A shower head with an inner core includes a shower head body, an inlet valve core assembly, an inner core assembly, and a water outlet panel. The inlet valve core assembly is fitted in an inlet valve chamber of the shower head body. A return spring of the inlet valve core assembly abuts against an inner wall of the inlet valve chamber and one end of an inlet valve core. The inner core assembly is detachably fitted inside an inner core chamber. The water outlet panel is connected with the shower head body and provided with a functional water chamber communicating with a water outlet passage. The shower head can prevent the inner core assembly from flying out of the inner core chamber due to the impact of the water flow to hurt the user.

A spray wand for dispensing liquids includes a handheld housing having an elongated outer tube and an inner tube positioned within the outer tube. The inner tube is partially slidable within the outer tube and includes a liquid-tight seal between the inner tube and the outer tube. The spray wand also includes a thumbwheel rotatably secured within a central void in the handheld housing. The inner tube is positioned at least partially within the central void. The thumbwheel has an inner circumferential surface that is threadably engaged with a threaded outer surface of the inner tube. Rotating the thumbwheel in a first direction translates the inner tube toward a distal end of the outer tube, while rotating the thumbwheel in a second direction translates the inner tube away from a distal end of the outer tube, which resultingly adjusts the spray pattern of the liquid exiting the spray wand.

A digital water timer may include a main body, a water valve, a locating base, a driving base, and a timer. The main body has a water inlet and a water outlet, and a valve tube protrudes from a lateral side of the main body. The water valve connected to the main body is controlled by the timer to achieve on/off operation of channels inside the main body. The locating base is secured on the main body, and the driving base is adapted to have rotation relative to the locating base and be secured at a specific position after rotated. The timer installed in the driving base comprises a display panel and an operation interface which are exposed externally for operation. The driving base with the timer is rotated relative to the locating base, and the display panel is adjusted as needed to provide an optimal view for operation.

A pressure regulator for controlling flow of a fluid therethrough is provided. An upper housing member and a primary diaphragm define an upper chamber and a lower housing member and the primary diaphragm define a lower chamber. The pressure regulator further includes: a valve assembly provided within the upper chamber for controlling the flow of the fluid from an inlet body into the upper chamber; a secondary diaphragm provided within the lower chamber and defining a secondary diaphragm driving chamber; and a passageway connecting the inlet body and the secondary diaphragm driving chamber. During operation, the secondary diaphragm driving chamber is filled with the fluid at the inlet pressure, thereby subjecting the secondary diaphragm to the inlet pressure and generating the force for actuating the valve's disengagement from the inlet body. The pressure regulator functions to maintain the outlet pressure at a value that is a predetermined fraction of the inlet pressure.

A water outlet device with water stop and flow rate control comprises a body, a water stop assembly, and a flow rate control assembly. The body comprises a water outflow passage. The flow rate control assembly and the water stop assembly are disposed on the body, first ends of the water stop assembly and the flow rate control assembly are respectively disposed in the water outflow passage, and second ends of the water stop assembly and the flow rate control assembly are exposed out of the body to respectively define a water stop operation end and a flow rate control end. The water stop assembly comprises a first shaft that is operatively connected to the water stop operation end. The flow rate control assembly comprises a second shaft that is operatively connected to the flow rate control end.

Embodiments of the invention provide a push valve assembly. The push valve assembly includes a valve piston that is movable within a valve body between a fully opened position and a fully closed position, passing through an intermediate rinsing position, to selectively provide pressurized fluid through flow paths defined by the position of the valve piston.

A method of detecting fluid flow through a solenoid valve in a fluid application system includes dispensing fluid through the solenoid valve, de-energizing a solenoid coil of the solenoid valve to close the solenoid valve and control a fluid flow through the solenoid valve, determining a closing time of the solenoid valve based on a signal from a poppet measuring sensor, determining a time delay between the de-energizing the solenoid coil and the closing time, and determining a fluid flow value based on the time delay.

A valve including a body having an inner central orifice and a chamber, a piston formed by a rod and by a head mounted in the chamber, the rod extending outside the body and moving in a bore of an application system. The valve includes a first sealing device around the rod on one side of the valve where the rod extends outside the body, part of the chamber being filled with a pressurized control fluid to obtain movement of the piston against the force of a spring housed in the body. The valve includes a second sealing device around the rod, between the first sealing device and the chamber. The valve includes a vent duct in the rod that communicates with the inner central orifice between the first and second sealing devices and emerges in the open air or in part of the chamber communicating with the open air.

Valve for a system for applying a covering product, including projecting or recessed shapes on a peripheral part, configured to cooperate with projecting or recessed shapes of a dedicated mounting and dismounting tool, these projecting or recessed shapes of the valve being configured to transmit a rotational movement to the valve, and to be secured to the tool. The projecting or hollow shapes of the valve include a first peripheral profile having at least one planar surface, and a second peripheral profile located behind the first profile relative to an outer end of the valve. The second profile has at least one first planar surface aligned with the planar surface of the first profile, and at least one second planar surface angularly offset relative to the planar surface of the first profile, such that the second planar surface of the second profile forms a shoulder relative to the first profile.

A method and detection system for determining volumetric parameters of liquid within a container using the diffusion of a reference amount of gas are described The method includes filling a first tube with gas to a reference pressure, allowing the gas to diffuse to the container, and measuring a first stable pressure of the gas. The container is then filled with an amount of the liquid and the first tube is filled with gas to the reference pressure. The supply of gas diffuses to the container and a second stable pressure of the gas is measured. Then, a portion of the amount of the liquid is discharged from the container and the first tube is filled with gas to the reference pressure. The supply of gas diffuses to the container, an instantaneous pressure of the supply of gas is detected, and an instantaneous volume of the liquid within the container is calculated.