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Dynaset Oy | Menotie 3, FI-33470 Ylöjärvi, Finland | tel: +358 3 3488 200 | [email protected] | www.dynaset.com
HIGH PRESSURE WATER PUMPS
OPERATION
5.2. ADJUSTING FLOW RATE AND PRESSURE OF PUMPING FLUID
5.2.1. ADJUSTING FLOW RATE AND PRESSURE WITH WATER UNLOADER
VALVE
Picture 27: HPW pump with water pressure unloader valve
1. The water unloader valve is used to adjust the desired maximum output pres-
sure limit. The adjusting knob is tightened to increase pressure and loosened to
decrease pressure.
2. Whereupon the adjusted maximum pressure limit is being reached, water
unloader valve circulaters the water within the pump and prevents the output
pressure to rise over the limit.
NOTE!
Do not use unloader mode continuously over 5 minutes.
5.2.2. ADJUSTING FLOW RATE AND PRESSURE WITHOUT WATER
UNLOADER VALVE
Picture 28: HPW pump without water pressure unloader valve
1. The water pressure and flow are adjusted by adjusting corresponding parame-
ters in the hydraulic circuit.
2. In circuits based on fixed displacement pump closing the water pressure line
opens the pressure relief valve in hydraulic system.
Summary of Contents for HPW 1000
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