A valve assembly comprising a chamber, the chamber having an inlet which is adapted to be connected to a source of relatively high pressure fluid, and an outlet which is adapted to be connected to a source of relatively low pressure fluid, and a switch valve which is switchable between a first configuration in which the valve closes the outlet and opens the inlet, and a second configuration in which the valve closes the inlet and opens the outlet, characterised in that a flow control device is provided between the outlet and the volume of relatively low pressure fluid, the flow control device including a restrictor portion which restricts flow of fluid through the flow control device, the extent to which fluid flow is restricted decreasing as the fluid pressure in the chamber increases.

The disclosure relates to a valve with a pivoting lever. This lever pivots around a pivot point and can move between at least three stable positions. In the rest position, this lever is fixed and solidly connected to the body of the valve, and there is zero fluid flow in the internal fluid passage. In the intermediary released position, the axis of the lever is disposed at a positive, non-zero angle in relation to the axis of the lever in the rest position, the lever being now disconnected from the body, but the fluid flow remains zero. In the active position, the axis of the lever is disposed at a positive non-zero angle in relation to the axis of the lever in the intermediary released position, this lever being disconnected from the body, and with fluid now flowing thorough the internal fluid passage at a non-zero rate.

The disclosure relates to a valve with a pivoting lever. This lever pivots around a pivot point and can move between at least three stable positions. In the rest position, this lever is fixed and solidly connected to the body of the valve, and there is zero fluid flow in the internal fluid passage. In the intermediary released position, the axis of the lever is disposed at a positive, non-zero angle in relation to the axis of the lever in the rest position, the lever being now disconnected from the body, but the fluid flow remains zero. In the active position, the axis of the lever is disposed at a positive non-zero angle in relation to the axis of the lever in the intermediary released position, this lever being disconnected from the body, and with fluid now flowing thorough the internal fluid passage at a non-zero rate.

A valve stem ( 100 ) for use with a metered dose dispensing valve, said valve stem having a central longitudinal axis and comprising a first stem portion ( 101 ), a second stem portion ( 102 ) and a disk seal ( 112 ), said disk seal being disposed between the first and second stem portion along the longitudinal axis of the valve stem and said disk seal extending radially outwardly from the central longitudinal axis of valve stem so as to be capable of forming a fluid-tight seal with a portion of an internal wall of said valve.

The sanitary mixer valve has an adjustable control disc (2) for a fixed valve seat disc (1) which has water passage openings. A central passage (12) is provided in the valve seat disc and an overflow passage (20) is formed in the control disc and selectively brought to overlap with through-passages constructed in circular ring cut-out form. The through-passages (10,11) which are allocated for the feed of hot and cold water are each separated by a land (13), whereby both lands are positioned so that in a center mixing position with a fully open throughflow one side wall (21) of the overflow passage is in contact with a first side wall (130) of the two lands.

The dosing valve has a collection chamber (11) which is varied in volume by actuating the membrane (16), and which discharges into a valve output line (8). Enlarging the volume induces fluid by suction from the valve input line (7) only. Reducing the volume closes the first non return valve (13). The dosing piston (20) and membrane are operated together for discharge.

Liquid wax passes through an inlet valve (1) leading to a line (2) connected to a pressure regulator (3). The wax then passes through a flow measurement device (4) to a pre-atomization system (14) mixing liquid wax with air under pressure. The air enters via an inlet valve (6) leading to a line (5) connected to filters (7,8), a pressure measurement device (9) and a control valve system (22) with three 5/2-way valves (15,17,21) and two pressure regulators (16,18). The size of the droplets of wax produced by the pre-atomization system may be controlled. The wax mist may be fed through a valve (20), which admits extra air (11), to the spray lance (19).

The invention concerns an adjustable stop assembly, for limiting a stroke, designed for a piston-cylinder unit comprising a cylinder and a piston having a rod, said stop assembly serving to limit the stroke of a lifting device on a forklift truck. Said assembly has a clamping ring (2) axially slidable and lockable on the piston rod, comprising, in one region of its external periphery, a threaded portion. Said assembly also comprises a threaded ring (3) which can be screwed on the threaded portion of the clamping ring and whereof the side facing the cylinder serves as stop thereon.

A method of preparing for a filling cycle and subsequent casting of molten metal a ladle comprising a casting channel closed by a plugging valve and comprising the steps of: n- opening the valve, n- inserting from the outside a deformable shell (16a) provided with an opening through the open valve (14) inside the casting channel (27) with the opening turned towards the valve and with said shell having a maximum volume not less than that of the casting channel, n- injecting from the outside a refractory substance with fluid behavior through the opening in the shell (16a) to swell it and cause adherence of the walls of the shell to the channel wall (27), and n- closing the valve (14).

The invention relates to a pressurized can comprising a body, a valve arranged in a dome, a base (16), an inner shell (1) with detachable, push-off type cover (8) arranged on the base (16) and a movable shaft (7) arranged in a fixing element (2) and extending through the base (16) into the inner shell (1) and serving as release element for the inner shell with the inner shell (1) being connected to the base (16) via the fixing element (2), moreover comprising a piston element (3) movable in longitudinal direction of the inner shell (1) and being arranged inside the inner shell (1), the piston element yielding a sealing effect at the inner shell's (1) inner wall and interacting with the shaft (7) in such a manner that when the shaft (7) is moved into the inner shell (1) the piston element (3) causes a liquid present inside the inner shell (1) to be pressurized so that the cover (8) is forced off.