P.A. VRPP 600, Техническое руководство

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Last update: 03/11/2011
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PRESSURE ADJUSTMENT/SETTING
The adjustment has to be made with the system under pressure and the gun open and with the air feed pressure at 4 bar – 0.4 MPa.
Vary the pressure by screwing/unscrewing the jack head (pos.24). This operation will be less difficult if the correct nozzle has been
chosen. Upon screwing the jack head (pos.24), it must correspond with a pressure increase; failing this before the desired value, do not
insist, but verify the correct ratio nozzle/rated pressure. Upon reaching the desired pressure, tighten the nut (pos.21). After setting the
maximum pressure, it is possible anyhow to vary the valve work pressure by adjusting the air feed pressure. By increasing air
feed pressure, valve pressure will increase as well. To decrease valve pressure, it is necessary to reset air pressure and subsequently
increase it again up to the desired pressure level. If the air feed is interrupted the complete circuit will go into low pressure.