An acetal co-polymer valve body and/or spin ring in a solenoid operated dishwasher or washing machine valve has been found to reduce a likelihood of breaking when subjected to freezing and thawing conditions over the polypropylene and glass filled nylon components normally employed in the marketplace.

A pressure regulation valve including a pilot stage valve with a ball valve body and a conical seat. A shock absorber with at least one pressure regulation valve.

A pressure regulation valve including a pilot stage valve with a ball valve body and a conical seat. A shock absorber with at least one pressure regulation valve.

An electrically-operated ON/OFF valve for a high pressure hydrogen tank for an automotive fuel cell system has a valve body, a solenoid group, a first gate that achieves a first-stage seal, and a sealing element provided with a main sealing surface to achieve a second-stage seal. The first-stage seal and the second-stage seal are both achieved by the sealing element.

A flush valve includes a valve housing defining a fluid passageway between a fluid inlet and a fluid outlet. The fluid passageway includes a diaphragm valve seat disposed between the fluid inlet and the fluid outlet. The flush valve additionally includes a diaphragm assembly including a diaphragm and a disc. The diaphragm includes a primary opening and a bypass opening. The primary opening receives the disc therein and the bypass opening allowing water under pressure supplied to the fluid inlet to pass from a fluid inlet side of the diaphragm into a chamber in the fluid passageway. The flush valve additionally includes a relief valve configured to selectively control fluid flow from the chamber to the fluid outlet. The relief valve comprises a stationary valve element and a rotatable valve element each having at least one opening and being rotationally positionable relative to one another to regulate fluid flow.

A magnetically-operable shutter assembly comprises a fixed core and a movable core which can be configured between a contact condition and a condition of the utmost mutual distance and further comprises an encapsulation body capable of simultaneously containing the fixed core and the movable core; the encapsulation body can be installed within a body of a complex functional assembly which is configurable at least in a hindrance configuration for a fluid flow and in an admittance configuration for said fluid flow through the complex functional assembly itself.

A metering valve includes a valve body, a valve element, a rotary servo, and a stepper motor. The valve body has a valve chamber, a fluid inlet port, a fluid outlet port, a metering valve control pressure inlet port, a servo control pressure inlet port, and a servo control pressure outlet port. The valve element is movably disposed within the valve chamber and defines therein at least a control pressure chamber and a return pressure chamber. The valve element is responsive to fluid pressure in the control pressure chamber to move between a closed position and a plurality of open positions. The rotary servo is rotatable about a rotational axis to a plurality of servo positions to thereby vary fluid pressure in the control pressure chamber. The stepper motor is responsive to commands to rotate the rotary servo to a commanded servo position.

A pilot valve is provided, which comprises a valve body having a cylindrical structure, a magnetically permeable sleeve made of permeability magnetic material, and a coil assembly. The magnetically permeable sleeve is sleeved and fixed on one end of the valve body. The coil assembly is sleeved on the magnetically permeable sleeve. The coil assembly comprises an electromagnetic coil wound along the circumference of the magnetically permeable sleeve.

A pilot valve is provided, which comprises a valve body having a cylindrical structure, a magnetically permeable sleeve made of permeability magnetic material, and a coil assembly. The magnetically permeable sleeve is sleeved and fixed on one end of the valve body. The coil assembly is sleeved on the magnetically permeable sleeve. The coil assembly comprises an electromagnetic coil wound along the circumference of the magnetically permeable sleeve.

A positioner drive for controlling a valve positioner with pneumatic output is configured to be mechanically coupled to a valve of the valve positioner with pneumatic output for controlling the valve positioner with pneumatic output.