5. Operation
13
Pay attention to possible faults
Read the instructions carefully
5.4
Poor Cleaning Performance
- Inadequate Flow and Pressure
Check the pressure at the Alfa Laval Gamajet inlet under actual operating conditions. The supply piping and hoses must be
large enough to handle the flow rate required for the nozzle size being used to ensure adequate pressure.
Insufficient pressure may also result from line losses when the machine is far from the pump, so the line size must be increased
accordingly for long runs. Although the Alfa Laval Gamajet will rotate at low flow rates, effective cleaning may require
considerably more flow. Proper mechanical operation (the unit turns) is NOT the same thing as effective cleaning (the soils
have been removed)!
- Chemical Concentration and Temperature
Verify that the cleaning solution is the correct compound and in the concentration needed for the deposit being cleaned. If
heating is necessary, also check that the solution is at the proper temperature.
- Plugged Nozzles
Unscrew the Nozzles (7) and inspect for any debris.
- Slow or no Rotation of the Housings
This will result in partial or erratic washing coverage. Refer to previous sections for more information.
- Alfa Laval Gamajet Configuration
Determine if the deposit being cleaned requires greater jet impact or longer jet dwell time (slower rotation) for more thorough
scrubbing. Confirm that the Alfa Laval Gamajet nozzle size, turbine, and gearing are correct for the specific application. Contact
Alfa Laval Tank Equipment for assistance, if needed.
- Inadequate Drainage
Ensure that the vessel drains the effluent or used wash fluid as fast
as it’s being sprayed in through the Alfa Laval Gamajet.
The floor of the vessel should be sloped or pitched toward the drain and the drainage opening should be large enough to
gravity-drain the effluent from the vessel. If you still have puddling (build-up of the wash fluid so it covers the floor and shields
the residues underneath), use some form of pump to suck out the effluent.
