A dome pressure regulator for regulating gas pressure, having a housing (1), a fixed valve seat (10), a movable valve body (8), a closing spring (9) acting on the valve body (8), and a diaphragm (4) which is connected to the valve body (8) and which is able to be subjected to a control pressure, settable via a gas pressure spring, in the opening direction and to a secondary pressure in the closing direction. The object of the invention is to detect state parameters of the system and to integrate continuous functionality checking and logging of the collected measurement values into the pressure regulator. In order to achieve said object, the invention proposes at least one travel sensor (15), by way of which the stroke of the valve body (8) is measurable, and a sensor-system evaluation unit (17) integrated into the housing.

Pressure balancing apparatuses and methods disclosed here include embodiments with a waterproof enclosure having walls surrounding an interior chamber, a mounting interface mounted to the enclosure with a port to an outside, and a balancing module, connected to the mounting interface, the balancing module including, a balancing module housing, a valve actuator member inside the balancing module housing, with a receptacle for a pressure source. In certain embodiments the valve actuator member is configured to move in response to changes in differential pressure between a pressure in the enclosure chamber and pressure from the outside, and a module valve, inside the balancing module housing, connected to the valve actuator member, and fluidically separating the enclosure chamber from the port to the outside, wherein the module valve is configured to open and close in response to the movement of the valve actuator member.

A spring adjusting device and a valve assembly including the same. The spring adjusting device includes an adjusting screw rod, a spring, and a spring seat which is located between the adjusting screw rod and the spring. A groove is arranged in the spring seat, which can contain an end part of one end of the adjusting screw rod, and is provided with a cylindrical side wall. The spring adjusting device can prevent the end part of the adjusting screw rod from being separated from the groove, and the spring from being bent on the whole, thereby improving the overall working performance of the valve assembly.

A metering valve assembly for closing the housing of an aerosol generator includes a valve body (3) provided with a transfer chamber (31) in which is housed a valve (5) movable between a closed position and an open position, and a reservoir (4) in contact with the transfer chamber, constituted by a rigid wall (41), a flexible membrane (42), a planar peripheral edge (411) for attaching the flexible membrane and a bottom wall (413) inside the peripheral edge. A spring element (43) inside the reservoir is constituted by a curved plate having a convex face toward the flexible membrane and designed to deform toward the bottom wall (413) and to allow the flexible membrane (42) to move closer to the rigid wall when the valve is in the open position and to return to its initial shape as soon as the valve returns to the closed position.

A valve assembly capable of converting a small leak of a device into a measurable, relatively larger or burst flow event is described. In certain embodiments, the valve assembly includes a compliant chamber and, following pressurization of the device, permits flow when the pressure in the compliant chamber drops to a configured fill pressure and restricts (or prevents) flow when the pressure in the compliant chamber increases to a shut-off pressure. The disclosed valve assemblies may be incorporated into a leak detection assembly capable of transmitting usage and/or alarm data to a central service.

A balancing valve spool and a pressure regulating valve including the balancing valve spool. The balancing valve spool includes a valve rod having a first end and a second end. The valve rod defines a longitudinal axis that extends between the first end and the second end. The balancing valve spool also includes a piston sleeve fixed to the valve rod between the first end and the second end. The balancing spool valve further includes a fixing member arranged between the valve rod and the piston sleeve. The fixing member extends in a direction parallel to the longitudinal axis of the valve rod. Connecting the fixing piece to an actuator of the valve and arranging the fixing piece between the valve rod and the piston sleeve along the axial direction of the valve rod, guides the valve rod and simultaneously isolates inlet pressure and outlet pressure.

Actuating device for process valves (2) comprising a housing (22), comprising two housing parts (24, 26) and an actuating membrane member (20) sealingly mounted between housing parts (24, 26) and moveable in strokes which, on the one hand, forms together with the housing a pressurizeable working chamber (28) and, on the other hand, is loaded by at least one return spring (32) such that, in the unpressurized state, the actuating membrane member (20) is brought into a predefined position by means of the pre-tension of the return spring (32), wherein the actuating membrane member (20) is adapted to be connected to a valve shaft (18) connected to the valve body (16) of the process valve (2). A coupling installation (64) is provided having coupling parts (66, 68) arranged on both sides in the direction of the lifting movement of the actuating membrane member (20), which coupling parts are adapted to a connection (70) an the valve shaft (18) such that the connection of the valve shaft (18) with the actuating membrane member (20) is carried out by a one-sided mounting, wherein the valve shaft (18) is adapted to be connected to each of the coupling parts (66, 68) of the coupling installation (64). On the actuating device (2) a distance measuring system (48) is arranged, which comprises a connection (72) which is adapted to be connected to each of the coupling parts (66, 68) of the coupling installation (64) by means of a one-sided mounting, wherein the coupling parts (66, 68) are constructed in analogy to the corresponding connections (70, 72) for selectively fastening of the valve shaft (18) or the distance measuring system (48) to the coupling installation (64).

In a gas fuel supply regulator, a valve lever a base end of which is firmly fixed to a valve body by a pin arranged on a side of a valve seat of a valve, a rear surface at a leading end of which is supported by a control pressure set spring, and on a surface of which a rod holding recessed part that holds a rod of a diaphragm is formed is slidably arranged, a valve body is opened by fuel of before pressure reduction which fuel is introduced from a fuel inlet to a pressure regulation chamber through the valve, the valve lever is slid, the diaphragm is operated through a coupling mechanism between the rod holding recessed part of the valve lever and the rod of the diaphragm, and pressure of the fuel in the pressure regulation chamber is reduced.

In at least some implementations, a pressure regulator includes a first body, a second body coupled to the first body and a diaphragm having a portion trapped between the first body and the second body and a not trapped portion that is movable relative to the first body and second body. A stop surface is defined by the second body, and a backing member is coupled to the not trapped portion of the diaphragm for movement with the not trapped portion of the diaphragm. The backing member engages the stop surface to limit the amount the not trapped portion of the diaphragm can move toward the second body.

Some embodiments provide irrigation generator systems that include a main conduit comprising an inlet conduit and an outlet conduit; a flow control system positioned within the main conduit; a generator conduit comprising a generator inlet conduit and a generator outlet conduit, wherein the generator inlet conduit is fluidly coupled with the main conduit upstream of the flow control system, the generator outlet conduit is fluidly coupled with the main conduit downstream of the flow control system; and a generator comprising a rotor assembly cooperated with generator conduit to be physically activated by a flow of fluid through the generator conduit causing rotation of the rotor assembly and generates electrical power. The flow control system transitions between a closed state to the open state in response to a water pressure exceeding a pressure threshold.