A fluid distributor comprising: a fluid inlet, a first outlet connected to the inlet by a first fluid communication channel, a second outlet connected to the inlet by a second fluid communication channel, an actuator comprising a movable piston capable of moving between an initial position and a switched position; a first deformable diaphragm, in contact with the first end of the piston, and configured to close the first channel when the piston is in its switched position; a second deformable diaphragm, in contact with the second end of the piston, and configured to close the second channel when the piston is in its initial position.

Provided is a flow rate regulating device including a valve body section having a flat valve body surface; a main body section including a valve chamber, an inflow channel, an outflow channel, and a communication channel; a valve seat section having a flat valve seat surface provided around an inflow opening; a regulation mechanism that moves the valve body section along an axis to regulate a distance between the valve body surface and the valve seat surface; and a control unit that controls the regulation mechanism so that the valve body section moves in a movement range in which the valve body surface and the valve seat surface maintain a non-contact state, wherein a channel cross-sectional area of the communication channel is smaller than each of a channel cross-sectional area of the inflow channel and a channel cross-sectional area of the outflow channel.

Provided is a flow rate regulating device including a valve body section having a flat valve body surface; a main body section including a valve chamber, an inflow channel, an outflow channel, and a communication channel; a valve seat section having a flat valve seat surface provided around an inflow opening; a regulation mechanism that moves the valve body section along an axis to regulate a distance between the valve body surface and the valve seat surface; and a control unit that controls the regulation mechanism so that the valve body section moves in a movement range in which the valve body surface and the valve seat surface maintain a non-contact state, wherein a channel cross-sectional area of the communication channel is smaller than each of a channel cross-sectional area of the inflow channel and a channel cross-sectional area of the outflow channel.

An anti-free-flow valve includes a tube and a membrane. The tube extends from a first end of the tube to a second end of the tube. The tube defines a hollow cavity. The membrane is attached to an interior surface of the tube and extends across the hollow cavity to obstruct fluid flow through the hollow cavity. The membrane is spaced apart from the first and second ends of the tube. The membrane defines a slit therethrough that is configured to transition from a closed state that restricts fluid flow to an open state that permits fluid flow through the slit responsive to compression or expansion of the tube proximate to the membrane.

An anti-free-flow valve includes a tube and a membrane. The tube extends from a first end of the tube to a second end of the tube. The tube defines a hollow cavity. The membrane is attached to an interior surface of the tube and extends across the hollow cavity to obstruct fluid flow through the hollow cavity. The membrane is spaced apart from the first and second ends of the tube. The membrane defines a slit therethrough that is configured to transition from a closed state that restricts fluid flow to an open state that permits fluid flow through the slit responsive to compression or expansion of the tube proximate to the membrane.

A flush valve includes a valve housing defining a fluid passageway between a fluid inlet and a fluid outlet. The fluid passageway includes a diaphragm valve seat disposed between the fluid inlet and the fluid outlet. The flush valve additionally includes a diaphragm assembly including a diaphragm and a disc. The diaphragm includes a primary opening and a bypass opening. The primary opening receives the disc therein and the bypass opening allowing water under pressure supplied to the fluid inlet to pass from a fluid inlet side of the diaphragm into a chamber in the fluid passageway. The flush valve additionally includes a relief valve configured to selectively control fluid flow from the chamber to the fluid outlet. The relief valve comprises a stationary valve element and a rotatable valve element each having at least one opening and being rotationally positionable relative to one another to regulate fluid flow.

A flush valve includes a valve housing defining a fluid passageway between a fluid inlet and a fluid outlet. The fluid passageway includes a diaphragm valve seat disposed between the fluid inlet and the fluid outlet. The flush valve additionally includes a diaphragm assembly including a diaphragm and a disc. The diaphragm includes a primary opening and a bypass opening. The primary opening receives the disc therein and the bypass opening allowing water under pressure supplied to the fluid inlet to pass from a fluid inlet side of the diaphragm into a chamber in the fluid passageway. The flush valve additionally includes a relief valve configured to selectively control fluid flow from the chamber to the fluid outlet. The relief valve comprises a stationary valve element and a rotatable valve element each having at least one opening and being rotationally positionable relative to one another to regulate fluid flow.

Provided is an actuator including a ball-type thrust amplifier therein that controls a valve in which a high-pressure fluid flows, and having less wear between members and a long lifespan. This actuator for a valve includes a thrust amplification mechanism therein, in which the thrust amplification mechanism includes a disk, a ball presser, a stem, and a plurality of balls that are sandwiched by and in contact with an upper surface of the disk, a tapered surface of the ball presser, and a tapered surface of the stem and disposed to move outward as the stem moves downward, the surfaces of the parts constituting the thrust amplification mechanism are coated with grease containing an additive, and the additive of the grease includes at least chloroalkane.

The diaphragm boss is fixed such that the shaft part and the enlarged-diameter part are exposed upwardly. The diaphragm member is held with an air suction force by a robot arm apparatus having an air suction part such that the small-diameter concave part and the large-diameter concave part are exposed downwardly. By controlling the robot arm apparatus, the diaphragm member is brought into contact with the diaphragm boss while tilting an axis of the diaphragm member with respect to an axis of the diaphragm boss. By controlling the robot arm apparatus, the small-diameter concave part and/or the large-diameter concave part of the diaphragm member are pressed against the diaphragm boss while rotating the diaphragm member around the axis of he diaphragm boss, so that the enlarged-diameter part is fitted into the large-diameter concave part and the shaft part is fitted into the small-diameter concave part.

A valve (1) for a sanitary faucet, comprising: a liquid duct (2) having at least one inlet (3) and at least one outlet (4) for a liquid; a diaphragm valve (5) having a diaphragm (6) and a counterpressure chamber (7) connected to the at least one inlet (3); and a control rod (8) for controlling the diaphragm valve (5), wherein a push button (9) can be used to adjust the control rod (8) between a closed position, in which the diaphragm valve (5) is closed, and an open position (10), in which the diaphragm valve (5) is at least partially open, wherein a rotary handle (11) can be used to adjust the control rod (8) in the open position (10) between a minimum flow position (12), in which a minimum flow rate of the liquid flows through the at least one outlet (4), and a maximum flow position (13), in which a maximum flow rate of the liquid flows through the at least one outlet (4), and wherein the minimum flow position (12) of the control rod (8) can be variably adjusted.