The present invention is a flow-rate adjustable valve for adjusting a flow rate of liquid flowing through a flow path. The flow-rate adjustable valve includes: a main valve body; a back pressure chamber; an inlet hole; an outlet hole; a pilot valve body for opening and closing an end of the outlet hole on a side of the back pressure chamber; an elongated member holding the pilot valve body; and a lifter rotatable and also movable in the axial direction of the elongated member by the rotation of the rotatable member. The lifter and the elongated member are integrally movable in the axial direction. The elongated member is connected to the lifter under a condition in which the elongated member is biased to the lifter in a one-way direction of the axial direction by a biasing-connecting member.

The present invention is a flow-rate adjustable valve for adjusting a flow rate of liquid flowing through a flow path. The flow-rate adjustable valve includes: a main valve body movably supported in the flow path via a diaphragm membrane; a back pressure chamber; a plurality of inlet holes communicating the upstream side of the flow path with the back pressure chamber; an outlet hole communicating a downstream side of the flow path with the back pressure chamber; and a pilot valve body for opening and closing the outlet hole, wherein moments acting on the main valve body based on the liquid flowing into the back pressure chamber through the plurality of inlet holes are canceled by each other in total, under a condition in which the pilot valve body opens the outlet hole.

A valve includes a valve body provided with a plug, connected to an actuation system, an upstream duct, a downstream duct, and a purge duct provided with a shutter. The plug is movable in rotation about a longitudinal axis in the valve body, so that the rotation of the plug according to a first angular sector defines a flow between the upstream duct and the downstream duct, the rotation of the plug according to a second angular sector separate from the first angular sector shuts off the connection between the upstream duct and the downstream duct, and the rotation of the plug according to a third angular sector included in the second angular sector actuates the shutter so as to allow a flow from the upstream duct to the purge duct.

A valve for applying an emergency brake of a rail vehicle includes a valve housing, an actuation member to be activated by a user, an actuation rod connecting the actuation member with a valve head, wherein the valve head is adapted to abut on a valve seat, a guidance for guiding the actuation rod being provided within the valve housing, and a first spring adapted to push the valve head against the valve seat, wherein the actuation rod includes a first groove and a second groove, and wherein a first following member is provided between the actuation rod and the guidance, being adapted to stably rest in the first groove or the second groove.

A reusable vessel comprises a first compartment to store therein a substance and a second compartment separated from the first compartment by a boundary element comprising a wall or membrane having one or more apertures therein. A valve is movable between a closed position, in which the valve seals the one or more apertures, and an open position allowing the substance to be released from the first compartment into the second compartment, or a substance in the second compartment to mix with the substance in the first compartment. A triggering mechanism is coupled to the valve to move the valve between the open and closed positions. The triggering mechanism comprises one or more external elements coupled to one or more internal cam elements to control the valve, which, when triggered causes the one or more external elements to exhibit a visible change to indicate the open and closed positions of the valve.

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring.

A valve for compressed gas, comprising a body extending longitudinally, with a gas inlet at a lower end of the body, a gas outlet and a gas passage fluidly interconnecting the gas inlet and the gas outlet; a shut-off device housed in the body and configured for selectively shutting-off and opening the gas passage; a lever pivotally mounted on the body, at an upper end of the body, and configured for actuating the shut-off device; a hook pivotally mounted on the lever for engaging with a counter-shape on the body and thereby holding the lever in a folded position along the body; wherein the upper end of the body comprises a cylindrical wall delimiting an upper bore, the counter-shape being an upper edge of the cylindrical wall.

A valve cartridge may include an outer cylindrical body and an inner cylindrical body disposed in a channel formed by the outer cylindrical body. The outer cylindrical body may include a wall that defines the channel. The outer cylindrical body may include a ramped slot. The ramped slot may extend angularly from a first angular position on the wall to a second angular position. The ramped slot may extend longitudinally from a first longitudinal position on the wall to a second longitudinal position. The inner cylindrical body may include a handle interface approximate to a first end of the inner cylindrical body. The inner cylindrical body may include a pin extending radially from the inner cylindrical body and into the ramped slot. The inner cylindrical body may include a valve seat at a second end of the inner cylindrical body.

A fluid manifold apparatus, in particular a water distribution apparatus, comprises a fluid chamber, at least one fluid inlet, a plurality of fluid outlets, and a manifold unit, including a plurality of valve units for closing the fluid outlets and a camshaft supported to be rotatable about a rotary axis, comprising a plurality of lobes for operating the valve units, wherein each of the valve units has a cam follower and a sealing unit, and the lobes of the camshaft are provided to lift the cam followers of the valve units as a function of a rotary position of the camshaft.

Each of the cam followers has a receiver for receiving one sealing unit, wherein the sealing units are arranged to be linearly moveable in the receivers.

To provide a manual valve device suitable for a miniaturized and integrated fluid control system, the manual valve device includes a casing having a tubular shape and incorporating a drive mechanism, an operation member for activating the drive mechanism, and a cam part that converts a force acting on the operation member into a driving force of the drive mechanism. The manual valve device further includes a protective cover provided on an upper end side of the casing and covering at least a portion of the operation member. The operation member includes an attaching part that allows removable attaching of an auxiliary tool for causing a force required for activation of the drive mechanism to act on the operation member. The protective cover is formed so as to allow access to the attaching part of the operation member by the auxiliary tool.