Pressure regulators with a volumetric valve (GCP ELETTRICO)

Adjusting the maximum pressure valve

=put main control A in the drain position (“OFF”).

=loosen the hand wheel of maximum pressure valve B completely (anticlockwise).

=open volumetric valve E completely.

=start the pump by activating the power-takeoff of the tractor at 540rpm

=open main control A (position “ON”), the manometer will be activated

=open the drain tap on filter F slightly (only GCP ELETTRICO).

=close volumetric valve E completely. If the pressure rises over the maximum limit of the system, make sure maximum pressure valve B is open (see previous indications)

=open all of the section valves C (position “ON”)

=adjust maximum pressure valve B to a value over that of the working

pressure (generally 10-14 bar) and in any case lower than the safe maximum pressure that the system can reach.

Adjusting the volumetric pressure.

=with the volumetric pressure valve E adjust the pressure to the value the treatment will be done at (the pressure is indicated on the nozzles tables on the basis of the tractor speed and litres/hectare to spray)

Warning! The working pressure must be adjusted with the volumetric valve and not with the maximum pressure valve. In the case the working pressure is too near to the calibrated pressure of the maximum pressure valve, the proportional valve may not be able to compensate the speed variations correctly.

Adjusting the compensated returns

=close only one tap of section C (position “OFF”).

=adjust the corresponding compensator G until you return to the pressure set previously (displayed on the manometer).

=open and close the tap of section C and check that the pressure remains constant.

= repeat the above operations for all the section taps.

 

 

 

+ filter

If the types of nozzles aren’t changed the regulations carried out will guarantee

 

 

 

 

 

 

a constant spraying of the liquid also per treatments that are done at different

 

 

 

working pressures.

 

 

 

 

NB: if the type of nozzle is changed then the calibrating will have to be done

 

 

 

again.

 

 

 

 

4.9 DELIVERY FILTERS (ONLY EQUIPPED MODELS)

 

 

 

This is particularly useful when using small nozzles (low volume), they are

 

 

 

normally mounted on the jet booms and have a filter cartridge with a 40-gauge

 

 

 

mesh (the equivalent of a 0.4 mm hole).

 

 

 

 

In the RV version, the standard cartridge has a 86-gauge mesh (the equivalent

 

 

 

of a 0.25mm hole) and another manometer is mounted after the cartridge to

 

 

 

make fault-finding easier.

 

 

 

 

At the end of each treatment cycle you should clean the cartridge: turn the

 

 

 

jets to the closed position, put the command under pressure and open the tap

 

 

 

under the filter to drain the tank for a few minutes.

 

 

 

You should clean the cartridge by hand periodically, on the basis of the

 

 

 

product used. Stop the pump to clean. Wear rubber gloves and the other

 

 

 

personal protective equipment when cleaning.

 

 

 

40 mesh

RV 86 mesh

 

 

 

FIG. 9

unigreen 13

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Unigreen DEVIL, SIRIO Pressure regulators with a volumetric valve GCP Elettrico, Delivery Filters only Equipped Models
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AP APC, DEVIL, serie EOLO, EXPO, SIRIO specifications

Unigreen is recognized for its innovative agricultural machinery, particularly in the realm of spraying technology. Among its flagship products are the SIRIO, EXPO, DEVIL, AP APC, and the EOLO series, each designed to cater to the diverse needs of modern-day farming.

The SIRIO line is particularly lauded for its versatility and efficiency. This series is engineered for precision application, equipped with advanced GPS technology that allows for automatic section control. The ability to adjust spray patterns and flow rates in real-time ensures minimal waste and optimal coverage, which translates to both economic and environmental benefits. Its durable construction also promises longevity, making it a reliable choice for farmers looking for investment-worthy equipment.

The EXPO series is tailored for open-field spraying. It boasts an impressive working width and can cover large areas quickly. The EXPO's multifunctional design includes a user-friendly interface, allowing operators to monitor and adjust performance easily. This model emphasizes user comfort and safety, featuring advanced anti-drip systems to minimize environmental impact during operation.

Next, the DEVIL is particularly noteworthy for its compact design and agility. Ideal for vineyards and orchards, the DEVIL allows for precise application in constrained spaces, facilitating detailed and targeted treatments. Its lightweight build ensures easy maneuverability without sacrificing power, and the robust motor guarantees consistent performance.

The AP APC series stands out for its multi-purpose functionality. This range is designed to perform well under diverse environmental conditions, making it suitable for various crops. The addition of a high-capacity tank allows for extended working hours without frequent refills, enhancing productivity. Furthermore, its low-center-of-gravity design improves stability on uneven terrains.

Lastly, the EOLO series showcases Unigreen's commitment to eco-friendliness. These machines feature low-drift nozzles that keep the chemicals where they are needed most, which helps in minimizing off-target application. The EOLO series also incorporates energy-efficient technologies, reducing fuel consumption and greenhouse gas emissions.

In summary, Unigreen's SIRIO, EXPO, DEVIL, AP APC, and EOLO series represent a blend of innovation, efficiency, and environmental responsibility. Each model is designed to meet the specific requirements of various agricultural environments, ensuring that farmers can operate at peak efficiency while contributing to sustainable farming practices.
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