A vent control valve includes: a first case shaped in a tube that forms a passage for ventilation; a movable valve object arranged in the first case to open and close the passage; an inner case arranged in the first case to support the movable valve object; a second case disposed at a lower end of the first case; a first connection mechanism defined between the first case and the inner case, the first connection mechanism connecting the first case and the inner case with each other; and a second connection mechanism defined between the first case and the second case, the second connection mechanism connecting the first case and the second case with each other.

A breather cap assembly is configured to be connected to a stand-tube used in a watering system. When the watering system is in normal operation, the breather cap assembly is configured to allow for air to flow between the outside the assembly and the stand-tube. The breather cap assembly also provides for structure which acts as a baffle to minimize the introduction of foreign material from outside the breather cap assembly into the stand-tube. When the watering system is in flushing operation, the breather cap assembly is configured to seal off the stand-tube in order to minimize the possibility of water leaving the stand-tube. The breather cap assembly further also provides for structure which acts as a baffle to collect and retain a majority of any water that does leave the stand-tube during a flushing operation.

A liquid capture valve may have a housing that physically contacts a lid and contains a floating member. The lid can have an inlet and an outlet with the outlet positioned at an apex of a sealing surface. The floating member can be configured to seal the outlet by contacting an outlet edge in response to the housing containing a predetermined volume of liquid.

A floating valve for air ventilation mounted in a vent hose connected to a surge tank of a vehicle cooling system includes: an upper port including a first hollow, wherein an upper end portion of the first hollow is connected to the vent hose; a lower port including a second hollow, wherein a lower end portion of the second hollow is connected to the vent hose at a location facing the upper port; a structure portion provided to connect the upper port and the lower port to each other in fluidical communication with the upper port and the lower port; and a floating ball provided to be movable inside the structure portion so that the floating ball floats to seal an opening of the first hollow in the upper port when cooling fluid flows into the structure portion.

A valve arrangement has a valve housing comprising lower and upper housing parts, in which a flow channel with a flow chamber is formed. A blocking device closes the flow channel. The housing parts can rotate relative to each other about a common vertical axis and are detachably connected. At least one transverse end channel section is formed in the lower housing part and extends transversely to the axis of rotation between an opening in the peripheral wall of the lower housing part for the inlet or outlet of fluid and a lower vertical channel section, and/or in the upper housing part a transversely extending end channel section is formed which extends transversely to the axis of rotation between an opening in the circumferential wall of the upper housing part for the inlet or outlet of fluid and an upper vertical channel section.

A valve device includes: a casing including a valve chamber; a valve seat disposed in the valve chamber and including a valve hole; a float disposed in the valve chamber and movable in accordance with the amount of drain in the valve chamber to thereby open and close the valve hole; and a support supporting the float in the state of being seated on the valve seat and closing the valve hole. The support includes a base including an opening and having a frame shape, and two float seats disposed in the base, and the float in the state of being seated on the valve seat and closing the valve hole is seated on the two float seats.

A float drain for an enclosure can include a basket to collect liquid from the enclosure, a sealing structure surrounding an outlet of the basket, and a float configured to seat against the sealing surface to prevent fluid flow out of the outlet and to rise off of the sealing surface due to buoyancy forces as the liquid collects in the basket. The float drain can include other features, including: ribs or other protrusions extending into an interior are of the basket to space the float apart from an inner wall of the basket; an angled orientation of the sealing surface; and a trough, at least partly defined by the sealing structure, to collect debris.

A sealing valve is provided for a sensor that includes a sensing element and a sensor opening that exposes the sensor element. The sealing valve includes a housing that is configured to be mounted to the sensor such that an internal channel of the housing fluidly communicates with the sensor opening. The sealing valve includes a float element configured to float along a surface of the liquid. The float element is configured to move within the internal channel between an open position and a closed position. The float element is configured to close the sensor opening to the internal channel in the closed position. The sensor opening is open to the internal channel when the float element is in the open position. The float element is configured to rise with the surface of the liquid within the internal channel toward the closed position.

A sealing valve is provided for a sensor that includes a sensing element and a sensor opening that exposes the sensor element. The sealing valve includes a housing that is configured to be mounted to the sensor such that an internal channel of the housing fluidly communicates with the sensor opening. The sealing valve includes a float element configured to float along a surface of the liquid. The float element is configured to move within the internal channel between an open position and a closed position. The float element is configured to close the sensor opening to the internal channel in the closed position. The sensor opening is open to the internal channel when the float element is in the open position. The float element is configured to rise with the surface of the liquid within the internal channel toward the closed position.

A valve (104) includes: a valve body (200) having a valve chamber (204), a seat (226) formed by an interior surface of the valve body, and one or more flow directing features (228, 230) formed about the seat; a float ball (224) disposed within the valve chamber, wherein the one or more flow directing features formed about the seat are configured to allow fluid flow therethrough when the float ball is seated at the seat; and a seal (216) disposed within the valve body, wherein when liquid enters the valve chamber and reaches a particular level within the valve chamber, the float ball is configured to float on the liquid until it reaches the seal, thereby scaling the valve chamber.