FCI Upgrade Nozzles for Rain Bird® 51 Upgrade
Performance Chart

The Rain Bird® 51 is the most successful impact sprinkler ever designed for use on golf courses. Retrofitting with FCI nozzles, and properly tensioning the arm spring, uniformity of this sprinkler will maximize performance to its highest potential. You will notice an increase in the amount of water being distributed away from the head and into the mid-range area. The FCI drive nozzle is designed to reduce the plugging potential, characteristic of the factory drive nozzle. Click here for Arm and Spring Adjustment Information.

FCI Nozzle Sizes Available:

FCI nozzles are available to retrofit the following nozzle sizes of the RB 51: #14, #16, #18, #20, #22, and #24. (Flow rates, and radii of throw are within 5% of the Rain Bird® performance charts for equivalent sizes. FCI nozzle sizes for the RB 51 are color coded.)

A weight calibrated to properly set the arm spring tension of the RB51 Impact mechanism is also available from FCI. See our price list for details.

Current Price Listing

Arm and Spring Adjustment Information

• "We just completed aerating fairways and in the past we would always see dry spots in several of the same spots. Those areas where we had installed the FCI nozzles in our RB51 heads didn’t show the same historical hot spots as in years past, I’m a believer now!"