Abstract: A sprinkler that includes an internal flow adjustment valve is provided. The valve enables an operator of the sprinkler to selectively shut off, turn back on, or adjust the flow of water through the sprinkler while a riser of the sprinkler is in its extended position. The valve includes a valve seat disposed on an internal flow tube and a valve plunger having an actuation shaft and a throttle nut. An outboard end of the actuation shaft can be accessed and rotated at a riser cap, which causes vertical movement of the valve plunger as threads on an inboard end of the actuation shaft engage a threaded passage disposed in the internal flow tube. Vertical movement of the valve plunger causes movement of the throttle nut relative to the valve seat and opening and closing of the valve. The throttle nut and the valve seat may have corresponding dual helical surfaces.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A deep root watering unit is described herein that includes an elongated hollow sleeve member and a grate-retaining housing mounted at an upper end of the sleeve member. A cap configured as a grate can be attached to the top portion of the housing. The deep root watering unit is advantageously configured to facilitate insertion and removal of the cap, irrigation adjacent to the housing, and/or distribution of fluid to adjacent irrigation devices.

Abstract: An improved inground protective housing for components of underground systems is provided. The housing is configured so that it may be placed over the components that are already installed in the ground. Window knockouts, as well as an easily removable bottom flange portion corresponding to a window knockout, are provided to ease the installation of the housing.

Abstract: A deep root watering unit is described herein that includes an elongated hollow sleeve member and a grate-retaining housing mounted at an upper end of the sleeve member. A cap configured as a grate can be attached to the top portion of the housing. The deep root watering unit is advantageously configured to facilitate insertion and removal of the cap, irrigation adjacent to the housing, and/or distribution of fluid to adjacent irrigation devices.