difficult testing operations.
(10)In this case, ensure that inlet hose and bypass hose aren’t too close, in order
to avoid turbolences inside tanks.
(11)Air accumulator is loaded at 5÷6 bar, corresponding to max working pressure
of the pump. This tank avoids pressure oscillating at outlet. For this reason,
to have the best pressure control, periodically check pressure inside air tank,
by connecting a car wheels air gun to the valve on the head. If necessary,
load the accumulator to 5÷6 bar max.
(12)We suggest to keep max suction height under 3 m. Use always hoses without
bendings and, if possible, filled with water.
(13)
Pump can be started only with bypass valve completely opened. In this way
you won’t load (and overheat) without reason the motor during start
transient. The connection of the high pressure hose must be made without
high torque, in order to not damage connection threads.
Working
Working
Plant Tests
Put the pump on a horizontal surface. Connect test instrument to the plant. Open test
valve and bypass valve.
When the water flow begins, close bypass valve and fill the plant with the water, and
outflow all air or gases in general inside plant.
Turn press valve in order to reach requested pressure, then close test instrument
valve and open bypass lever.
During the test you can leave test instrument on the plant and disconnect the pump.
Using differents test instruments, it’s possible to make different parallel test using
only a pump.
Fillings and Transplantings
Check always chemical compatibility before working. The std version is equipped with
Nitrile gaskets. Inlet and bypass hose must be put into the tank with the liquid to be
transplanted. High pressure outlet hose must be connected to the system to be filled
(i.e. solar panel system) or into the tank to be filled. It’s possible to leave inlet filter
only if the working fluid is clean and without suspended particles.
Before starting pump, open completely bypass pump.
After Use
Cleaning: To preserve good working performance, after working, you may clean the
pump by pumpung for 2-3 minutes clean water, then leaving the pump on without
inlet flow, to dry the head inside.
Low Temperatures: Avoid frozen water inside the pump: it can damage pump and
gaskets. After use, dry the pump and/or pump inside a no-frost solution (water and
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