Abstract: A vacuum valve with a housing having a valve seat, a closure member which, in a closed position, is pressed against the valve seat, and a manual actuator, by which the closure member is displaceable in a linear manner and which includes a screw transmission, which is actuatable by a rotational element and has a first driving part connected to the rotational element and a second driving part connected to the closure member. The driving parts have mating external and internal threads. A closing spring acts between the valve housing and the closure member. The first driving part is displaceable relative to the valve housing parallel to the closing direction, and with the closure member in the open position, the closure member is held against displacement in the closing direction by a supporting stop against which a stop face of the rotational element or of the first driving part abuts.

Abstract: Exemplary embodiments are directed to valves, generally including a body assembly and handle assembly. The body assembly generally includes a body and a stem passing through the body. The handle assembly generally includes a handle body and an insert. The insert provides an interface between the stem and the handle body. The insert includes protrusions extending therefrom configured to distribute stress resulting from a moment load applied to the handle assembly through the handle body to reduce failure of the handle body. Methods of positioning a valve are also provided.

Abstract: An operating mechanism for a bottom valve for a cargo tank of a railroad tank car, in which a valve operating lever is normally disconnected from a valve operating shaft and a valve operating shaft assembly includes a weak-link connector to prevent inadvertent opening of the bottom valve in case of derailment of the tank car.

Abstract: The present invention provides a fluid control apparatus which allows installation of a thermal sensor for temperature control by a simple work by an effective utilization of a space in the fluid control apparatus, and a thermal sensor installation structure with respect to the fluid control apparatus. The fluid control apparatus 1 includes a first fluid control instrument 3 and a second fluid control instrument 4 adjacent to each other and the thermal sensor 17 configured to measure a temperature of a fluid flowing in the first fluid control instrument 3. The fluid control apparatus 1 further includes a supporting member 19 configured to support the thermal sensor 17 attached to the second fluid control instrument 4.

Abstract: An apparatus for detecting an error in the measurement of a water level in a washing machine includes a water level sensor measuring a water level in a washing tub; a water supply and drain device supplying water to the washing tub or discharging water from in the washing tub; and a control unit controlling the water supply and drain device to adjust the water level in the washing tub, and detecting a measurement error of the water level sensor based on a water level change measured by the water level sensor while the water level is adjusted.

Abstract: A gas lift valve assembly includes a housing, a check valve, and a fluid flow barrier. The housing defines an inlet port, an outlet port, and a main flow passage providing fluid communication between the inlet port and the outlet port. The main flow passage has an upstream end and a downstream end. The check valve includes a sealing element disposed at the downstream end of the main flow passage, and a valve member configured to sealingly engage the sealing element. The valve member is movable between an open position in which fluid flow is permitted in a downstream direction, and a closed position in which the valve member inhibits fluid flow in an upstream direction. The fluid flow barrier is disposed within the main flow passage, and is configured to direct fluid flow away from the sealing element when the valve member is in the open position.

Abstract: A flow control valve includes a valve inlet configured to receive a fluid, a valve outlet configured to output the fluid, and a valve member assembly for controlling the fluid flow through the flow control valve. The valve member assembly and the valve inlet are configured such that, when in use, fluid flowing through the flow control valve exerts substantially no net force on the valve member assembly.

Abstract: A faucet mounting system includes an upper fixture including an outer wall defining a chamber, and at least one groove formed within an inner surface of the outer wall. A lower mounting shank extends below the upper fixture and includes a skirt, a post extending downwardly from the skirt, and at least one spring clip. The at least one spring clip is recessed within an outer surface of the skirt in a compressed position, and extending outside of the outer surface of the skirt in an extended position.

Abstract: A control valve includes a poppet valve moving in an axial direction relative to a seat hole so as to change a flow-path cross-sectional area of the seat hole and a spring disc biasing the poppet valve in a valve opening direction against the return spring. The spring disc includes: a secondary-pressure receiving surface being a portion moving along with a movement of the poppet valve, the secondary-pressure receiving surface configured to receive secondary pressure introduced to the secondary port; and a pilot-pressure receiving surface configured to receive pilot pressure serving as a reference pressure. The spring disc deforms elastically in accordance with pressure difference between the secondary pressure and the pilot pressure to cause the poppet valve to move in the axial direction.

Abstract: A flexible nozzle head for an inflator includes a head-end housing, having an accommodating space for accommodating a nozzle head component; a pump-end housing, being fixedly connected to one end of a pump body of the inflator; and a hose, having one end airtightly overmolded with the head-end housing as an integer and having an opposite end airtightly connected to the pump-end housing. The head-end housing has a through hole communicated with the accommodating space and an axial channel of the hose. The pump-end housing has an interior thereof communicated with the axial channel of the hose.

Abstract: A fluid regulating unit includes a body, a pressure regulator, and a control valve. The body has an inlet, an outlet configured to output a regulated flow of fluid, and a flow path defined between the inlet and the outlet. The body integrates a pressure regulator and a control valve, each of which is disposed in the flow path. The pressure regulator has a regulator body, a control assembly configured to control a fluid flow through the regulator body, a sensor operatively coupled to the control assembly to control a position of the control element, and a bonnet movably coupled to the regulator body. The regulator body and the bonnet define a reference chamber disposed in the flow path. The reference chamber is configured to apply a reference force to the sensor to control the fluid flow through the regulator body.

Abstract: The present disclosure provides a lightweight two-stage pressure regulator for controlling the flow of gas from a high pressure source. The two stage pressure regulator comprises a gas inlet, a first piston pressure regulator stage, a second piston pressure regulator stage and a gas outlet. The first piston pressure regulator stage and the second piston pressure regulator stage are arranged to be coaxial such that the gas flow path is substantially along the axis of the first and second piston regulator stages.

Abstract: An actuator comprising a drive, at least one rotatable threaded element and at least one output element driven in translation thereby is described, characterized in that the threaded element has at least two regions of differing pitch and a rotational axis of the threaded element is inclined relative to a translational axis of the output element.

Abstract: A pressure governor includes a first valve that determines the introducing pressure and a second valve that determines the releasing pressure. A first valve receiving chamber in which the first valve is received and a second valve receiving chamber in which the second valve is received are formed independently from each other. Thus, there is no need to form the valves coaxially, and each valve can be easily fabricated with high accuracy by simple processing.

Abstract: In a cylindrical valve body 3, a first opening portion M1 for a heater heat exchanger and a second opening portion M2 for an oil cooler are arranged parallel in an axial direction of the valve body 3. A third opening portion M3 for a radiator is arranged in a different circumferential direction position from the first or second opening portion M1 or M2 on an outer peripheral surface of the valve body 3 so that at least a part of the third opening portion M3 overlaps with the first or second opening portion M1 or M2 in the axial direction.

Abstract: A gas flow adjusting device is provided, which includes a tube body, a first horizontal shaft, a second horizontal shaft, two leaf structures, a torsional spring and two linkage assemblies. The first and second horizontal shafts are disposed in an accommodating space of the tube body and spaced apart from each other along an axial direction of the tube body. The leaf structures are pivoted on the first horizontal shaft and have a swinging direction identical to the axial direction. The torsional spring is sleeved around the second horizontal shaft and provides a resilient force along the axial direction. The linkage assemblies are connected to the leaf structures respectively, and each of the linkage assemblies is connected to the second horizontal shaft and the torsional spring. Therefore, when the leaf structures swing to different angles, the twisting amounts of the torsional spring are minimally varied.

Abstract: A normally closed valve for microfluidic components includes a polymer substrate and a polymer membrane film arranged on the polymer substrate. The polymer substrate has a first chamber, a second chamber, and a fluidic barrier element configured to separate the first chamber from the second chamber. The first chamber is fluidically coupled to the second chamber by the polymer membrane film, and, in an initial configuration, a connection of the polymer membrane film to the fluidic barrier element prevents a fluidic communication of the first chamber to the second chamber. The first chamber is at least partially filled with a substance in the initial configuration, and a transfer of the substance from the first chamber into the second chamber takes place by applying a pressure to the substance. The pressure is chosen to be great enough to disconnect the connection of the polymer membrane film to the fluidic barrier element.

Abstract: A coupling part, particularly a coupling cuff, for a quick-release coupling for high-pressure hydraulic lines, has a coupling housing having a through-flow channel and a valve device disposed within the through-flow channel, this device having a tappet-like closing valve for closing off the through-flow channel in the uncoupled state of the coupling part. The coupling housing has a conical valve seat surface, and the closing valve has a longitudinal valve axis as well as a valve head having a conical surface and a valve sealing ring for sealing contact with the valve seat surface. The valve sealing ring has a circular-cylindrical ring circumference surface that projects beyond the conical surface in the radial direction and has a valve seal diameter DVD.

Abstract: A vent valve for a buoyancy control device suitable for divers, where the valve may be opened by any combination of over-pressure, manual pressure relief or a powered means, where a force to a valve plug is applied by means of a spring that is constrained to prevent entirely lateral and angular movement but in which movement of the plug in the axis of the seat is unconstrained.

Abstract: A flow control valve includes a resin housing body, a valve member, a retainer plate, a drive unit, and a protective wall. The resin housing body is substantially cylindrical. The valve member axially moves back and forth in the housing body to regulate a flow rate of a liquid. The retainer plate is fastened to the housing body at a position axially outward from the bearing to retain the bearing in the housing body. The drive unit drives the valve stem at a position outward from the bearing to move the valve member back and forth. The protective wall surrounds an outer circumferential surface of the housing body at a position radially outward from a portion of the housing body that receives the bearing to form an air layer portion between the protective wall and the outer circumferential surface of the housing body.