A valve assembly for spraying devices for agricultural technology having a plurality of valves, wherein the valves each include a valve body, which is capable of assuming at least one enable position and one disable position relative to a valve seat, an electric motor for moving the valve seat and/or the valve body into the enable position and the disable position, and an electric energy storage device for providing electric energy for the electric motor, wherein a voltage converter is provided and configured, in a first operation mode, to convert a first voltage provided by the energy storage device into a second, higher voltage to be applied to the electric motor during moving the valve body and/or the valve seat and, in a second operation mode, to charge the energy storage device with low power input.

A control valve may include a fluid inlet, a plurality of fluid outlets, and a plurality of magnets. One of the plurality of magnets controls fluid flow for each of one of the plurality of fluid outlets. One of the plurality of magnets controls fluid flow for the remaining of the plurality of magnets. When the magnet controlling fluid flow for the remaining of the plurality of magnets is energized, fluid flow is permitted to the remaining of the plurality of magnets. When the remaining of the plurality of magnets are energized, fluid flow is permitted to the respective plurality of fluid outlets.

A control valve may include a fluid inlet, a plurality of fluid outlets, and a plurality of magnets. One of the plurality of magnets controls fluid flow for each of one of the plurality of fluid outlets. One of the plurality of magnets controls fluid flow for the remaining of the plurality of magnets. When the magnet controlling fluid flow for the remaining of the plurality of magnets is energized, fluid flow is permitted to the remaining of the plurality of magnets. When the remaining of the plurality of magnets are energized, fluid flow is permitted to the respective plurality of fluid outlets.

[Object] To provide a compact, rationally designed, dual 4-port electromagnetic valve that is an electromagnetic valve having functions of two 4-port valves.

[Solution] A dual 4-port electromagnetic valve includes two spools (8a, 8b) slidable independently of each other in a valve hole (7); two pilot valves (4a, 4b) that drive the two spools, respectively; a main supply port (P) that communicates with the valve hole (7) at a position where the two spools face each other; first and second output ports (A1, A2) that communicate with the valve hole (7) on two respective sides of the main supply port (P), first and second discharge ports (E1, E2) that communicate with the valve hole (7) on two respective outer sides of the output ports (A1, A2), third and fourth output ports (B1, B2) that communicate with the valve hole (7) on two respective outer sides of the discharge ports (E1, E2), and first and second supply ports (P1, P2) that communicate with the valve hole (7) on two respective outer sides of the output ports (B1, B2). The main supply port (P) and each of the first and second supply ports (P1, P2) communicate with each other.

A structure for forming a fluid path is provided. The structure for forming a fluid path according to one embodiment of the present disclosure includes a body configured with first and second fluid paths which communicate with each other, and a third fluid path which is provided at a position, at which the first and second fluid paths are connected to each other, and communicates with the first and second fluid paths, and includes one or more among a first ball which is able to be disposed in the first fluid path, a second ball which is able to be disposed in the second fluid path, and a third ball which is able to be disposed in the third fluid path, wherein a diameter of the first fluid path is greater than that of the second fluid path, and the second ball is able to be disposed in the second fluid path by passing the first fluid path.

A stepper motor proportionally controlled bellows valve system comprising: a valve manifold; one or more stepper motors; and one or more bellows valves. The one or more bellows valves may comprise a bellows, a sealing washer, and a profile washer. The sealing washer is configured to removeably engage with a vacuum orifice rim. The profile washers are configured to stick into the valve orifice, such that the profile washer defines a flow through the valve.

A method of controlling the flow of different flow paths of fluid is provided. The method includes rotating a valve to a first position, receiving a first concentrate in the first position, discharging the first concentrate through one of two outlets, rotating the valve to a second position, receiving a second concentrate in the second position, and discharging the second concentrate through one of the two outlets.

A method of controlling the flow of different flow paths of fluid is provided. The method includes rotating a valve to a first position, receiving a first concentrate in the first position, discharging the first concentrate through one of two outlets, rotating the valve to a second position, receiving a second concentrate in the second position, and discharging the second concentrate through one of the two outlets.

A faucet includes a mixing chamber, a bypass chamber, a hot water actuator, a cold water actuator, and a valve assembly. The mixing chamber is in fluid communication with a spout. The bypass chamber is operably coupled to a source of cold water. The cold water actuator is operably coupled to provide, upon actuation, cold water to the mixing chamber. The hot water actuator is operably coupled to provide, upon actuation, hot water to the mixing chamber. The valve assembly has a seal configured to move in a direction away from the spout responsive to a temperature of water in the mixing chamber exceeding a threshold, such that fluid connection is provided between the bypass chamber and the mixing chamber.

A mixing valve includes a housing having, arranged therein: a first flow duct having a first flap mounted rotatably in the first flow duct and configured to influence the throughflow cross section of the first flow duct, and a second flow duct, the second flow duct issuing into the first flow duct, and having a second flap mounted rotatably in the second flow duct and configured to influence the throughflow cross section of the second flow duct. The first flow duct has, downstream of the issue of the second flow duct, as seen in the flow direction, a region with at least two cross-sectional widenings, and at least one stationary guide element, projecting into the first flow duct, is arranged in the region with the at least two cross-sectional widenings.