RK-1/2XL Brass Primary Nozzle 1/2" – For 1-1/4" Head (RK-55)
$7.45
Replacement brass primary nozzle sized 1/2" for the RK-55 1-1/4" brass impact sprinkler head. The primary nozzle controls the main stream flow rate and throw radius on this large-area head. This size (1/2"): mid flow and radius.
| Nozzle Size | 1/2" |
|---|---|
| Type | Primary (main stream) |
| Compatible Heads | 1-1/4" brass impact — RK-55 |
| Material | Brass |
Availability:
In stock
SKU
RK-1/2XL
Ships Same Day
All orders placed by 12 PM local warehouse time will ship the same day. Some exclusions apply. Delivery time may increase if item isn't available in closest warehouse.
Delivery time: 2-4 business days
RK-1/2XL – 1/2" Brass Primary Nozzle for 1-1/4" Impact Head (RK-55)
The RK-1/2XL is a 1/2" brass replacement primary nozzle for the RK-55 1-1/4" brass impact sprinkler head. The RK-55 is used in large-area commercial agricultural irrigation where high flow and long throw are required. Nozzle selection directly sets the head's flow rate and throw radius, making it the primary tool for tuning system output to match available pressure and desired spacing.
Key Features and Benefits
- Size 1/2" — Mid flow and radius. Match to operating pressure, head spacing, and target application rate.
- Brass construction — built for durability in large-area continuous-run agricultural and pasture irrigation systems.
- Nozzle sizing principle — smaller orifice reduces flow and radius; larger orifice increases both. Consult RK-55 performance data for specific flow and radius values at your operating pressure.
- Field-replaceable — swap nozzles quickly to retune output without replacing the head assembly.
Compatibility
Fits the RK-55 1-1/4" brass impact sprinkler head only.