RK-44 Brass Impact Sprinkler – 1" MNPT Full Circle 23° with Diffuser Screw

RK-44 – 1" MNPT Full Circle Brass Impact Sprinkler (23°) with Diffuser Screw

The RK-44 is a 1" MNPT full-circle brass impact sprinkler with a 23° trajectory, dual 9/32" x 1/8" nozzles, and a diffuser screw. With a flow range of 13.5–29 GPM and a radius of 51.8–69 ft at 35–70 PSI, it provides both high flow capacity and in-field adjustability — the diffuser screw allows radius reduction without removing or changing nozzles.

Key Features and Benefits

• Diffuser screw — enables radius reduction on-site without nozzle changes, simplifying adjustment for edge rows, obstacles, and irregular field shapes.
• 23° trajectory — lower than the standard 27° for improved performance in moderately wind-exposed conditions.
• High flow range (13.5–29 GPM) — suited to large-system designs with 1" supply laterals.
• 51.8–69 ft radius — wide coverage per riser reduces installation cost in large-block irrigated areas.
• Bronze body and arm — corrosion-resistant for continuous field service.
• Brass nut and tube — precise nozzle alignment for consistent distribution uniformity.
• Stainless steel spring and pin — reliable impact drive for long-term low-maintenance operation.

Construction

Bronze body and arm, brass nut and tube, stainless steel spring and pin. Spring arm impact drive.