The professional pressure regulating unit allows to adjust the pump outlet pressure (from 0 to 40 bar) through the upper gray knob. The gray lever with bypass system, on the other hand, allows the transition from low pressure (in which the pump does a simple water recirculation function) to high pressure for carrying out the treatments.
Also the regulation unit is of Comet production, GCP standard series, with 3 ways. This is equipped with 3 outlets, all available, each one provided with faucet that can be used for different purposes.
Generally the two horizontal outlets are used to connect, for example, a pair of spraying cannons for orchards / olive groves, or stainless steel bars for vineyards, etc ... Instead, the central faucet upwards is most often used to connect a hose reel or simply loose hose with a lance or guns for spraying done directly by hand by the operator.
The black side fitting is the surplus outlet. In fact, all the liquid that is not used through pumping will come out of that fitting, which must therefore be connected with a piece of pipe to the tank from which it is being sucked. You can take advantage of this surplus to carry out even a small mixing operation of the liquid.
The whole pressure regulation unit can be transferred directly to the tractor cabin by purchasing the appropriate remote transfer kit (which specifically lengthens the tubes).