| Standard installed nozzle: #83 | |
| Arc adjustment: Through-the-top | |
| Arc setting: 40° to 360° | |
| Quick check arc mechanism | |
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FEATURES
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Gear-drive: Water lubricated |
| Factory installed rubber logo cap | |
| Nozzle trajectory: 22.5° | |
| 5-year component part warranty | |
ST ROTORS: ST-90 / STG-900Hunter synthetic turf rotors are designed specifically to satisfy the unique needs of synthetic turf irrigation. Robust, reliable, and engineered for longevity in high flow and high pressure conditions, ST rotors in the 103' to 120' category are available in two configurations: ST-90 This model features a smaller exposed surface area and jar-top access to the riser assembly. The ST-90 is ideally suited for direct burial in the natural turf that is sometimes adjacent to the synthetic field to be irrigated. STG-900 Featuring a slightly larger exposed surface area, this model includes through-the-top access to the riser assembly. The STG-900 is ideally suited for installation within the ST vault that is installed under the synthetic surface. It can also be installed in the natural turf that is sometimes adjacent to the synthetic field to be irrigated.
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ST "VA" SWING JOINT: ST-2008VATraditional swing joints will cause the rotor to move back and forth as the elevation of the rotor is raised and lowered. While appropriate for natural turf installations, synthetic turf systems require a completely different approach. The best way to support the rotor's tremendous lateral thrust during operation is to place the rotor in a snug fitting hole within the vault's cover set. In order to set the rotor perfectly to grade and in this very specific location the swing joint must provide flexible movement in every direction, not only up and down, but also forward, backward, left and right. Ideally, this flexibility would include the ability to "reset" the elevation grade of the rotor should the enclosure settle downward during the vibratory compaction of the surrounding field base material. Enter the Hunter Vertical Alignment (VA) swing joint. Offering the ultimate in flexibility, our vertical alignment swing joint includes six pivot points for multi-axis movement plus a seventh pivot at the outlet for rotational adjustments of the valve and rotor assembly. Constructed of rugged 2" PVC pipe and fittings, this 315 PSI rated swing joint dramatically reduces dangerous water velocities and performance robbing pressure loss through the ST System's components.
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ST VALVE CONFIGURATION: ST-VBVFKFor some, the preferred approach to designing synthetic turf irrigation systems is the "block" type configuration with remotely located valves that are off the synthetic surface. The benefit of this configuration is that it removes all high-pressure mainlines from beneath the synthetic surface. Through the use of a remotely located isolation valve, constantly pressurized supply lines to the quick couplers can be removed from beneath the synthetic surface as well. For others, the preferred approach is to use valve-in-head (VIH) rotors. However, typical VIH rotors have an unacceptably high-pressure loss at the high flows and pressures that are inherent in all synthetic turf irrigation systems. As a result, the Hunter ST System utilizes a valve adjacent to head (VAH) configuration. This design lowers the pressure loss down to a very acceptable 3.9 PSI at 75 GPM through the valve assembly.
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STG-900*Celková výška: 148"Výška výsuvu: 6" Priemer: 8" Pripojenie: 1½" Acme * For use with the ST173026B Vault |
ST-90*Celková výška 11½"Výška výsuvu: 3" Priemer: 5½" Pripojenie: 1½" female NPT * Not for use with the ST Vault |
