- Periodic diaphragm examination for wear and replacement when needed: Keep track of strokes with a stroke counter between each diaphragm replacement.
- Check the pump’s hardware tightness to prevent leaks and seal damage: Pump hardware loosens with temperature fluctuations and vibrations over time. The operation manual provides the right hardware torque. However, make sure to avoid hardware tightening under pressure.
5 Pointer AODD Pump Maintenance Checklist
1. Maintain clean airflow
As the name suggests, an air-operated double diaphragm pump functions with compressed air. Unclean air entering the pump can cause severe damage to the air distribution system (ADS).
If you want to ensure a longer lifespan of your AODD pump, install a regulator unit or air filter unit. It can keep the wet air and contaminated air with particles out of your pump. Clean the air filter on a timely basis to keep it functioning well.
2. Keep the air pressure steady
Maintaining the right and steady air pressure can ensure your AODD pump works at full capacity. If the air pressure is higher, the AODD pump can pump faster than it should. This can cause inefficiency in operations, quick wear of the pump parts, and premature failure.
Your regulator unit or the air filter can maintain your pump pressure. This ensures clean and complete strokes, with all the fluid getting enough time to enter and exit fluid chambers.
3. Routine inspections
Due to their durability, AODD pumps are used in some of the harshest environments. However, build-up in pump lines is common in some industries, such as wastewater treatment and mining.
Schedule routine inspections and maintenance to ensure clean lines and efficient operations. Depending on the hours your AODD pump runs, you can schedule these regularly, either weekly, monthly, or annually. If you keep an eye on the discharge flow rate, you’ll know if there’s a change in efficiency. If there is, it's a marker of the need for your AODD pump maintenance.
