Abstract: A compressed air production facility that reduces an extension cost without stopping an operating air compressor in a case of increasing the number of air compressors to cope with an increase in demands for compressed air is provided. A compressed air system supplies compressed air to compressed air consuming devices connected to a compressed air distributions line, the compressed air system including a plurality of air compressor units connected to the compressed air distributions line via respective air tanks. Each of the air compressor units includes: an air compressor main body; an adjustor of pressure setpoint that adjusts a pressure setpoint of an air tank to which the air compressor unit including the adjustor of pressure setpoint is connected; and a controller of air compressor that operates a rotational frequency of the air compressor main body on the basis of the pressure setpoint adjusted by the adjustor of pressure setpoint and a pressure of the air tank.

Abstract: A method for pressure pipe drilling a pipe comprising an exterior layer and an interior layer, the method comprising internally lining the pipe with a fluid-tight sheath; drilling a first cavity through the exterior layer until exposing the interior layer; injecting a sealant into the first cavity; and drilling a second cavity within the first cavity through the interior layer and the fluid-tight sheath.

Abstract: A liquid storage tank includes a housing, a piston located in the housing, a cover, an elastic element, and an outlet pipe. The cover is attached to the housing and has a support post extending toward the piston. The piston, the housing, and the cover define a tank chamber. The tank chamber is filled with cooling liquid. The elastic element is connected with the tank hosing and the piston. The elastic element is free from contact with the cooling liquid. The outlet pipe communicates with the tank chamber. An extension direction of an opening of the outlet pipe is not parallel to a direction of movement of the elastic element. When the cooling liquid is decreased, the piston compressed the tank chamber such that the elastic element is released. The tank chamber is continuously compressed by pairing the elastic element and the piston.

Abstract: Valve systems and related methods include at least one component comprising a conductive material and at least one inductance-to-digital converter (LDC) configured to wirelessly sense a position of the portion of the conductive material.

Abstract: A method of using a backflow box with a water-using appliance comprising providing a backflow box including a backflow preventer and drainage; installing the backflow box in a wall cavity of a building in an accessible and viewable location; coupling the backflow preventer of the backflow box to a water supply and the water-using appliance; coupling the drainage of the backflow box to drain line of the building; inhibiting backflow from the water-using appliance from flowing into the water supply backflow preventer; and draining backflow through the drainage of the backflow box to the drain line of the building.

Abstract: An automatic return shower head and a use method thereof are provided. The automatic return shower head comprises a handle, a valve body, a water distribution disc, a switching return assembly and a shower head body configured to be connected with the handle and having a water outlet passage communicating with a water supply passage of the handle. The valve body is provided with water distribution hole(s), fixed to a joint between the shower head body and the handle, and located between the water supply passage and the water outlet passage. The water distribution disc is provided inside the joint and rotates relative to the valve body. The switching return assembly comprises a switching assembly linked with the water distribution disc, a knob provided on a wall surface of the joint and linked with the switching assembly, and a return portion linked with the knob.

Abstract: A valve device includes a body that defines a passage through which a fluid flows, a shaft that is movably supported with respect to the body and defines an axis, a valve element that is fixed to the shaft to open and close the passage; and a cylindrical bearing bush that movably supports the shaft with respect to the body, in which the bearing bush includes a mixed region in which a metal core material and expanded graphite are mixed with each other, and a first expanded graphite region made of only the expanded graphite such that the metal core material is not exposed in an inner circumferential side region in contact with an outer circumferential surface of the shaft.

Abstract: A high-pressure gas tank connection structure including: a tank main body; a tank side connector; a connection side connector; and a valve body, the valve body being provided further toward a deep side along the axial direction of the tank main body than the tank side connector, the valve body being urged toward the connection side connector, and, in a case in which the valve body is pushed by a distal end of the convex portion in a state in which the convex portion is joined with the concave portion, the valve body being opened from a closed state, and communicating the interior of the tank main body with the exterior to the tank main body.

Abstract: A water control system for the cold and hot water plumbing installations, for consumption or heating and gray water in a home, premises or building increases water and/or energy efficiency of the installation by means of a method of operation which reduces the water consumption or energy used in its consumption and treatment. The method includes detecting and controlling water leaks, avoiding consumption of cold water which is produced while waiting for hot water to come out, reducing the energy required for consuming hot water, reducing consumption of water when it is used for the toilet together with a soap, foam or similar, measuring and controlling the proliferation of Legionella bacteria and other microorganisms, cleaning pipes and in general monitoring the control variables of a plumbing installation and its visualization and interaction by a user or a smart and autonomous IT system.

Abstract: A flushing station is provided. The flushing station includes a connection piece for a hot water pipe, a connection piece for a cold water pipe, a collecting tank with a siphon for draining the water, pipes at the connection pieces which conduct the water from the connection pieces into the collecting tank at least one sensor per pipe a control unit connected to the sensor, a valve actuatable in the pipes, wherein the control unit is coupled to the actuatable valve and the actuatable valve can be opened by the control unit for flushing the hot or cold water pipe. According to the invention, a flow restrictor and a flow straightener are integrated in each of the pipes.

Abstract: According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.

Abstract: A cut warning system can include a valve sleeve defining a cavity, the valve sleeve defining a bottom sealing surface within the cavity; a pipeline extending through the cavity; a drilling machine including a shell cutter, the shell cutter defining a bottom edge, the drilling machine configured to axially advance the shell cutter from a pre-engagement position towards the bottom sealing surface, the pipeline positioned between the shell cutter and the bottom sealing surface in the pre-engagement position; and a signaling element positioned within the cavity, the signaling element configured to produce a signal when the shell cutter reaches a post-engagement position, the bottom edge being axially positioned between the pipeline and the bottom sealing surface.

Abstract: A pot filler including a metered dispense input device for dispensing of predetermined volumes of water. The pot filler illustratively includes an electrically operable valve operably coupled to a metered dispense input unit, and a control module configured to control operation of the electrically operable valve.

Abstract: A flow control device has a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet and a unitary trim cartridge assembly secured to the valve body. The trim cartridge assembly has a cage disposed in the flow path, a bonnet coupled to the cage, and a retaining element disposed between the cage and the bonnet. The cage includes an exterior groove formed on an exterior surface of the cage, the bonnet includes an interior groove formed on an interior surface of the bonnet, and the retaining element extends into the interior groove and the exterior groove. A height of the interior groove and/or a height of the exterior groove is greater than a height of the retaining element to allow the cage to move longitudinally within the bonnet with the bonnet and cage assembled.

Abstract: A butterfly valve assembly includes: a butterfly element configured to control fluid flow through a main conduit; and a butterfly controller configured to control the butterfly element. The controller includes a first chamber for receiving fluid at a first pressure, a second chamber for receiving fluid at a second pressure, and an actuator responsive to the first pressure and the second pressure. The assembly also includes a relief valve arranged to regulate the first pressure in the first chamber within a predetermined pressure range, wherein the relief valve comprises an adjustment mechanism for adjusting the predetermined pressure range. The butterfly valve assembly may comprise a manual override operable to lock the butterfly element in a fully open position or a fully closed position.

Abstract: The present invention relates to a coupling assembly for pipe branching and, more specifically, to a coupling assembly for pipe branching, which: can reduce assembly man-hours; has a simplified structure and thus can reduce construction costs; and can effectively prevent leakage of a branch fluid even when the diameter of a branch hole formed through an inflow pipe is increased in order to enable the increase in the internal flow rate of a branch pipe through which a fluid is supplied to a sprinkler.

Abstract: A valve block for an air suspension system for a vehicle, including a pressure supply connection and at least one load connection it is to be achieved that a pre-assembly of an air suspension valve block can be avoided without having to utilize an air dryer on a granulate basis during the filling of the air suspension system. This means that a subsequent filling of a completely assembled air suspension system is possible. This is achieved by a filling connection with integrated filling valve.

Abstract: A flow-path forming block includes: a first block; a second block attached to the first block, the second block having a first flow path and a second flow path; and a gasket provided between the first block and the second block, the gasket being configured to seal between the first block and the second block, wherein the second block has a communication portion formed on a surface facing the gasket, the communication portion being configured such that the first flow path and the second flow path are communicated, and the gasket has a recessed portion formed at a position facing the communication portion.

Abstract: A steam valve having a first inclined surface, which is formed at the distal end portion of a valve rod and in which the outer diameter of the valve rod increases from the distal end toward the base end of the valve rod, and a second inclined surface, which is formed on the inside of a portion of a main valve that is positioned on the base-end side of the valve rod and which inclines with the same inclination angle as the first inclined surface. In a state in which a slave valve and the main valve are closed the first inclined surface and the second inclined surface are separated from each other, and when the slave valve and the main valve are in a fully open state the first inclined surface and the second inclined surface abut each other.

Abstract: A valve assembly includes a valve head. A valve stem extends from the valve head and into a drain bore in a housing. A first guidance retainer ring is mounted around the valve stem at a first axial location on the valve stem. A second guidance retainer ring is mounted around the valve stem at a second axial location on the valve stem spaced apart from the first axial location.