A sprinkler includes a pop-up deflector plate that is engageable with a brake assembly in an extended position. A brake module is secured to a sprinkler body and includes a rotatable connector coupled with the brake assembly. The pop-up deflector plate is disposed adjacent the nozzle and engages the rotatable connector in the extended position.

A self-rotating device for cleaning with ultra-high water pressure having a base supported by front and rear wheels with a handle extending therefrom. A spray bar assembly with a plurality of nozzles constructed and arranged to cause rotation of the spray bar through fluid discharge is mounted beneath the base. A hydraulic pump is positioned with spray bar and coupled to a reservoir mounted on the handle. The hydraulic pump is rotated by the spray bar assembly, causing hydraulic fluid to recirculate through the reservoir, wherein an adjustable flow valve permits control of the spray bar assembly rotation speed.

A sprinkler includes a pop-up deflector plate that is engageable with a brake assembly in an extended position. A brake module is secured to a sprinkler body and includes a rotatable connector coupled with the brake assembly. The pop-up deflector plate is disposed adjacent the nozzle and engages the rotatable connector in the extended position.

An irrigation nozzle is provided with a grit diversion feature to divert grit away from the interior of the nozzle. The nozzle includes a pattern template that defines the irrigation pattern produced by the nozzle. The pattern template includes one or more flow channels that may be susceptible to clogging with grit. The grit diversion feature includes one or more grit vents to redirect grit away from the interior of the nozzle and may further include an inner wall about the central hub that helps protect the central hub from intrusion by grit.

An irrigation nozzle is provided with a grit diversion feature to divert grit away from the interior of the nozzle. The nozzle includes a pattern template that defines the irrigation pattern produced by the nozzle. The pattern template includes one or more flow channels that may be susceptible to clogging with grit. The grit diversion feature includes one or more grit vents to redirect grit away from the interior of the nozzle and may further include an inner wall about the central hub that helps protect the central hub from intrusion by grit.

A rotary nozzle having a rotating shaft operating within a cylindrical housing is balanced by allowing passage of a small amount of pressurized fluid to be bled to an area between the outside of the opposite end of the shaft and the inside of the housing where the fluid force acts axially in an opposing direction upon the shaft to balance the axial inlet force exerted by the pressurized fluid. The balance of axial forces is self-regulating by controlling escape of the fluid through a tapered or frusto-conical region between the shaft and housing. A plurality of centrifugal weight segments around the inlet end of the shaft are thrust outwardly against the cylindrical housing to retard rotational speed while pressurized fluid around the centrifugal weight segments provides a fluid bearing between the weights and the housing.

An irrigation nozzle with a rotating deflector is provided whose rotational speed may be controlled by a friction brake. The nozzle may also include an arc adjustment valve having two portions that helically engage each other to define an opening that may be adjusted at the top of the sprinkler to a desired arcuate length. The arcuate length may be adjusted by pressing down and rotating a deflector to directly actuate the valve. The nozzle may also include a radius reduction valve that may be adjusted by actuation of an outer wall of the nozzle. Rotation of the outer wall causes a flow control member to move axially to or away from an inlet.

A sprinkler body for a rotating sprinkler includes a base securable to a source of water under pressure, a plurality of support struts connected to and extending from the base, and a deflector plate support connected to the plurality of support struts and disposed spaced from the base by the support struts. At least one of the plurality of support struts is wedge-shaped with an inward-facing apex. The support struts are configured to create a void in the water spray pattern away from a center pivot pipe and to direct the water spray downward to limit the effect of wind on the spray pattern.

In one aspect, a sprinkler is provided having a nozzle, a deflector that receives fluid flow from the nozzle, and a friction brake assembly that controls rotation of a deflector. The friction brake assembly is releasably connected to the frame in order to enhance serviceability of the sprinkler. In another aspect, a sprinkler is provided having a frame, a deflector rotatably connected to the frame, a nozzle, and a nozzle socket of the frame. The nozzle and nozzle socket have interlocking portions that releasably connect the nozzle to the frame. The nozzle may be easily removed for servicing. Further, the nozzle socket can be configured to receive a plurality of nozzles having different flow characteristics. A nozzle can be selected and utilized with the sprinkler according to the desired application for the sprinkler.

The invention relates to a high-pressure rotor nozzle comprising a main body having a channel for supplying a highly pressurised fluid, a nozzle holder which can be rotationally driven for this purpose via a hydraulically generated torque, and which has at least one nozzle connected to the channel in a manner open for fluid and acting in accordance with an axial recoil, wherein a leakage chamber forming a hydraulic axial bearing during operation is provided between the main body and the nozzle holder that can be axially adjusted in relation to same in a recoil-dependent manner, with said leakage chamber being connected to a first gap seal between the main body and the nozzle holder guiding a leakage fluid, wherein the high-pressure rotor nozzle is designed in such a way that the leakage chamber transitions into at least one throttle gap circumferentially surrounding the nozzle holder in an axial sub-region and varying in the axial extension thereof according to the movement path of the nozzle holder, wherein the throttle gap remains the same height over the axial length thereof.