Task
Dose and transfer lime milk from IBCs into various wastewater tanks. A flow rate of approximately 60 l/min is required. The centrifugal pump used to date causes excessive wear and does not meet the requirements for service life and operational reliability.
Requirements
- Flow rate approx. 60 l/min
- Significantly reduce wear
Solution in Detail
Use of an RFM 25 air-operated diaphragm pump with flap valves, combined with a suction pipe and an IBC lid. The self-priming, dry-run-protected pump is designed for abrasive media and is operated via a pressure reducer.
Result
Reliable continuous operation without any outages for 18 months
60% reduction in dosing deviation
Cleaning time per pump change: less than 5 minutes
Low shear forces reduce mechanical stress
Products used
Compressed-air diaphragm pump with specially selected accessories for abrasive media and IBC emptying — including a suction line and pressure control.
Air-operated diaphragm pumps
Diaphragm pumps for pumping even abrasive fluids
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