A valve actuator includes a motor and a gear assembly that receives driving force of the motor and controls a valve. In the gear assembly, a power transmission gear for transmitting rotational force of an input gear to an output gear includes a selective power transmission unit. When the output gear is in physical contact with a stopper, the power transmission gear transmits the rotational force of the input gear to the output gear is blocked. Accordingly, even after the valve is actuated to close a path, the rotational force of the input gear is not transmitted to the output gear even though the motor is continuously driven.

An apparatus for handling fluid within an at least partially electrically powered vehicle, including: a valve device with a valve housing, the valve housing includes at least eight radially arranged port openings for fluid to flow in or out, a valve body, which is arranged inside the valve housing and is rotatable about an axis of rotation R, and the valve body includes at least four connecting channels for fluidly connecting two port openings, respectively.

A valve device 3 includes a housing 2 and a valve body 4. The valve body 4 has a first switching position where a first supply port 31 and a first discharge port 33 communicate via an inner flow path 44 and a second supply port 32 and a second discharge port 34 communicate via an outer flow path 45, a second switching position where the first supply port 31 and the second discharge port 34 communicate via the outer flow path 45 and the second supply port 32 and the first discharge port 33 communicate via the inner flow path 44, a third switching position where the first supply port 31 and the first discharge port 33 communicate via the outer flow path 45 and the second supply port 32 and the second discharge port 34 communicate via the inner flow path 44, and a fourth switching position where the first supply port 31 and the second discharge port 34 communicate via the inner flow path 44 and the second supply port 32 and the first discharge port 33 communicate via the outer flow path 45.

A valve device includes a case including an open lower portion and an accommodation space provided therein, a base plate to cover the open lower portion of the case, a refrigerant inlet pipe connected to the base plate and to allow a refrigerant to flow into the accommodation space, an inlet and outlet pipe connected to the base plate to allow the refrigerant to flow in and out, a boss including a refrigerant inlet and outlet hole formed at a first position spaced apart from a center to communicate with the inlet and outlet pipe, and an extending groove extending radially outward from the first position to a second position and connected to the refrigerant inlet and outlet hole, and a pad including an open cavity rotatable on one side of the boss to close the refrigerant inlet and outlet hole and to open the extending groove.

A valve box for accessing a utility valve, the valve box having a box housing with an inner surface and an outer surface. The outer surface may have a plurality of fins, and the inner surface may have a plurality of keyways configured to receive a plurality of keys. The inner surface may additionally have threading. The box housing may have an access opening in some embodiments, and the valve box may include a threaded valve box cover configured to be arranged over the access opening. In some embodiments, the box housing may have a plurality of modular rings. A valve box tool may have a driving portion, a valve box engaging portion, and a stem portion. The valve box engaging portion may have a plurality of keys configured to engage the plurality of keyways. The stem portion may be configured to extend between the driving portion and a valve.

Valve with two-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a two-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate.

A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening Φ2 is smaller than a diameter of the valve opening Φ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

A diverter is provided for use in directing airflow from an input port to selected output ports. The diverter allows for operation without valves, and is able to provide an air signal to selected output ports in a predetermined manner. The diverter having a rotatable member, or swivel valve, directing air signals to the desired output port depending on the rotational position thereof. The diverter is driven by a controlled actuator or motor, to thus control the manner in which air signals are provided to a plurality of output ports in a controlled manner.

Provided is a flow rate control valve capable of suppressing leakage of a fluid when the flow rate control valve completely closes a valve port as compared to a flow rate control valve that does not include a gap reducing portion being provided so as to partially reduce a gap between a valve body and a member opposed to the valve body, and a temperature control device using the flow rate control valve. The flow rate control valve includes: a valve main body including a valve seat, the valve seat having a columnar space and having one or a plurality of valve ports, which allow a fluid to flow therethrough and each have a rectangular cross section; a valve body being provided in a freely rotatable manner in the valve seat of the valve main body so as to open and close the one or the plurality of valve ports, the valve body having a cylindrical shape and having an opening formed in an outer peripheral surface of the valve body; a gap reducing portion being provided so as to partially reduce a gap between the valve body and a member opposed to the valve body; and drive means for driving the valve body to rotate.

A valve (10) in accordance with an embodiment of the present invention includes a body (1) having a space in which a stem (3) and a ball (4) are housed, wherein an inner lid body (60) fixing the ball (4) in the space liquid-tightly partitions the space into a part in which the stem (3) is housed and a part in which the ball (4) is housed.