POWERFLOW sprayers comprise a lightweight tubular chassis which is both simple and robust. The axles, which are positioned centrally and can be adjusted to the tractor's track width, offer excellent load distribution. The articulated drawbar, fitted on a bearing, improves handling. The POWERFLOW VTD is equipped with a smooth polyethylene tank to prevent damage to the vines. The rinsing tank and the hand wash reservoir are integrated into the main tank. This range is available with a choice of tank capacities to satisfy your requirements.
The spray product follows a circuit carefully designed and optimised by our developers. You add the product to a mixer screen which is then fed through a low pressure filter. It is circulated by a four-piston diaphragm pump with a sufficient capacity to ensure optimum priming of the circuit and efficient mixing. It is then conveyed to the regulation and distribution rail via a high pressure filter. The regulation and distribution controls vary according to the model: DPAE flow regulator for automatic management of the product amount, or manual regulation.
Suitable for row widths from 2 to 3.20m, the POWERFLOW VTD offers formidable efficiency in large vineyards. The 2-speed multiplier system with neutral allows the speed of the turbine, with a diameter of 750mm, to be modulated. The inverted air intake system prevents any recirculation of products or pick-up of debris. Stainless flaps support twin-jet diffusers tilted 30° backwards to help penetration of the product. A uniform air flow, directed horizontally, is provided by the exclusively designed DX'PLUS vertical tower, optimising distribution of the product over the plants.
Dx'Plus is a tower with a specific design. It enables air to flow uniformly, and the product to be mixed perfectly. Twin-jet diffusers on stainless flaps tilted 30° backwards also allow optimum penetration of the product into the plant canopy.
EASYselect is a centralisation device for the valves supplying your sprayer. It controls the external mixer, the rinsing nozzle, the stainless container rinsing screen, the cleaning lance and hydro-injectors to simplify cleaning of your equipment.
POWERFLOW groups together all of GREGOIRE's aero-convection sprayers. This spraying principle combines simplicity with efficiency and high working speeds. It is available with 5 different towers or turbines, to ensure it can be adapted to suit every vineyard.
All sprayers in the GREGOIRE range have been approved since 2011. This relates to all trailed models with a GVW of over 1500 Kg. In force since 1st January 2013, this French regulation stipulates that an application must be made to the DREAL to obtain the registration certificate.
Frame and Tank
Rotation moulded tanks
Integrated rinsing tank and hand wash reservoir
Rinsing nozzle available as an option
On-board version, 400l or 600l
Towed version, 1000l, 1500l or 2000l
Mechanically welded chassis
Bogie wheels available as an option
Indicators for road use
Pump, regulation and controls
4-piston diaphragm pump (105l/min at 50 bar).
Pressure maintained by the air chamber.
50 hp cardan shaft, constant-velocity joint on machine side
Pump with 4 quarter turn valves
Triple filtration: filling screen, 365 µm pick-up filter and bronze high pressure filter.