A flow regulating switch valve includes a valve core that includes a switch assembly configured to drive a diaphragm assembly to open or close a water outlet, and also includes a flow regulating assembly that comprises a rotating ring, a sliding block, and a magnet. A control key is configured to control the switch assembly. The rotating ring is connected to the control key and includes an inclined plane that transitions from high to low and is configured to drive the sliding block to slide up and down such that the sliding block drives the magnet to move up and down. The magnet is configured to control the diaphragm assembly to regulate a size of the water outlet.

A flow regulating switch valve includes a valve core that includes a switch assembly configured to drive a diaphragm assembly to open or close a water outlet, and also includes a flow regulating assembly that comprises a rotating ring, a sliding block, and a magnet. A control key is configured to control the switch assembly. The rotating ring is connected to the control key and includes an inclined plane that transitions from high to low and is configured to drive the sliding block to slide up and down such that the sliding block drives the magnet to move up and down. The magnet is configured to control the diaphragm assembly to regulate a size of the water outlet.

A system includes a manifold and a flow control valve. The flow control valve includes an inlet defining an inlet chamber, an outlet defining an outlet chamber, and a movable member positioned in a control chamber coupled with the inlet and the outlet. The manifold includes a valve actuator, an inlet port that connects with the inlet chamber, an outlet port that connects with the outlet chamber, and a control port that connects the valve actuator with the control chamber to cause the movable member to change from a sealed state that prevents fluid flow between the inlet and the outlet to an unsealed state that allows fluid flow between the inlet and the outlet responsive to operation of the valve actuator.

A system includes a manifold and a flow control valve. The flow control valve includes an inlet defining an inlet chamber, an outlet defining an outlet chamber, and a movable member positioned in a control chamber coupled with the inlet and the outlet. The manifold includes a valve actuator, an inlet port that connects with the inlet chamber, an outlet port that connects with the outlet chamber, and a control port that connects the valve actuator with the control chamber to cause the movable member to change from a sealed state that prevents fluid flow between the inlet and the outlet to an unsealed state that allows fluid flow between the inlet and the outlet responsive to operation of the valve actuator.

A rotatable pressure relief valve assembly is provided. The assembly may comprise a butterfly valve, a spring actuator, and a diaphragm device having a flexible membrane. A linkage assembly may be provided with a first end and a second end, wherein the first end may be configured to engage with a terminal end of a piston of a spring actuator, and wherein the second end may be configured to engage with a latch arm of the diaphragm device. A pilot tube may be configured to transmit an inlet fluid pressure from the inlet side of the butterfly valve to the sealed chamber. The assembly may further comprise a buckling pin mechanism having a buckling pin. The diaphragm device may be configured to translate the inlet fluid pressure into a compressive force and to transmit the compressive force to the buckling pin, and the latch arm may be configured to disengage from the second end of the linkage assembly when the buckling pin has buckled.

A rotatable pressure relief valve assembly is provided. The assembly may comprise a butterfly valve, a spring actuator, and a diaphragm device having a flexible membrane. A linkage assembly may be provided with a first end and a second end, wherein the first end may be configured to engage with a terminal end of a piston of a spring actuator, and wherein the second end may be configured to engage with a latch arm of the diaphragm device. A pilot tube may be configured to transmit an inlet fluid pressure from the inlet side of the butterfly valve to the sealed chamber. The assembly may further comprise a buckling pin mechanism having a buckling pin. The diaphragm device may be configured to translate the inlet fluid pressure into a compressive force and to transmit the compressive force to the buckling pin, and the latch arm may be configured to disengage from the second end of the linkage assembly when the buckling pin has buckled.

A flow control device includes a housing with an inlet and an outlet and a flow conduit disposed in the housing. The inlet, the flow conduit, and the outlet define a flow passage. A valve seat is disposed in the housing downstream of the inlet, and a shuttle is movably disposed in the housing and displaceable between a closed position engaging the valve seat to close the flow passage and an open position spaced from the valve seat to open the flow passage. A sealed chamber is defined between the housing and the flow conduit. A port coupled with a source of pressurized fluid communicates with the sealed chamber, where the shuttle is displaceable between the closed position and the open position based on a pressure in the sealed chamber. The threshold water pressure for displacing the flow conduit may be adjustable by modifying the pressure in the sealed chamber.

A flow control device includes a housing with an inlet and an outlet and a flow conduit disposed in the housing. The inlet, the flow conduit, and the outlet define a flow passage. A valve seat is disposed in the housing downstream of the inlet, and a shuttle is movably disposed in the housing and displaceable between a closed position engaging the valve seat to close the flow passage and an open position spaced from the valve seat to open the flow passage. A sealed chamber is defined between the housing and the flow conduit. A port coupled with a source of pressurized fluid communicates with the sealed chamber, where the shuttle is displaceable between the closed position and the open position based on a pressure in the sealed chamber. The threshold water pressure for displacing the flow conduit may be adjustable by modifying the pressure in the sealed chamber.

Axial gas pressure regulator in which in a housing (01) is axially positioned a balanced nozzle (02), slidingly movably placed in sliding gaskets (23). Nozzle (02) is pressed by spring (10) and extension (03), while a seat (05) with a gasket (07) is mounted opposite to it, which is squeezed between the housing (01) and an outlet flange (04) and in which are performed openings (29). On the upper side of the housing (01) is mounted a carrier (30) of a second housing (21), consisting of a lower part (08) and an upper part (09), between which is squeezed a membrane (22). On the upper and lower side of membrane (22) is placed on each side one plate (33) which are in the central part connected by a support (34) and a tightener (35), and in the center of which the piston (12) is fixed with a performed choking channel (11) in the axis. The piston (12) is by its lower end slidingly movably placed, through a guide (36) and gaskets (24), in lower part (08) of the second housing (21), and by the upper end, through a guide (37) and gaskets (24), it is placed in the upper part (09) of the second housing (21). The piston (12) leans on roller (13) which is by an axle (17) rotatably placed at the end of a first lever (14), which is by its other end articulately connected with a support (30), and by its middle is articulately connected to a second lever (15). The second lever (15) is at its lower end articulately connected to a third lever (16), which is by an axle (18) is slidingly movably placed in the lower part of the carrier (30), while archly bended legs (161) of the third lever (16) comprise the nozzle (02) and, via plates (38), are slidingly movably connected to it.

Axial gas pressure regulator in which in a housing (01) is axially positioned a balanced nozzle (02), slidingly movably placed in sliding gaskets (23). Nozzle (02) is pressed by spring (10) and extension (03), while a seat (05) with a gasket (07) is mounted opposite to it, which is squeezed between the housing (01) and an outlet flange (04) and in which are performed openings (29). On the upper side of the housing (01) is mounted a carrier (30) of a second housing (21), consisting of a lower part (08) and an upper part (09), between which is squeezed a membrane (22). On the upper and lower side of membrane (22) is placed on each side one plate (33) which are in the central part connected by a support (34) and a tightener (35), and in the center of which the piston (12) is fixed with a performed choking channel (11) in the axis. The piston (12) is by its lower end slidingly movably placed, through a guide (36) and gaskets (24), in lower part (08) of the second housing (21), and by the upper end, through a guide (37) and gaskets (24), it is placed in the upper part (09) of the second housing (21). The piston (12) leans on roller (13) which is by an axle (17) rotatably placed at the end of a first lever (14), which is by its other end articulately connected with a support (30), and by its middle is articulately connected to a second lever (15). The second lever (15) is at its lower end articulately connected to a third lever (16), which is by an axle (18) is slidingly movably placed in the lower part of the carrier (30), while archly bended legs (161) of the third lever (16) comprise the nozzle (02) and, via plates (38), are slidingly movably connected to it.