The present invention provides a flow apparatus (10) for a vessel storing fluid under pressure having a flow control valve (12) having a housing (14) and an outlet aperture (16) and further including a valve seat (18) and a sealing member (20) for sealing against said seat (18) such as to obturate said outlet (16), said apparatus further including an actuator (22) connected to said sealing member (20) for moving it between an open position of the valve in which it unobturates the outlet aperture (16) and a closed position in which it obturates said outlet, characterized by an electrical switch (24) for controlling the supply of electrical current to one or more electrical components (25) and wherein said switch is operably connected to said sealing member (20) to allow for the passage of current when said valve (12) is in a first position and to restrict the flow of current when said valve (12) is in a second position. Such an apparatus may be used to control the flow of gas from a gas bottle and to ensure that electricity is only supplied when needed, thus prolonging battery life and reducing maintenance.

A valve comprising a first chamber (111) and a second chamber (112), wherein a movable member (204) is arranged to selectably bring the first and second chambers into and out of fluid communication with one another, the movable member arranged such that when in an open position wherein the first and second chambers are in fluid communication, gas at a first pressure in the first chamber provides a closing force to a first surface area (222) of the movable member to overcome an opening force provided by gas at a second pressure in the second chamber on a second surface area (223) of the movable member whereby the movable member moves to a closed position to isolate the first and second chambers, and further arranged wherein as the movable member moves to the closed position, the second surface area of the movable member exposed within the second chamber is reduced thus reducing the opening force provided by the gas at the second pressure and providing a bias towards the closed position.

A pressure regulating valve to regulate a pressure of fuel gas includes a valve seat, a valve element movable into or out of contact with the valve seat to shut off or allow a flow of fuel gas, and a piston placed facing the valve element by interposing the valve seat and being located downstream of the valve element in a flowing direction of the fuel gas. The pressure regulating valve further includes a holder placed more upstream than the valve element in the flowing direction of fuel gas. The holder includes a bottom-closed cylindrical part opening toward the upstream side, and a through hole formed through the bottom-closed cylindrical part from its inner peripheral surface to outer peripheral surface.

Valve for pressurized fluid, comprising a body housing a fluid circuit that has an upstream end and a downstream end, the circuit including a valve mechanism for controlling the flow rate, the valve mechanism being controlled by a lever mounted on the body housing so as to pivot between a rest position, a first state, and an active position, a second state, the lever including a gripping portion extending in a longitudinal direction between a lower terminal end and an upper terminal end, the gripping portion being configured to be handled, the lever also including a mounting portion mounted on the body in an articulated manner at at least one rotation axis, the mounting portion being connected to the gripping portion and extending transversely with respect to the gripping portion, wherein the mounting portion is connected to the gripping portion at a central part of the gripping portion.

The present invention is directed to a self-aerating valve (1) comprising a valve body (2) with an aperture (3), and a valve flap (4) swivel-mounted to the valve body (2). The valve flap (4) is particularly configured to swivel between a closing position for closing the aperture (3), and an opening position for opening the aperture (3). Further, the self-aerating valve (1) comprises an air-supply port (5) connectable to an air-supply (12). The valve flap (4) is designed to release air supplied to the air-supply port (5) into the aperture (3) of the valve body (2) in the closing position. Preferably, the valve flap (4) is designed to release the air through its whole surface area (6), wherein the surface area (6) comprise a porous membrane (7) fluidly connected to the air-supply port (5). The self-aerating valve 1 may be used in an aerating system (11) of the present invention, which includes also an air-supply (12) fluidly connected to the air-supply port (5). The aerating system (11) may further comprise a drying unit (13) of the air-supply (12) adapted to dry and preferably also cool air supplied through the air-supply (12) to the air-supply port (5).

A valve delimiting an internal circuit extending between an upstream end and a downstream end, the valve including, arranged in series in the internal circuit; an isolation valve and a dust valve, the isolation valve being movable relative to a set between an upstream closed position of the circuit and at least one downstream open position of the circuit. The isolation valve being biased toward the upstream position by a return member, the dust valve having a downstream end and being arranged downstream of the isolation valve and being movable relative to the body between an upstream closed position of the upstream end of the circuit and at least one downstream open position of the upstream end of the circuit.

An initiator for opening a pressurized gas cylinder is disclosed herein. The initiator includes a housing having a first end and a second end, a lance disposed within the housing, the lance configured to slide from the first end of the housing to the second end of the housing and out through the second end of the housing, a spring disposed within the housing between the first end of the housing and the lance, and a wire coupled to the first end of the housing and to the lance, the wire configured to hold the spring in a compressed state, the wire further configured to break in response to an electric current.

A pressure regulating valve to regulate a pressure of fuel gas includes a valve seat, a valve element movable into or out of contact with the valve seat to shut off or allow a flow of fuel gas, and a piston placed facing the valve element by interposing the valve seat and being located downstream of the valve element in a flowing direction of the fuel gas. The pressure regulating valve further includes a holder placed more upstream than the valve element in the flowing direction of fuel gas. The holder includes a bottom-closed cylindrical part opening toward the upstream side, and a through hole formed through the bottom-closed cylindrical part from its inner peripheral surface to outer peripheral surface.

A flow direction restriction valve mechanism unit includes a pressure decreasing valve assembly that is located to be freely advance or retract in a combination valve cassette attached to an in-outlet secondary side flow path formed on the side of an outlet with respect to an intermediate transmission member in a flow path, and retracts by a pressure of gas; a first coil spring urging the pressure decreasing valve assembly in a retracting direction; a check valve that is located to be freely advance or retract with respect to the pressure decreasing valve assembly, and retracts by a pressure of the gas; and a second coil spring urging the check valve in an advancing direction. A gas induction passage H is formed in which the gas flows and acts on the pressure decreasing valve assembly such that the pressure decreasing valve assembly moves in the advancing direction.

A pressure-driven valve is disclosed. The valve includes a housing, a fluid flow channel, and a deflectable portion. The housing comprises a fluid inlet and a fluid outlet. The fluid flow channel extends between the fluid inlet and the fluid outlet. The deflectable portion is disposed within the housing, and defines a portion of the fluid flow channel. The deflectable portion is configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet. The deflectable portion is disposed and arranged to deflect as a result of pressure differentials between a reference pressure, a fluid flow channel pressure, and an outlet pressure representative of fluid pressure at the fluid outlet.