A faucet for dispensing beverages includes a valve element that is selectively moved from its seated position to its unseated position by manual linear movement of a handle in a first direction from a retracted position toward an extended position. Movement of the handle in the first direction induces movement of the valve element in the first direction. A shaft projects through the handle and an outer end of the shaft provides a reaction structure or button that is engaged by a thumb of a user during movement of the handle from its retracted position toward its extended position. When in its extended position, the handle can be rotated to a lock-open position where interference between the handle and the faucet body prevents movement of the handle from its extended position to its retracted position whereby the faucet is maintained in an opened condition for continuous dispensing of liquid.

A valve diaphragm processed by cold working a small concentric region of one surface has a permanent axisymmetric deformation. The deformed diaphragm can be used in a manner which causes continual elastic compression loading of the diaphragm material. The loading of the deformed diaphragm provides a valve restoring spring force and simultaneously defeats diaphragm tendency toward exhibiting hysteresis. The restoring force provided by the diaphragm can also lessen actuator hysteresis.

[Object] A diaphragm can strongly be fixed to a flow path-side body by a diaphragm-holder, a thickness of the flow path-side body of an outer periphery of a diaphragm is thinned, and the flow path-side body is downsized. [Solving Means] A diaphragm-holder abutting surface 75 is formed between a diaphragm-holder inner peripheral side ring-shaped projection 73 and a diaphragm-holder outer peripheral side ring-shaped projection 74, a diaphragm-holder inner peripheral side end surface 73s is abutted against a first fixed portion piston-side end surface 63Ap, a diaphragm-holder inner peripheral side outer peripheral surface 73o is abutted against a second fixed portion inner peripheral surface 63Bi, a diaphragm-holder outer peripheral side inner peripheral surface 74i is abutted against a body-side projection outer peripheral surface 16o, and the diaphragm-holder abutting surface 75 is abutted against the second fixed portion piston-side end surface 63Bp and a body-side projection end surface 16s.

A fluid shut-off device has a valve body delimiting an inlet duct and an outlet duct and having an intermediate portion delimiting an intermediate chamber that provides fluid connection between the inlet and outlet ducts. The inlet duct has an inlet duct connection edge. The intermediate chamber has a sealing surface and accommodates a diaphragm having a diaphragm sealing portion that in a closing position of the inlet duct, cooperates, by a diaphragm support surface, with the sealing surface to occlude the inlet duct. The diaphragm has a diaphragm bending portion permanently connecting the diaphragm sealing portion to the valve body to exclusively operate under bending. The diaphragm sealing portion delimits a diaphragm seat. A control element has a control stem with predetermined transverse control stem dimension and integrally received in the diaphragm seat, which transmits movement to the diaphragm sealing portion at least between the closing position and an opening position of the inlet duct.

A component feed nozzle includes a housing, which has a component inlet and a component outlet, a piston-shaped closing body, which is slidably supported in the housing and which can be moved back and forth axially. The component outlet is closed by the front end of the closing body in a first position and the component outlet is released or opened in a second position. The component feed nozzle has a membrane seal, which is fastened to the rear end of the closing body and to the housing in such a way that the closing body is completely on one face of the membrane seal. The housing and/or the closing body are designed in such a way that the component reaches all surfaces of the closing body and thus the component pressure is applied to the complete effective surface of the membrane.

A fluid control valve includes a passage block formed with a passage, a valve seat provided in the passage block, and a valve element to be brought into contact with or separated from the valve seat. The fluid control valve is configured to open and close the passage by movement of the valve element with respect to the valve seat to control a fluid. The fluid control valve further includes a shape-changeable part which changes its shape in association with the movement of the valve element. The shape-changeable part has a surface formed with a monomolecular film of fluorosilane material.

A fluid control valve includes a passage block formed with a passage, a valve seat provided in the passage block, and a valve element to be brought into contact with or separated from the valve seat. The fluid control valve is configured to open and close the passage by movement of the valve element with respect to the valve seat to control a fluid. The fluid control valve further includes a shape-changeable part which changes its shape in association with the movement of the valve element. The shape-changeable part has a surface formed with a monomolecular film of fluorosilane material.

A valve for controlling fluid flow from an inlet of a pipe fitting to at least one outlet of the pipe fitting at an angle to the inlet. The pipe fitting includes an inner collapsible bellows fixed at a position opposite the inlet. The bellows has a support annulus at the other end adjacent the inlet, whereby, in a closed position, the bellows prevents fluid flow from the inlet to the at least one outlet as the fluid is trapped within the bellows. In an open position, the fluid can flow from the inlet to the at least one outlet when the bellows is collapsed.

A faucet for dispensing beverages includes a valve element that is selectively moved from its seated position to its unseated position by manual linear movement of a handle in a first direction from a retracted position toward an extended position. Movement of the handle in the first direction induces movement of the valve element in the first direction. A shaft projects through the handle and an outer end of the shaft provides a reaction structure or button that is engaged by a thumb of a user during movement of the handle from its retracted position toward its extended position. When in its extended position, the handle can be rotated to a lock-open position where interference between the handle and the faucet body prevents movement of the handle from its extended position to its retracted position whereby the faucet is maintained in an opened condition for continuous dispensing of liquid.

An electromagnetically operated valve, comprises a valve slide with a magnet armature, which is equipped to close a sealing seat in a fluid channel of the valve with a first axial end in a closed position, as well as a sealing element with folded bellows situated between the sealing seat and the first axial end of the valve slide and separates the valve slide from the fluid channel with a fluid-tight seal. The magnet armature is supported in the valve in an essentially non-contact manner due to the fact that the valve slide has a guide pin protruding in the axial direction from the magnetic armature on a second axial end opposite the first axial end, the guide pin being supported to slide in the axial direction; and the valve slide is aligned in the radial direction on a side of the magnet armature facing the first axial end of the valve slide and is supported so it is movable in the axial direction by means of at least one spring element.