TORO Hydroject® 3000/4000 Components
NOTES
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39
Accumulator Operation
Charged accumulator.
1. The accumulator will have a nitrogen pre-charge of 2500 PSI.
2. The piston is at the bottom the cylinder.
3. There is very little water in the bottom end.
Start up.
1. As the water pump begins to pump, water is forced into the accumulator.
2. The piston moves upwards as water is forced into the accumulator, compressing the nitrogen gas.
3. The nitrogen pressure and the water pressure are the same.
Ready for aeration.
1. The piston in the accumulator is about half way up.
2. The water pressure and the nitrogen pressure are the same. (approximately 5000-PSI) (relief valve setting).
Cycling valve opens.
1. As the cycling valve opens water is discharged to the injection nozzles.
2. The piston moves downward. (approximately 1/4 in).
Cycling valve closes.
1. As the cycling valve closed the water stop flowing to the nozzles.
2. The water from the water pump, flows into the accumulator and the piston moves up.
The cycle begins again ( 5.3 times a second).