Abstract: A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits that each comprise a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.

Abstract: A dehumidifier includes a water tank, a body configured to be located over the water tank when the body is in a working state, and a drain pump provided at the body. A housing of the body is provided with a drain position. A water outlet end of the drain pump is connected to the drain position. A water inlet end of the drain pump is connected to the water tank. The water inlet end is provided with a filter.

Abstract: Improved sub-assemblies and methods of control for use in a diagnostic assay system adapted to receive an assay cartridge are provided herein. Such sub-assemblies include: a brushless DC motor, a door opening/closing mechanism and cartridge loading mechanism, a syringe and valve drive mechanism assembly, a sonication horn, a thermal control device and optical detection/excitation device. Such systems can further include a communications unit configured to wirelessly communicate with a mobile device of a user so as to receive a user input relating to functionality of the system with respect to an assay cartridge received therein and relaying a diagnostic result relating to the assay cartridge to the mobile device.

Abstract: Disclosed is a method for controlling a control valve (110), wherein the control valve (110) is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (108). The method comprising: reviewing (S402) a demand signal for the control valve (110); checking (S404) if the demand signal is indicative of setting the control valve (110) in a hysteresis interval for the control valve (110); and upon the demand signal is indicative of setting the control valve (110) in the hysteresis interval, alternatingly (S406) setting the control valve (110) in an open state above the hysteresis interval and setting the control valve (110) in a closed state.

Abstract: A pressure relief assembly includes a plurality of valve components and a cap configured to house the valve components. The cap includes a ring having a retaining portion. The pressure relief assembly includes a sensor apparatus coupled to the cap via the ring. The sensor apparatus is configured to sense whether a predetermined pressure threshold is reached. The valve components operate to relieve pressure when the predetermined pressure threshold is reached. The sensor apparatus includes a retaining portion engaging the retaining portion of the ring. A valve assembly includes a first valve apparatus and the pressure relief assembly configured to bypass the first valve apparatus. The valve assembly includes a main housing that surrounds the first valve apparatus and the pressure relief assembly. The main housing defines an aperture in which the cap of the pressure relief assembly is at least partially disposed in the aperture.

Abstract: There are provided a steam valve and the like capable of preventing breakage of an auxiliary valve element and effectively suppressing the occurrence of a leak of steam in the auxiliary valve element. In the steam valve of an embodiment, the auxiliary valve element is structured to be in an open state in which the valve rod moves in an opening direction to increase a distance between an auxiliary-valve cap and a main valve element, thereby opening an auxiliary-valve steam introduction hole, and to be in a fully-closed state in which the valve rod moves in a closing direction in which the main valve element is closed to bring the auxiliary-valve cap and the main valve element into contact with each other, thereby closing the auxiliary-valve steam introduction holes.

Abstract: An aircraft exterior light unit may comprise a magnetically controlled fluid drain valve configured to expel liquid water from the light unit. The valve may include a permanent magnet configured to induce a magnetic flux circuit that generates a magnetic force configured to close the valve. The valve may be configured to open when the pressure inside the light unit exceeds the magnetic force. As the valve opens and expels the water, the pressure within the light unit may decrease, equalizing with that of the external environment. As the magnetic force generated by the magnet increases as the valve is open and the water expelled, the magnet may be configured to close the valve once more. As such, the magnet may be configured to control a self-acting fluid drain valve in an aircraft exterior light.

Abstract: A flow tube including: a pin; a seat; and a guide tube, the pin and the seat are arranged at least partially in the guide tube; and wherein: the flow tube is arranged to have a closed position, wherein: the pin is in contact with the seat and fluid flow through the seat is reduced or prevented; the flow tube is arranged to have an open position, wherein: the pin is not in contact with the seat and fluid flow is increased through the seat when compared to the closed position; and the flow tube is arranged to have a forced open position, wherein: the seat is arranged such that when a force above a threshold force is applied to the seat: the seat moves away from the pin, the pin is not in contact with the seat, and the flow tube cannot move to the closed position again.

Abstract: A fuel-tank control valve includes: casing; main float; plate with upper surface that constitutes bottom portion of casing, and that includes first gas-storage chamber formed of plate and peripheral wall portion that is provided upright from rim of upper surface to lower side; sub float arranged above the plate; second gas-storage chamber formed of a part including gas supply hole of first gas-storage chamber among parts of upper surface, and partition-wall portion which is away from peripheral wall portion, and that is provided in first gas-storage chamber; and clearance which is formed between casing and peripheral wall portion, and through which fuel in fuel tank can flow in, second gas-storage chamber and clearance being provided for sub float. Upper surface includes protruding seating portion that forms inflow space through which gas through gas supply hole can flow in under state in which sub float is seated on protruding seating portion.

Abstract: A connection body (1) for a flush-mounted installation body (2), comprising: a) a base body (3), which is at least partially made of plastic, and b) at least one connection (4) for a fluid line, wherein the at least one connection (4) is at least partially made of metal and is at least partially cast into the base body (3); a flush-mounted installation body (2) comprising the connection body (1); and a method for manufacturing the connection body (1).

Abstract: A check valve and an air conditioner having the same are provided. The check valve includes a valve body, a valve cover and a valve core. The valve body is provided with a valve cavity and a valve port. The valve core is located in the valve cavity and configured to open or close the valve port. The valve cover is covered on the valve body and configured for limiting the valve core from separating from the valve cavity along an axis of the valve body. The valve cover is provided with a stop rod, or an end of the valve body adjacent to the valve cover is provided with a stop rod. The valve core is provided with a limiting portion, and the limiting portion is configured for matching with the stop rod to circumferentially limit the valve core.

Abstract: An equalization shutoff valve includes a housing having an outward extending flange around an open end of the housing, retaining clips attached to the flange configured to engage a battery pack compartment, and piston guides disposed inside the housing; a piston having guide notches engaging the piston guides, and a first flow port; a spring disposed between the housing and the piston to urge the piston in a direction away from a closed end of the housing; and a locking tab cover attached to the housing with the piston inside the housing, and having a second flow port and locking tabs with clip ports. The housing is attached to the battery pack compartment through the retaining clips so that air flows from inside the battery pack compartment, and when pressure inside the housing increases, increased pressure pushes the spring and the piston to allow air to exit from the housing.

Abstract: A valve device includes a housing and a cylindrical valve body. The housing defines: an inflow port; a first outflow port and a second outflow port which are opened apart in a circumferential direction and respectively have first and second opening widths; and an accommodation chamber. The valve body is arranged in the accommodation chamber to open and close the first and second outflow ports and includes: an internal passage; a first outflow communication port which expands in one direction in the circumferential direction continuously with a region facing the first outflow port, and has an opening width larger than the first opening width; and a second outflow communication port which expands in the other direction in the circumferential direction continuously with a region facing the second outflow port, and has an opening width larger than the second opening width.

Abstract: An actuating drive (2) including a ball screw drive (3) for activating a self-closing, linearly activated fitting (4) and a method of use are provided. While the opening of the fitting (4) with the actuating drive (2) takes place by an electric motor by the ball screw drive (3), a restoring movement is transmitted to the spindle (6) when closing the automatically closing fitting (4). The restoring movement, and thus also a closing movement of the fitting (4), can be at least indirectly decelerated by way of the ball screw drive (3), this being able to protect the fitting (4) and ultimately also the ball screw drive (3) and optionally further components connected to the fitting (4) and/or the ball screw drive (3) from damage, and facilitating a fail-safe function.

Abstract: A reservoir cup assembly of an LPG fuel tank for a vehicle is configured to be installed on the fuel storage space side of the LPG fuel tank for automobiles, and includes a cup body disposed on the bottom side of the fuel storage space of the fuel tank and having a reservoir space for storing residual LPG fuel and a fuel supply formed on the reservoir space side of the cup body and inducing fuel from the fuel storage space side to the reservoir space side to a state in which fuel can flow in and remain stored.

Abstract: An electromagnetic valve unit held so as to be sandwiched between a receiving portion of a housing portion of control equipment and a pressing member includes a shoulder portion to be opposed to the receiving portion of the housing portion and an annular elastic member provided with a protruded portion to be inserted into a recessed portion formed at the shoulder portion. The annular elastic member is further provided with an annular deformation portion that is deformable in the axial direction so as not to press the protruded portion in the axial direction.

Abstract: A high purity control valve for use in high conductance, proportional control applications includes a moveable control plate having a flow-through passage to enhance fluid sweep of the internal valve volume. Nested orifice ridges are used to achieve high conductance with small actuator movement. Enhanced leak tightness can be provided by incorporating into the control plate materials softer than the material comprising the orifice ridge. The control plate comprises a control plate body having a counterbore in fluid communication with a conduit, radial fluid flow paths and axial fluid flow paths. A flat side of the control plate includes a continuous uninterrupted flat portion to shut-off fluid flow in the valve. The radial fluid flow paths provide fluid communication from the counterbore to a circumferential perimeter of the control plate and the axial fluid flow paths provide fluid communication with the fluid conduit through an intermediate valve chamber portion.

Abstract: A buffer for storing liquid at a consumer pressure includes a storage volume for holding a liquid and a gas. The storage volume may be separated by a partition element into a liquid compartment for holding the liquid and a gas compartment for holding the gas. A pressurizer is configured for increasing the pressure of gas in the storage volume to an operating pressure when liquid is or has been drained from the storage volume. A ventilator reduces the pressure of gas in the storage volume back to the operating pressure when the storage volume is filled with liquid. A water supply system for an aircraft including the buffer and an aircraft including such a water supply system are disclosed.

Abstract: Systems and methods described herein provide for pressure relief valve detection and monitoring. A valve assembly includes a valve body, having an inlet and an outlet, and a valve seat insert attached to the valve body between the inlet and the outlet. The valve body also includes an indicator assembly, a disk positioned within the valve seat insert; and a stem extending between the disk and the indicator assembly. The stem includes a magnet. A magnetic sensor is operable to identify proximity of the magnet. The valve seat insert is operable to release the disk when pressure at the inlet exceeds a threshold value. The disk, when released, moves the stem and magnet into a position that is detected by the magnetic sensor, and the indicator assembly indicates a valve opening event when the position is detected.

Abstract: A control valve includes a valve body and a flow control device having a wall extending around a central axis. A plurality of flow control channels are formed in the wall, with each flow control channel extending in a first direction substantially parallel to the central axis and a second direction substantially perpendicular to the central axis toward an inner surface and terminating between an outer surface and the inner surface at an inner channel surface. A valve plug is moveable relative to the flow control device in a direction substantially parallel to the central axis between a closed position and an open position. In the closed position, the valve plug covers the plurality of flow control channels, and as the valve plug transitions from the closed position toward the open position, the plurality of flow control channels become exposed to receive fluid flow.