The new Trident liquid fertiliser nozzle from Billericay farm Sevices will, without the operator leaving the cab, deliver an application rate of 60-300 lit/ha at a constant speed of 12km/hr, or apply a constant 100 lit/ha at varying speeds between 6-20km/hr (ideal for headlands).
When applying liquid fertiliser with a conventional nozzle, the spray operator can only vary the application rate from the cab by a small amount by altering the speed and/or the pressure. If larger output changes are required, the outlets need to be reset individually.
This is not only very expensive in terms of nozzle purchases, but a cost in terms of the down-time spent by the operator when making changes to what could be 48 or more outlets across a boom.
Currently, the application of liquid fertiliser may require two or even three sets of the conventional multi-hole nozzles to apply the correct rate of nutrients required for a particular field or crop.
By fitting Trident nozzles with their unique auto-adjusting valve, frequent nozzle changes are eliminated and operators may need only fit one set of nozzles, which will apply a wide variation of fertiliser volume rates, especially at low pressures required to reduce crop scorch.
The Trident nozzle consists of a three-hole nozzle housing with a bayonet fitting. The nozzle has an internal autovalve that comprises a chamber and metering orifice surrounded by a resilient, but flexible, sheath. The sheath is manufactured using a specially developed material that’s expandable and reacts consistently and proportionately to increases/decreases in pressure.
When there is no flow/pressure the flexible sheath closes the exit aperture in the support plug. As pressure is increased the sheath expands in response to the increase and liquid flows out of the aperture and into a chamber at a rate directly proportional to the increase in pressure, and then exits as three consistent streams through the three orifices.
For more information visit: www.bfs.uk.com.
