An inductive shower head, comprising an outer shell which is provided with a water inlet and multiple groups of water outlet holes; a third water outlet cavity and a first water outlet cavity which are independent of each other inside the outer shell can be communicated with the corresponding groups of the water outlet holes respectively, a third water inlet cavity is arranged between the first water inlet cavity and the third water outlet cavity; the first water inlet cavity is communicated with the third water inlet cavity; the position where the third water inlet cavity is communicated with the third water outlet cavity is correspondingly provided with a control assembly which uses an electromagnet to control the two cavities to communicate with or block from each other; the shower head also comprises a first inductor and a power supply unit which is used for supplying power to the electromagnet.

A valve including a valve body having a fluid inlet and a fluid outlet, the valve body comprising a first valve element and a second valve element arranged in a housing. A gap is formed between the valve elements, the first valve element being conformed as a sleeve with an inner surface that tapers at least in sections towards the fluid outlet, the second valve element being conformed as a cone mounted in the sleeve, with the same inclination as the inner surface of the sleeve so as to form the gap. Additionally, an annular space open to the fluid outlet is formed between the sleeve and the inner surface of the housing. The sleeve has through holes towards the annular space and the cone has through openings towards the fluid inlet, the sleeve and the cone being axially adjustable relative to one another.

A valve for a well system including a valve housing including a first housing port, a second housing port, and a bore, a piston received in the bore and including a first end, a second end, and an annular flange including a first annular surface and a second annular surface both of which are in fluid communication with the second housing port, a piston seal disposed in the outer surface of the piston and in sealing engagement with an inner surface of the bore, and a cage assembly that includes a cage including a bore, a first cage port, a second cage port, and a third cage port, and a spool disposed in the cage and coupled to the piston, the spool including a throughbore.

A fluid control valve includes a cylindrical housing with at least one opening through a housing wall, a cylindrical main valve axially movably arranged inside the housing for controlling a fluid flow through the at least one opening and a main valve spring member acting on the main valve. The main valve includes a base wall defining a fluid control volume and fluid main volume in the cylindrical housing. The base wall includes an opening for fluidly connecting the fluid control volume with the fluid main volume. The fluid control valve further includes a pilot valve positioned at the base wall opening, which pilot valve is moveably arranged for controlling a fluid flow through the base wall opening, and an electro-mechanical actuator configured to act on the pilot valve for controlling the main valve via the pilot valve. A method for adjusting the axial position of a cylindrical main valve of a fluid control valve is also provided.

A cage valve, flow trim components, and method for signalling erosion of flow trim. The valve is of the type having flow trim arranged across an inlet bore and aligned with an outlet bore, and including a stationary tubular cage and an internal or external flow control member such as a plug or flow collar slidable along the side wall of the cage to cover or uncover flow ports in the side wall. The flow control member includes an end plate which closes an upstream end of the cage. A cavity is formed in the flow control member upstream of the end plate. A transmitter, such as a proximity beacon, positioned in the cavity transmits a first signal indicative of intact flow trim when no fluid is in the beacon cavity and transmits a zero value signal or no signal indicative of eroded flow trim when fluid enters the cavity.

A feedback throttle (54) increases the opening amount between a feedback flow passage (49) and a back pressure chamber (47) as a main valve (43) is displaced in the direction away from a main valve seat (46). The feedback throttle (54) has a boundary portion K that divides a section where the opening amount of the feedback throttle (54) changes such that a ratio of change in the opening amount of the feedback throttle (54) to a displacement of the main valve (43) in the direction coming closer to the main valve seat (46) becomes smaller. The boundary portion K is located in a displacement area of the main valve (43) corresponding to a position where an opening portion of a main valve throttle (53) is shut off with respect to the displacement of the main valve (43) in the direction coming closer to the main valve seat (46).

To provide a regulating valve of which stability of an operation is high, a regulating valve is disclosed that includes a valve box in which a first flow channel and a second flow channel are formed; a cage having a first throttle portion provided in a boundary between the first flow channel and the second flow channel; a plug head having a second throttle portion slidably inserted into an inside of the cage; and a guide ring slidably holding a plug guide holding the plug head. In a closed state of the regulating valve, a distance between a through-hole of the first throttle portion and an end portion of the plug head on the other end side is equal to a distance between a through-hole of the second throttle portion and an end portion of the cage on the opened one end side.

To provide a regulating valve whose stability of an operation is high,a regulating valve is disclosed that includes a valve box in which a first flow channel and a second flow channel are formed, a cage having a first throttle portion provided in a boundary between the first flow channel and the second flow channel, a plug head having a second throttle portion slidably inserted into an inside of the cage, and a guide ring slidably holding a plug guide holding the plug head. In a closed state of the regulating valve, a distance between a through-hole of the first throttle portion and an end portion of the plug head on the other end side is shorter than a distance between a through-hole of the second throttle portion and an end portion of the cage on the opened one end side.

Multi-port valve for controlling a medium in a refrigerant circuit of a refrigeration system. A stroke movement of the valve body along an axis is controllable by an actuating element of a drive. The valve body is tubular and extends along the stroke axis and, in a first end position of the stroke movement, passes through at least one first pressure chamber between an inlet and an outlet and at least one further pressure chamber between the inlet and at least one further outlet. At least one seal is associated with each pressure chamber for abutment against the valve body.

A regulating assembly with a valve stem and a valve plug is configured for use in a valve. The configurations may optimize natural frequency to address concerns that operators have with vibrations in devices on their process lines. The valve plug may have a body that narrows from the top and the bottom towards its midline to form an hourglass shape. Reinforcing structure may find use to strengthen or stiffen the body without adding additional mass to the device. This reinforcing structure may include ribs, for example, that circumscribe the center axis. A matrix or lattice structure may prevail as the reinforcing structure as well.