
Netafim SpinNet Red/Red/Blue Sprinkler With Check Valve
Short, frequent watering cycles only work when every head starts and stops at the same moment. This bag of 25 SpinNet heads, Netafim item 64200-032030 and model 0355120070BL-B, is built for that job. Each R-R-BL head carries a red mist control, a red body and a blue spinner, with a check valve already fitted. Average flow is 18.4 GPH at 32 psi. The blue rotor holds a low trajectory, wetting a circle about 20 ft across from 1.5 m up at 36 psi. Because the check valve keeps water in the supply line, heads deliver instantly when the zone opens. At shutdown the same valve closes, so the line cannot drain onto the plants below. There is no bridge above the spinner, which removes the drip point a bridge would create. The heads hang below the pipe, keeping the pipe dry as well. A built-in vibration action helps keep mineral deposits from building up in the nozzle.
Running Short Watering and Misting Cycles
Instant on and off makes this head a good fit for propagation and germination, where cycles may last only seconds. The droplet size is suited to germinating seed in trays and flats. With heads 3 ft apart, one line covers a 10 ft bay with the heads 2 to 3 ft above the crop. The same line covers a 12 ft bay at up to 5 ft above the crop. Two lines 11 to 12 ft apart cover 20 to 24 ft bays from 3 ft above the crop. A 25 ft supply line holds 9 heads and draws about 3 GPM, while a 75 ft line with 25 heads draws about 8 GPM. Use 3/4 in polyethylene supply pipe up to 75 ft, with 1 in pipe beyond that. Install a valve, a 120 mesh filter and a 35 psi regulator at the head of each zone. Flush every pipe completely before attaching heads, since the check valves trap debris left in the lines. Parts come apart by hand for cleaning, and acid-resistant materials accept acid treatment.
Key Features
- Check valve fitted: Instant start and stop; no line drainage.
- 18.4 GPH at 32 psi: Red mist control and red body.
- Blue low-trajectory spinner: About 20 ft wetted diameter.
- Bridgeless head: No drip point above the crop.
- Anti-clog vibration: Resists mineral buildup in the nozzle.
- Tool-free service: Acid-resistant parts come apart by hand.
Technical Specifications
| Specification | Value |
|---|---|
| Item Number | 64200-032030 |
| Model | 0355120070BL-B |
| Code | R-R-BL |
| Configuration | Red mist control, red body, blue spinner, check valve |
| Trajectory | Low (blue spinner) |
| Average Flow | 18.4 GPH at 32 psi |
| Wetted Diameter | 6.0 m (20 ft) at 1.5 m height, 36 psi |
| Recommended Pressure | 29 - 43 psi (2.0 - 3.0 bar) |
| Filtration | 120 mesh (130 micron) |
| Materials | Acid resistant |
| Bag Quantity | 25 |