Abstract: An aerator (1) having a housing (2) and a jet-splitting device (3) arranged or formed in the housing (2) for splitting an individual jet into a plurality of separate liquid components. The aerator (1) has at least two flow channels (4), which are oriented obliquely in such a way that the outlet directions (12) defined by the flow channels (4) meet each other. An insert part (5) is inserted into a hole (6) in the main body (28) of the jet-splitting device (3), which hole is oriented in particular in the longitudinal direction of the housing (2), such that the hole (6) is divided into the at least two obliquely extending flow channels.

Abstract: One variation of a system includes: a mount defining an inlet configured to couple to a water supply; a body defining a fluid circuit and coupled to the mount; and a pressure regulator interposed between the inlet and the fluid circuit and configured to regulate water supplied at the inlet over a range of inlet pressures to a range of internal pressures less than and narrower than the range of inlet pressures. A set of nozzles arranged on the body and coupled to the fluid circuit are configured to, in response to the pressure regulator regulating a first inlet pressure down to a first internal pressure, discharge water droplets: exiting the body with kinetic energies in a range of kinetic energies; exiting the body in a first spray pattern defining a first width at a target distance below the body, and exhibiting a first volumetric ratio of water to air.

Abstract: A wall faucet is disclosed which has an elongated section of a PEX tube inserted into the water inlet pipe of the wall faucet. The PEX tube is capable of expanding should there be water in the water inlet pipe during freezing temperatures thereby preventing the water inlet pipe from bursting.

Abstract: A de-jamming device has a tubular housing that defines a lumen having a lumen axis, a proximal end, and a distal end. The proximal end has a threaded valve attachment structure for threadedly attaching the de-jamming device to the check valve. A portal extends through the tubular housing in communication with the lumen, and a push rod is positioned through the portal and into the lumen such that the push rod can be pushed into the valve conduit for pushing open the sealing element of the check valve.

Abstract: An irrigation sprinkler is provided having a nozzle and a flow control device for reducing fluid flow through the sprinkler when the nozzle is removed, such as might occur due to vandalism. The flow control device is coupled to the nozzle and is moveable between a first irrigating position and a second signaling position. In the first position, the sprinkler discharges fluid for irrigation. In the second position, the sprinkler discharges a reduced amount of fluid and signals that the nozzle has been removed and should be replaced. The flow control device also allows sufficient fluid flow for flushing debris out of the sprinkler when a flush cap is mounted to the sprinkler, instead of the nozzle.

Abstract: A leak stopping sprinkler head includes a hollow body that has an upper portion and a lower portion fluidly connected to a valve body. The upper portion has a spraying nozzle and a first internal diameter. The lower portion has a second, larger internal diameter. The valve body includes a valve seat fluidly connected to the lower portion and a water supply. A hollow spheroid is larger than the first diameter, smaller than the second diameter and has perforations for passage of water. A rigid rod connects the spheroid and a sealing disk for the valve seat. The rod is sized to hold the disk away from the valve seat when the hollow body is intact. Destruction of the hollow body permits the spheroid to move out of the hollow body, pulling the rod and the disk upwardly, causing the disk to seal the valve, stopping the flow of water.

Abstract: A valve chamber is defined in a valve body of the regulating check valve. A first communicating hole and a second communicating hole communicate the valve chamber with a first flow passage and with a the second flow passage, respectively. A valve element is slidably installed in the valve chamber to seat on or lift away from a valve seat to close or open the first communicating hole. A pressure in the first flow passage urges the valve element away from the valve seat, and a pressure in the second flow passage urges the valve element toward the valve seat. The spring is interposed between the valve element and the valve body to urge the valve element away from the valve seat.

Abstract: A flow control device can be implemented to include an riser, a control valve, a simplified retaining rod, and a ball. The riser can include multiple threaded segments, one or more predetermined breakaway points, and a predetermined length and diameter. The control valve can include a first threaded valve end for detachably connecting to the riser, a second threaded valve end for detachably connecting to a supply line, and a ball housing integrally connected to the first and second valve ends. The ball housing has a predetermined internal housing diameter. The ball is enveloped inside the ball housing, and the ball diameter is smaller than the internal housing diameter and larger than a first opening between the first valve end and the ball housing and a second opening between the second valve end and the ball housing. The retaining rod physically prevents the ball from obstructing the first opening.

Abstract: A safety valve for a lawn sprinkler system having at least one subterranean flow line and at least one head for spraying irrigation water. The valve includes a tubular member connected between the flow line and the head. The tubular member has an axial passage therethrough for the flow of water from the flow line to the head. A seat is located within the passage. A ball is located in the passage upstream of the seat. The ball is axially movable from an open position upstream of the seat to a closed position in engagement with the seat if the water flowing through passage reaches a selected flow rate. A coiled spring in the passage is in engagement with the ball for urging the ball toward the open position.

Abstract: In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of the control piston is sealingly guided, while its second end lies with a sealing ring before a chamber fed with parting agent. In the case of the application of control air the sealing ring is shifted out of its cylindrical section 26 into the chamber, so that the feed of parting agent to the spray nozzle is released. If the control air is shut off, then the sealing ring closes the delivery of the parting agent, and the second, larger end of the control piston exercises upon its return movement a reverse suction effect on the connecting passage. Any after-dripping of parting agent is securely prevented.

Abstract: A sprinkler nozzle structure comprises a grip, a barrel, a spray nozzle, a trigger device, and a flow control device. The trigger device is fastened with the grip for clogging and unclogging a water channel of the grip. The flow control device is fastened between the grip and the barrel for regulating the flow of water moving from the water channel of the grip into a water channel of the barrel.

Abstract: A guided ball check valve in which the ball is guided to prevent radial wander. The guided ball valve comprises a valve housing having a cylindrical bore. A conical valve seat is provided at a first end of the cylindrical bore. Axial grooves are formed into the cylindrical wall of the bore to provide means for the passage of fluid through the check valve when open. A spherical ball slides in the cylindrical bore between a closed position in which the spherical ball is seated against the conical valve seat and an open position in which a gap is formed between the spherical ball and the conical valve seat. The spherical ball has diameter substantially equivalent to that of the cylindrical bore such that the cylindrical wall of the bore engages and guides the spherical ball as the spherical ball linearly translates between open and closed positions.

Abstract: A device for controlling liquid flow in a conduit which is of a hat-like configuration defined by a cylindrical base part having a flange part at one end and a closure part at another end joined thereto by an integral spring which bends to permit through-flow of liquid through a peripheral gap between the body part and the closure part. The gap is of a stepwise progression including either an abrupt or curved step. The gap has a medial gap portion and opposite gap portion ends which are relatively sized to effect the stepwise progression.

Abstract: A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system, the valve includes a T-fitting. The fitting defines a primary passage, which communicates with irrigation pipes, and a branch passage, which communicates with a riser and sprinkler assembly. A valve seat is located within a housing that couples with the fitting. The valve seat is located within the T-fitting when the valve is assembled. The location of the valve seat within the fitting allows the valve to function even when the riser and/or a portion of the housing is sheared off. A stopper selectively engages a valve seat to inhibit water flow through the branch passage when the flow rate through the branch passage exceeds the predetermined flow rate.

Abstract: A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system, the valve includes a T-fitting. The fitting defines a primary passage, which communicates with irrigation pipes, and a branch passage, which communicates with a riser and sprinkler assembly. A valve seat is located within a housing that couples with the fitting. The valve seat is located within the T-fitting when the valve is assembled. The location of the valve seat within the fitting allows the valve to function even when the riser and/or a portion of the housing is sheared off. A stopper selectively engages a valve seat to inhibit water flow through the branch passage when the flow rate through the branch passage exceeds the predetermined flow rate.

Abstract: A valve control unit for a fuel injection valve, has a housing body, in which two valve control chambers that communicate continuously with one another are provided. The first valve control chamber communicates fuel with an inflow conduit for fuel pressure on a terminal member of a valve control piston which is displaceable in the housing body and the second valve control chamber communicates with a closable outlet conduit. A mechanical stop for limiting the mobility of the valve control piston in the direction of the second valve control chamber is embodied on the housing body. The quantity of preinjected fuel can be minimized by the volume of fuel in the first valve control chamber.

Abstract: A pop-up sprinkler head is provided with a mechanism that shuts off the water when the nozzle portion of the riser is removed for maintenance. A stopper element reciprocally mounted in the riser moves to a shut off position when the nozzle is removed. A valve seat member and a stopper element may be provided to retrofit the riser of an existing sprinkler head.

Abstract: A valved nozzle for spraying fuel oil and method therefor includes an inlet, a discharge chamber downstream of the inlet, and a flow restricting orifice downstream of the discharge chamber. The pressure in both the inlet and the discharge chamber urges the valved spray nozzle to open. The valved spray nozzle abruptly opens by the inlet pressure rising above a predetermined upper pressure limit and abruptly closes upon falling to a lower limit. The span between the upper and lower limits defines a very definite deadband across which leakage is avoided at intermediate pressures.

Abstract: A multi-function valve for installation in a riser of a sprinkler system provides two valve functions. One function is to stop flow automatically when breakage of a sprinkler head causes the flow rate to exceed a predetermined threshold. The second function is to prevent back flow and reduce the risk of the "hammer effect" causing damage to the sprinkler system.

Abstract: A fast-actuating on-off valve and pressure regulator particularly well-suited for use with high-pressure incompressible fluids. An actuator, manually-operated or powered, provides a linear push-pull force to a valve stem assembly mounted inside a valve cavity having a fluid inlet and one or more fluid outlets which are arranged axially and concentric with respect to the valve stem. The valve stem assembly includes a valve stem that has a shoulder at one end, with or without an extension. One or more stem springs are positioned concentrically with respect to the valve stem and are capable of sliding along the valve stem and the extension of the valve stem. The valve stem assembly includes one or more stem collars each having a capped end with a central hole to engage the valve stem, a cylindrical cavity to house the stem shoulder, and a threaded portion engageable with a valve poppet.

Abstract: A T-shaped housing has a first channel defined by the housing which when coupled to a fluid distribution conduit forms a segment of the conduit. The housing has a second channel defined by the housing normal to the first channel and in fluid communication therewith. The interface between the first and second channels forms a mouth through which fluid passes from the first channel into the second channel. A sphere is disposed in a chamber beneath the second channel and is confined by fins to movement across the first channel generally toward and away from the mouth of the second channel. The sphere closes the mouth when seated against it. An outlet of the second channel is coupled to a riser. The rate of fluid flow from the first channel through the riser is restricted, for example, by a sprinkler head.

Abstract: A regulator is housed in the expulsion channel of an aerosol container inside which there is a product that is to be dispensed, this product being subject to an expulsion pressure originating from a compressed gas, the said regulator comprising a flexible disk (6) and a rigid disk (7), the latter presenting a protrusion (8) with grooves (9), and further comprising a sealing disk (12) with a central bore (13), and further comprising a nozzle (16). With the flexible disk (6), the grooves (9) in the rigid disk (7) form ducts for the expulsion of the product, and are oriented so as to form tangents to the circumference of the axial duct (10) of the rigid disk (7). This arrangement of the component parts creates turbulence effects in the flow of expelled product, and these effects are utilized to regulate the flow rate at which the product is expelled.

Abstract: A flow control valve for use in dispensing fuel or other fluid and which can be facilely installed in the inlet end of an automatic fuel dispensing nozzle. This flow control valve does not incorporate a valve seat, for its piston like valve, and pressure compensation is controlled by the valve and includes a sleeve incorporating a slidable piston therein, a fluid outlet port is provided at one end of the sleeve, and which is capable of being partially closed by the slide of the piston therein, under fluid pressure conditions, to thereby create a pressure drop that eventually forces the piston into the sleeve and to close off the sleeve port openings in order to reduce fluid flow, during a dispensing function.

Abstract: In a rotary irrigation mini-sprinkler of the kind comprising a housing having a housing inlet and a housing outlet and, intermediate thereof, a differential pressure control means responsive to variations in the pressure differential between the inlet and outlet and including a throughflow path serving to communicate with said housing inlet and outlet, the throughflow dimensions of the path varying in accordance with the differential, the improvement wherein the housing outlet includes an outflow port in direct communication with the path and having a non-circular cross-sectional shape such as to reduce substantially the velocity of water entering the port from the path and thereby ensuring that the water fully occupies the port.

Abstract: An emitter for receiving water from a trickle irrigation system and emitting the received water at a trickle flow rate to an area to be irrigated. The emitter includes a float controlled water inlet shutoff valve for receiving water from the trickle irrigation system and supplying it to a housing to establish a water supply therein and maintain the water supply at a predetermined substantially constant level above at least one water outlet opening of predetermined size formed in the housing to provide a pressure head which interacts with the size of the water outlet opening to determine the trickle output flow rate of the emitter.

Abstract: Disclosed herein is an automatic shut off valve for a sprinkler system which closes the water flow path whenever a sprinkler head becomes dislodged from a riser pipe. The shut off valve includes a valve seat and a valve element. The valve element is attached to the stem of a valve assembly, which further includes a flange positioned in the water flow path. The valve element assembly is held away from the valve seat by a coil spring into which the stem of the valve assembly extends. The stem further includes a plurality of openings to allow water flow into the center of the flange and out through openings in the stem and thereafter through the center of the valve seat. The spring is calibrated in length and compression such that, during normal water flow with a head attached, the spring is not sufficiently compressed to allow the valve element to contact the valve seat.

Abstract: A regulator having turbulence generating device for controlling thrust. A differential piston (2) is biased by a spring (3) located in a discharge channel (8a) of a medium under pressure. The spring (3) is weighted in such a way that it is compressed at a given pressure within the container so that the differential piston (2) takes a first end position and decreases the opening of the discharge channel (8a) to a minimum. The spring (3) expands proportionally to the pressure drop due to the discharge of the medium (18) from the container and shifts the piston (2) so that the opening of the discharge channel (8a) increases gradually until the piston (2) has reached a second end position as soon as a given minimum pressure has been reached in the container.

Abstract: An automatic valve is disclosed for controlling the direction of fluid flow. The valve is particularly suited for use with automatic pool cleaning systems to alternately direct fluid flow to the filtration system of an automatic pool cleaner. The valve includes a primary conduit and a branch segment to define an alternate path for fluid flow. A reciprocating piston is mounted within the branch segment. Indexing is provided by a first cammed surface, formed at one end of the piston which includes a plurality of slots. The slots are selectively engaged with a stop pin. The condition of the valve is determined by the length of the particular slot engaged with the stop pin. A spring is provided for biasing the piston out of engagement with the stop pin when the fluid flow is interrupted. In one embodiment of the subject valve, the volume and pressure of the fluid flow are automatically controlled.

Abstract: An ablution faucet includes a wall-mounted control valve and a flexible conduit having a hand-held control unit at the end thereof. The hand-held control unit includes a body portion from which a nozzle projects, and a lever for controlling the flow of water through the nozzle. The body portion includes a piston which is always urged into engagement with a valve seat by water pressure and a piston-actuating member engageable by the lever. Various alternative embodiments of the piston and piston-actuating member are disclosed. The wall-mounted control valve also includes a piston which is biased to a valve-closed position by water pressure, as well as a vacuum breaker. An alternative embodiment of the invention employs a cable disposed within the hose and connected in valve-actuating relationship between the lever and the wall-mounted control valve.

Abstract: There is provided a self-regulating sprinkling nozzle attachable to a liquid-carrying line. The nozzle comprises a housing, a vortex chamber inside the housing, a vortex-producing inlet means through which the liquid enters the vortex chamber. One wall of the chamber is constituted by a first surface of a stretchable diaphragm and the opposite wall of the chamber is provided with an aperture leading to the atmosphere. The second surface of the diaphragm is exposed to line pressure. The nozzle also comprises rotor disposed in a drive space and means entrained and set spinning by the vortex. A shaft portion of the rotor means passes through the aperture, and a liquid-throwing member is fixedly attached to, and spun by, the shaft portion as a result of the action of the vortex on the rotor means.

Abstract: A fluid nozzle designed to shut off when the pressure of the fluid exiting the nozzle reaches a predetermined value, e.g., 30 psi, as set forth in OSHA regulations. The nozzle has a body having an inlet, an outlet, a passage therebetween, and a conventional valve for manually opening and closing the passage between the inlet and outlet. An apertured closure is inserted in the outlet and has a valve seat on its inner surface. A valve having a face on its one end and a passageway through the valve is positioned in the passage to slideably move between the valve seat of the apertured closure and a valve stop. A vent hole through the wall of the body is located between the conventional opening and closing valve and the valve stop.

Abstract: A flow control device that maintains a constant flow rate and is arranged to produce a regulated, aerated stream on the discharge side.