Fluid flow control devices comprise a body including a central aperture extending along a longitudinal axis therethrough and a plurality of channels extending from an outer sidewall of the body to an inner sidewall of the body. At least one first channel may intersect at least one other channel. Fluid flow control systems, methods of forming fluid flow control devices, and methods of flowing a fluid through a fluid flow control device are also disclosed.

Fluid flow control devices comprise a body including a central aperture extending along a longitudinal axis therethrough and a plurality of channels extending from an outer sidewall of the body to an inner sidewall of the body. At least one first channel may intersect at least one other channel. Fluid flow control systems, methods of forming fluid flow control devices, and methods of flowing a fluid through a fluid flow control device are also disclosed.

A valve seat apparatus for use with fluid valves is described. An example disclosed valve seat apparatus includes a seat ring having an outer surface that includes a first annular recess at a first end of the seat ring, where the first annular recess is to receive a portion of a cage, a second annular recess proximate a second end of the seat ring opposite the first end, and where the second annular recess defines a groove in the outer surface of the seat ring, and a third annular recess adjacent the second annular recess. The example disclosed valve seat apparatus also includes a first seal assembly disposed in the third annular recess and a retainer disposed in the second annular recess to retain the seal assembly in the third annular recess.

A manual valve includes a knob, a stem, a stopper, and a male thread. The stem is extended from the knob. The stopper is extended from the stem. The male thread is extended from the stopper. The stem is smaller than the stopper in outer diameter. The stem is configured to be installed with a clip, which is a separate component from the manual valve. The stopper is configured to make contact with the clip in the axial direction and to be regulated movement in the axial direction when an outer periphery of the stem is installed with the clip and circumferentially surrounded with the clip.

A control or shutoff valve with a housing includes a valve seat arranged within housing between feed and a discharge, and a shutoff element arranged to be moveable relative to the valve seat in the housing. At least one feed channel leading to the valve seat is arranged in the housing to supply a pressure medium to reduce cavitation phenomena.

A valve stem lifter assembly which operates to alternatively open and close a valve, includes a rotatably mounted rotary shaft having a free end axially aligned with a pull shaft and an opposite free end axially aligned with an operator for selectively producing rotational movement of the rotary shaft and corresponding axial movement of the pull shaft. The rotary shaft is rotatably connected to a valve riser element by radius set screws positioned axially in the grooves of the rotary shaft. A plurality of guide shaft rods interconnects the riser to the valve stem lifter assembly to prevent axial separation of the riser and rotary shaft while permitting free relative rotation of the rotary shaft and linear movement of the pull shaft.

A system, in certain embodiments, includes an SMA thermostat. The SMA thermostat includes a body, a sleeve, a biasing spring and an SMA spring. Upon actuation of the SMA spring at a phase transition temperature, the sleeve is configured to shift and expose flow ports formed in the body.

[Object] Object is to provide hydraulic control valve capable of increasing flexibility of layout of ports without requiring high accuracy of dimensions of component.

[Solution] Hydraulic control valve has cylindrical valve body 50 having, at cylindrical shaft portion 50b, retard and advance ports 18a, 19a and reintroduction ports 58; spool valve 51 provided slidably in axial direction in valve body 50 and making switch between supply/discharge of working fluid to/from retard and advance hydraulic chambers 11, 12 through land portions 51a, 51b; cylindrical sleeve 52 formed with synthetic resin material and fixed to outer peripheral surface of cylindrical shaft portion 50b; and actuator 55 moving spool valve 51 in axial direction. Sleeve 52 has, at peripheral wall thereof, retard and advance oil passage holes 64a, 64b communicating with retard and advance ports 18a, 19a, and has, on inner peripheral surface thereof, communication grooves 65 communicating with reintroduction ports 58.

[Object] Object is to provide hydraulic control valve capable of increasing flexibility of layout of ports without requiring high accuracy of dimensions of component.

[Solution] Hydraulic control valve has cylindrical valve body 50 having, at cylindrical shaft portion 50b, retard and advance ports 18a, 19a and reintroduction ports 58; spool valve 51 provided slidably in axial direction in valve body 50 and making switch between supply/discharge of working fluid to/from retard and advance hydraulic chambers 11, 12 through land portions 51a, 51b; cylindrical sleeve 52 formed with synthetic resin material and fixed to outer peripheral surface of cylindrical shaft portion 50b; and actuator 55 moving spool valve 51 in axial direction. Sleeve 52 has, at peripheral wall thereof, retard and advance oil passage holes 64a, 64b communicating with retard and advance ports 18a, 19a, and has, on inner peripheral surface thereof, communication grooves 65 communicating with reintroduction ports 58.

A side-opening sleeve valve having an inner cylindrical barrel with a shaped opening through the wall, an outer cylindrical barrel having shaped opening through the wall, where the barrels are co-annular and rotatable, and a means for rotating the inner barrel relative to the outer barrel between a first open position where the shaped openings overlap to form a side opening into the sleeve valve, and a second closed position where the shaped openings do not overlap. A side-opening valve is used in pigging fluid flush system for a water-less toilet, where a toilet bowl empties into the side opening of the side-opening valve when opened. When the side-opening valve is closed, a pig cleaning system pushes the waste in the side-opening valve to a sewage system.