Trident, consisting of a three-hole nozzle housing with a bayonet fitting, accurately applies unbroken streams of liquid fertiliser to a target surface. The nozzle has an internal auto-valve that comprises a chamber and metering orifice surrounded by a resilient, but flexible, sheath, which is 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.
The Dribble Bar accurately applies liquid fertiliser through four equally spaced openings along the bar. The rates can be pre-set to one of eleven different flow-rates by just a simple adjustment of the flow dial. Rates can be altered in the field without removing the dribble bars from the boom.