand shower and base showerhead with water flow switching mechanism in which a movable flow switching magnet movable between a hand shower flow permitting position and a base showerhead flow permitting position is used to magnetically act on the magnetic hand shower flow control assembly and the magnetic base showerhead flow control assembly to achieve automatic switching of water flow from the hand shower to the base showerhead and vice versa.

A spray gun for a kitchen contains: a connector, a body, a spraying element, an adjustor, and a casing. The connector includes a conduit, an inlet, and an outlet. The body includes a guiding channel, a press bar, a control bolt, and a spring. The spraying element includes a fixer, a valve core, a fitting ring, a first water supply unit, and a second water supply unit. The fixer has a switch groove. The fitting ring has a first watering path and a second watering path. The adjustor includes an adjusting stem. The casing is fitted on the spraying element, and a distal end of the casing is connected on the adjustor so as to move the casing forward or backward to switch the adjusting stem of the adjustor on the switch groove. In addition, the switch groove has a first position and a second position.

One variation of a system includes: a housing including a fluid inlet coupled to a fluid supply; a set of nozzles arranged on a distal end of the housing and including an aerator nozzle, a soft-flow nozzle, and a flat-fan nozzle; a momentary shutoff button arranged on the housing and configured to transition a momentary shutoff valve between positions to selectively pass fluid from the fluid supply to the set of nozzles; a primary flow selector valve configured to selectively pass fluid from the fluid supply to the set of nozzles; a secondary flow selector valve configured to selectively pass fluid from the primary flow selector valve to the set of nozzles; and a flow selector button arranged on the housing and configured to transition the primary flow selector valve and the secondary flow selector valve to selectively pass fluid to the set of nozzles.

A system for applying an agricultural product includes at least one control valve. For instance, the control valve has a moveable valve operator. One or more sensors monitor one or more control valve characteristics. A valve controller is configured to determine the control valve is in one or more of a primed state or an unprimed state based on a comparison of the one or more control valve characteristics to a primed valve characteristic threshold.

A control module for a water outlet device, a waterway switching device, a water outlet device and a shower. The water outlet device includes a switching valve, a control module and a hydroelectric generator. The switching valve includes a valve body, a valve stem and at least two solenoid valves. The valve stem is configured to control the opening and closing of a first water outlet port, and each solenoid valve is configured to control the opening and closing of a second water outlet port respectively. When the second water outlet ports are all closed, the valve stem moves to a position where the first water outlet port is opened, and when at least one second water outlet port is opened, the valve stem moves to a position where the first water outlet port is closed.