A sprinkler apparatus, a flow rate control valve assembly, and a sprinkler irrigation system for providing an even distribution of water across an asymmetrically shaped water receiving area. The sprinkler apparatus comprises a pop-up sprinkler head with a base housing for confiningly receiving a pressurized water flow that actuates a nozzle housing slidingly and rotationally cooperating with the base housing to pop-up into an operating position for discharge of water through at least one pair of nozzle assemblies. The pair of nozzle assemblies comprise an upper nozzle assembly and a lower nozzle assembly near the top end of the nozzle housing. The upper nozzle assembly controllably projects the pressurized water flow for a precisely set distance, while the lower nozzle assembly comprises a vertical slit-shaped aperture through which water is discharged in a curtain effect. Together, the pair of nozzle assemblies achieve a substantially uniform elliptical linear spray pattern with a bias to outermost end. A flow rate control valve assembly is further described and comprises a flow control valve assembly that can be fluidly coupled to a pop-up sprinkler head to controllably supply the pressurized water flow, the flow control valve assembly comprising a water inlet fluidly coupled to a water supply and a water outlet fluidly coupled to the pop-up sprinkler head, the water outlet cooperatively engaging with a rotary disc valve having a tapered passage wherein sliding rotation of the rotary disc valve incrementally adjusts the valve between an opened position and a closed position to control the pressurized water flow through the water outlet.

According to some embodiments, an oscillating sprinkler system is provided that includes: a central tubular portion having at least one row of flexible nozzles; a cam plate located inside a peripheral wall of said central tubular member, said cam plate having a plurality of cam slots for adjusting positions of said flexible nozzles upon rotation of said cam plate within said peripheral wall; and said peripheral wall including a window via which an edge of said cam plate is observable during rotation of said cam plate such as to designate an extent of angular displacement of the nozzles based on the positioning of the cam plate within the window.

A base with a supply connection for connecting the base to a water supply. A distributor head is revolvubly mounted to the base for rotating with respect to the base. There are at least two jet arms rotatably combined to the distributor head. Each of the jet arms comprises of at least one jet nozzle in fluid communication with the supply connection for disbursing water from the water supply. The jet arms are each rotatable to change the area of coverage of the sprinkler.

A pressure regulator for controlling flow of a fluid therethrough is provided. An upper housing member and a primary diaphragm define an upper chamber and a lower housing member and the primary diaphragm define a lower chamber. The pressure regulator further includes: a valve assembly provided within the upper chamber for controlling the flow of the fluid from an inlet body into the upper chamber; a secondary diaphragm provided within the lower chamber and defining a secondary diaphragm driving chamber; and a passageway connecting the inlet body and the secondary diaphragm driving chamber. During operation, the secondary diaphragm driving chamber is filled with the fluid at the inlet pressure, thereby subjecting the secondary diaphragm to the inlet pressure and generating the force for actuating the valve's disengagement from the inlet body. The pressure regulator functions to maintain the outlet pressure at a value that is a predetermined fraction of the inlet pressure.

Oscillating rotation sprinkler that allows the start of the sprinkler even when it is mounted on drainpipes with the nozzle facing the terrain. It comprises a nozzle (4) which controls the passage of water and allows for the outlet of the water running through the drainpipes, an inner body (5) on which the nozzle (4) is mounted, a plate holder (1) arranged around the inner body (5) and a deflector plate (2) which is joined to one end of the plate holder (1) by means of support columns (13) and comprising a plurality of channels (7) that receive and direct the water coming out of the nozzle (4). It also comprises a warped ring (8) arranged between the inner body (5) and the plate holder (1).

A spraying device, which includes a spraying mechanism and a rotating mechanism is disclosed. The rotating mechanism includes a rotating sidewall, which sidewall is provided with multiple sets of spraying holes arranged along the circumference of the rotating sidewall. Each set of spraying holes includes a plurality of spraying holes, and the spraying holes of at least two adjacent sets of spraying holes are arranged in a staggered arrangement. The spraying mechanism includes an infusion channel, the sidewall of which is provided with a spraying spout. The infusion channel extends along the inside of the rotating sidewall, the rotating sidewall being configured to rotate or swing with respect to the spraying spout of the infusion channel.

A liquid cannon for use in discharging a liquid. The liquid cannon has an inlet for the liquid and a conduit providing a flowpath for the liquid between the inlet and at least one nozzle. The liquid cannon includes a head assembly having a turret supporting the at least one nozzle. The conduit passes through a bearing rotationally supporting the turret relative to a mount.

Irrigation nozzles are provided that irrigate a full circle coverage area with different maximum throw radiuses. The nozzle may include two bodies, one nested within the other, that acting together form the full circle coverage area. The two bodies collectively define an annular exit orifice with one of the bodies defining the inner radius and the other body defining the outer radius. A flow restrictable inlet may be used to adjust flow through the nozzle and to adjust the maximum throw radius. The nozzle may also include a flow reduction valve to reduce the throw radius from a maximum distance and may be adjusted by actuation of an outer wall of the nozzle. A deflector for use with an irrigation nozzle is also provided.

A rotatable sprinkler including a water outlet nozzle providing a pressurized axial stream of water along a nozzle axis, and a rotatable water deflector assembly, downstream of the water outlet nozzle and receiving the pressurized axial stream of water therefrom, the rotatable water deflector assembly being rotated during sprinkler operation by the pressurized axial stream of water about a rotatable water path deflector assembly axis, the rotatable water deflector assembly including a first rotatable water path deflector portion and a second rotatable water path deflector portion, which is user rotatable relative to the first rotatable water path deflector portion about a second rotatable water path deflector axis, thereby enabling user selection of at least one water distribution parameter.

A rotary sprinkler comprises a nozzle head and at least 8 nozzles supported by the nozzle head. The nozzles are configured to discharge water streams at substantially the same velocity, but to different radial distances from the nozzle head. Each water stream produces a spray pattern that overlaps at least one adjoining spray pattern.