Don’t use the sprayer without having consulted the enclosed handbook.

12unigreen

4.8PRESSURE REGULATOR

To use the pressure regulator, follow the instructions in the enclosed handbook scrupulously. The pressure regulator controls all of the most important spraying functions, the thorough knowledge of its functions makes work easier and more precise.

The working pressure and the maximum pressure of the sprayer are determined by the pressure regulator which also protects the circuit from overpressure in any work conditions. (In serious but very rare cases, if the connecting pipes get blocked the pressure relief valve lets the pressure off) In some setups there may be a pump that can reach a pressure of 50 bar controlled by a regulator designed for 20 bar. In this case the maximum pressure that can be reached is 20 bar.

The regulators can be manual, mounted on the sprayer or at a distance to make the controls easier to use; or electrical with a control panel in the cabin. There are also regulator versions with mechanical remote controls with a cable. If the tractor has a waterproof cabin the use of electrical controls is obligatory.

4.8.1 COMPONENTS OF THE PRESSURE REGULATOR

Below you will find the indications for the main models fitted on Unigreen products.

A main ON-OFF command: “open” lets the fluid flow into the circuit in use; “closed” empties the tank.

B maximum pressure valve: adjusted by hand with the relevant knob (drains the excess liquid when the set pressure is reached).

C jets section tap: opens the corresponding jet boom or drains to the compensation regulator (G).

D auxiliary tap: can be used for various accessories (it is always manual). E volumetric pressure valve (proportional):

(when present) it regulates the spraying pressure. The valve automatically compensates variations in speed (within the scope of the same gear ratio), keeping the quantity of liquid supplied per surface unit (litres/hectare) unchanged.

Fself-cleaning filter: filters the delivery liquid.

G compensation regulators: suitably regulated, these make it possible to keep the pressure constant when one or more sections of jets is closed, they don’t influence treatments with the boom fully open.

Hmanometer: indicates the working pressure.

Connections:

R1 supply union

R2 drain union

R3 volumetric drain union

R4 jets section delivery union

R5 auxiliary delivery union

Control box for GCP ELETTRICO electrical regulators

I1 main control valve switch

I2 volumetric pressure valve switch (proportional)

I3 jets section valves switches

4.8.2 GENERAL INSTRUCTIONS

When using the pressure regulator, scrupulously observe the instructions in the enclosed handbook, below you will find generic indications for the major models fitted by Unigreen.

All the regulation and adjustment tests must be carried out with clean water.

Pressure regulators without a volumetric valve (GCP3-way - GRH-RVA) 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).

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

Page 12
Image 12
Unigreen P600, P500, P300 Components of the Pressure Regulator, Control box for GCP Elettrico electrical regulators

P400, P300, P500, P600 specifications

Unigreen is a leading manufacturer in the agricultural machinery sector, known for its innovative solutions that meet the growing demands of modern farming. Among its impressive lineup, the Unigreen P400, P300, P600, and P500 series have garnered attention for their advanced features, cutting-edge technologies, and exceptional performance.

The Unigreen P400 is a versatile sprayer suitable for medium to large-sized farms. One of its key features is the high-capacity tank that minimizes the need for frequent refills, allowing farmers to cover substantial areas in a single pass. The sprayer is equipped with advanced precision technology that ensures uniform application of chemicals, which is crucial for maximizing crop yield while minimizing waste.

On the other hand, the Unigreen P300 is designed for smaller operations but does not compromise on performance. It boasts a compact design that makes it easy to maneuver in tight spaces. Its lightweight construction facilitates transport, and it incorporates user-friendly controls that enhance the operational experience for farmers. The P300's efficient spraying system reduces drift, ensuring that chemicals are applied exactly where needed, thus protecting the surrounding environment.

Moving onto the P600 model, this sprayer is engineered for large-scale agricultural operations. It features an extensive range of customizable options that cater to specific farming needs. The P600's robust build is complemented by powerful engines that ensure reliability even in demanding conditions. Additionally, it incorporates state-of-the-art GPS and automated guidance systems, allowing for precise inter-row spraying and reducing overlap—this significantly improves efficiency and decreases operational costs.

Lastly, the Unigreen P500 bridges the gap between the P400 and P600, offering advanced technology in a slightly smaller package. One of its standout characteristics is the innovative boom design that provides exceptional stability in various terrains. The sprayer includes advanced monitoring systems that track performance metrics in real-time, enabling farmers to make informed decisions while in the field.

Overall, the Unigreen P series sprayers are distinguished by their user-centric designs, technological advancements, and high-performance capabilities. Their commitment to sustainability and efficiency makes them an excellent investment for progressive farming operations looking to enhance productivity and optimize resource use. Unigreen continues to innovate, ensuring that their products remain at the forefront of agricultural technology.