Abstract: Provided is a flow control valve which improves a mounting efficiency. An MCV8 includes a housing including a valve-element housing portion, a first communicating aperture which introduces cooling water, which is flown out of a first water channel formed in an engine, to a valve-element housing portion, and a second communicating aperture which discharges the cooling water in the valve-element housing portion to a second water channel formed in the engine; a rotor accommodated in the valve-element housing portion and configured to change a flow rate of the cooling water discharged to the second water channel, according to a rotation angle of the rotor; and a drive mechanism configured to control the rotation angle of the rotor. The first and second communicating apertures open in an engine-side mounting surface of the housing.

Abstract: An airflow control valve structure includes a metallic pivot shaft-and a valve body. The valve body includes a connection portion connected to the pivot shaft and a resin valve portion. The pivot shaft includes first and second pivot shaft side press-fit portions. The connection portion includes a first valve side press-fit portion formed integrally with the valve portion and a metallic fitting member including a second valve side press-fit portion. The first valve side press-fit portion is fitted to the first pivot shaft side press-fit portion at an angular position at which a phase of the valve portion is matched with a phase of the pivot shaft. The second valve side press-fit portion is fitted to the second pivot shaft side press-fit portion. The first pivot shaft side press-fit portion is longer than the second valve side press-fit portion.

Abstract: A ball valve includes a valve body, a ball chamber within the valve body and a valve ball within the ball chamber. The ball valve further includes valve seats in contact with the valve ball. Each valve seat includes a front face, a rear face and an outer face. The front face includes two or more low pressure contact rings and two or more high pressure contact rings that provide enhanced sealing against the valve ball under both high and low pressure conditions. The rear and outer face each include independent seal zones.

Abstract: A bonded seat for a butterfly valve can comprise a first axial end and a second axial end distal from the first axial end; a central section between the first axial end and the second axial end, the central section defining a radially inward surface and a radially outward surface, the radially inward surface defining a fluid bore therethrough from the first axial end to the second axial end, the radially outward surface defining a plurality of annular ribs.

Abstract: A valve with an internal member is disclosed which allows exhaled carbon dioxide to escape from a breathing circuit when the circuit gas pressure drops below a threshold pressure. The valve operates by occluding one or more ports under a relatively high pressure and opening the one or more ports under a relatively low pressure. The internal member is attached to the body of the valve at two or more locations on the internal member. The internal member moves in a direction perpendicular to the gas flow through the valve.

Abstract: A fuel system includes a fuel passage for conveying a hydrocarbon fuel. The hydrocarbon fuel is reactive with oxygen to form carbonaceous deposit. A device is disposed in the fuel passage such as to be exposed to the hydrocarbon fuel. The device includes first and second surfaces that are spaced from each other by a clearance gap into which the hydrocarbon fuel can infiltrate. The first and second surfaces are in sliding motion with respect to each other when the device is in operation. A frangible fluoropolymer coating is disposed on at least one of the first or second surfaces along the clearance gap. The coating is subject to the carbonaceous deposit adhering thereon. The coating is configured to allow portions to release by shearing off with the carbonaceous deposit under stress from the sliding motion to uncover a newly exposed face of the coating.

Abstract: A vacuum-based energy-saving large-capacity precision pressure regulation valve includes a base valve seat, a middle valve seat, and a pressure regulation seat. The base valve seat includes a main channel that receives a primary-side pressure and a secondary-side pressure to flow therein and includes a valve port piston arranged in the base valve seat to form a valve port opening. The valve port piston is rotatably coupled to a sealing straight rod that is coupled to a main diaphragm. The main diaphragm is clamped between the middle valve seat and the base valve seat to form a vacuum pressure chamber. A balance diaphragm is clamped between the middle valve seat and the pressure regulation seat. An atmosphere passage is connected to a space below the balance diaphragm. A guide passage and a feedback passage are in communication with the vacuum pressure chamber and the main channel.

Abstract: A water separator with a shower seat includes a valve body, a frictional unit, a shower seat, and a water outflow switching mechanism. The valve body is provided with a plurality of snap-fit joints disposed circumferentially. The frictional unit is mounted on the valve body and an outer wall thereof is provided with a first frictional surface. The shower seat is provided with a connecting chamber having an open end, and a snap-fit surface and a second frictional surface are circumferentially disposed in the connecting chamber, respectively. The water outflow switching mechanism is mounted in the valve body. Hook heads of the snap-fit joints are snapped to the snap-fit surface to prevent the shower seat from getting separated from the valve body. When the shower seat rotates with respect to the valve body, the first frictional surface and the second frictional surface rotate accordingly and interact with each other.

Abstract: A trunnion-type ball valve, a valve seal structure, and a valve packing in which, a seal surface pressure of a tip outer peripheral region is improved. A ball (3) provided inside a body (2) is rotatably provided via upper and lower stems (4 and 5) and is sealed with a ball seat (6). The trunnion-type ball valve has a packing attached between an outer periphery step part provided at a rear part of the ball seat and the body and a pressing mechanism by which the packing is pressed to a ball direction, and is provided with a contact surface to be contacted with a step part surface of the outer periphery step part on a tip outer diameter side of the packing and a space provided between the packing and the step part surface of the outer periphery step part on a tip inner diameter side of the packing.

Abstract: Systems and methods are provided for enhanced valves. One embodiment is a hydraulic valve that includes a housing that defines a first port, a second port, and a third port for a hydraulic fluid, and a sleeve disposed within the housing that defines openings in fluid communication with the second port and the third port. The valve also includes a slide comprising a head and a shaft. The shaft is disposed within the sleeve and the slide is movable in a lengthwise direction from a closed position to an open position. The head includes a circumferential lip that extends perpendicular to the lengthwise direction, and that abuts the sleeve when the slide is in the closed position to prevent flow of the hydraulic fluid from the first port. The shaft provides a flow path between the second port and the third port when the slide is closed.

Abstract: A connector for the reciprocal connection of an end member of a water supply or of a sprayer with a flexible hose includes a tubular main body defining an axis and having a first end portion for coupling with the end member and a second end portion that includes an elongated spigot, on which an end of the flexible hose may be fitted, and further includes an abutment wall, from which the elongated spigot extends. The connector also includes a substantially tubular shaped ring nut placed peripherally to the spigot and reciprocally screwable with the main body, and an annular pressure element interposed coaxially between the ring nut and the spigot.

Abstract: A first projection is formed on the outer periphery of a bulb part, a second projection is formed on the socket rear end of the bulb part, a tapered part is formed with a decreasing diameter from the inner periphery of a heel part to the inner periphery of the second projection, and a third projection is formed on the tapered part. A first dimension B from the first projection to the third projection in an inclination direction opposite to an inclination direction G of the tapered part is smaller than a second dimension C from the first projection to the second projection in a radial direction A.

Abstract: A pressure vessel apparatus according to exemplary aspects includes: a branched tube comprising a tube main body and three branches, wherein a side branch of the branches comprises a flared out portion connected to the tube main body; a liquid inlet opening disposed at a first branch of the branched tube; a liquid outlet opening disposed at a second branch of the branched tube; a gas inlet opening disposed at a third branch of the branched tube, wherein the third branch is the side branch; and a cover plate configured to mount a valve actuating mechanism in the branched tube, the cover plate configured to be joined to the branched tube at the third branch.

Abstract: A plumbing float valve is provided that includes: (i) a flexible stopper; (ii) a float portion; (iii) a gate; (iv) a gate mounting assembly; and (v) a hinge. The flexible stopper is configured to seal a pipe. The float portion is configured to float on water. The gate is configured to couple the rubber stopper on one side and the float portion on another side. The gate mounting assembly includes: (i) a pivot; (ii) a movable arm; and (iii) one or more latches. The movable arm is configured to rotate about the pivot, and the one or more latches are configured to prevent movement of the movable arm about the pivot. The hinge of the plumbing float valve couples the gate to the gate mounting assembly.

Abstract: A compact manifold ball valve having a valve body, valve ball, valve stem and two piece retainer system; the valve body including a valve chamber having first and second ends, and a first flow passage intersecting the valve chamber and valve ball. The valve ball can be trunnion supported and include pair of movable seat assemblies that can be used to seal the valve ball to the valve body. A two piece retainer can be used to hold in place the valve components, the two piece retainer including a first section which moves only linearly along with a second retainer piece that is a threaded ring that rotationally locks in place the first section of the two piece retainer. The two pieces of the retainer can be symmetrically located about the centerline of the flow passage of the valve body.

Abstract: A water level controller for a hydroponic system includes a float shifting upward and downward with the culture solution, a first magnetic attraction element and an inlet valve for feeding in the culture solution. The float includes a seal and a second magnetic attraction element. The seal closes the inlet valve to stop feeding in water when the float ascends to a high water level, and moves way from the inlet valve to start feeding in water at a low water level. The second magnetic attraction element attracts the first magnetic attraction element to keep the seal closing the inlet valve at the high water level and to keep the seal moving away from the inlet valve at the low water level, until the buoyancy of the float is larger than the magnetic attraction between the second and the first magnetic attraction element thereby causing escape from each other.

Abstract: A valve includes a cap, a diaphragm defining a movable portion, a valve housing, and a valve portion. An inlet port through which fluid flows into a valve chamber, an outlet port through which the fluid flows out from the valve chamber, and a placement portion on which a peripheral edge portion of the diaphragm is placed are provided in the valve housing. The diaphragm includes a peripheral edge portion, a center portion, a connecting portion connecting the peripheral edge portion and the center portion, and a pusher. The connecting portion has a wave shape from the peripheral edge portion side toward the center portion side such that the connecting portion first projects to a valve body portion side, and next projects to the cap side.

Abstract: A fill valve with pressure chamber having an open bottom end and a diaphragm at a top end such that falling water level in the toilet tank causes the diaphragm to flex in a first direction, thereby moving a sealing member to an open position, with a venturi in the fill valve keeping the sealing member in the open position until water refilling the tank causes the diaphragm to flex in a second direction, thereby moving the sealing member back to the closed position.

Abstract: A check valve structure includes: a valve casing communicating with each of inflow and outflow paths for a fluid; and a valve element which is disposed in the valve casing and configured of an elastic material. The valve element has a thin portion, and a thick portion protruding from the substantial center of one surface of the thin portion. The valve casing has: a valve element support portion including an annular bottom portion capable of supporting an outer edge of a bottom portion of the thick portion, and a peripheral wall portion continuing to an outer peripheral edge of the annular bottom portion; and a valve seat portion including a valve element contact portion which is in contact with a vicinity of an outer peripheral edge portion on the other surface side of the thin portion, and a valve seat surface which can be in contact with the thin portion.

Abstract: A water hammer-proof air valve that has a valve body and a bonnet, that are fixedly connected, a valve opening is provided on the valve body, and a high-speed intake and exhaust device is provided in an inner cavity of the valve body. A bonnet opening is provided on the bonnet, an output end of the high-speed intake and exhaust device penetrates the bonnet opening and is communicated with a high-speed exhaust throttling device for limiting an exhaust amount of gas of the high-speed intake and exhaust device, an output end of the high-speed exhaust throttling device is communicated with an outside air, and a trace exhaust device for discharging the gas separated out from the pipeline to the outside through the high-speed exhaust throttling device after the high-speed intake and exhaust device closes the valve is further provided in the high-speed intake and exhaust device.