Air Operated Double DiaphragmPump
The MK FLOW Air Operated Double Diaphragm Pump (AODD) is a versatile, self-priming, and portable pump powered by compressed air. It is designed to handle a wide range of fluids—from clean, light liquids to viscous, abrasive, corrosive, or slurry-based fluids—with reliable, leak-free operation. The pump uses a pair of diaphragms and air valves to create reciprocating suction and discharge cycles, making it ideal for chemical transfer, wastewater handling, and industrial fluid processing.
⚙️ Working Principle
An AODD pump operates by using compressed air to alternately move two flexible diaphragms. As one diaphragm creates suction, the other expels fluid through the outlet. Check valves ensure one-way fluid movement, allowing continuous and self-priming operation even when dry or submerged.
📊 Technical Data
| Parameter | Specification |
|---|---|
| Pump Type | Air Operated, Double Diaphragm |
| Flow Rate | Up to 1000 LPM (60 m³/h) |
| Max Discharge Pressure | Up to 8 bar (116 psi) |
| Max Suction Lift | Dry: Up to 5 meters, Wet: Up to 8 meters |
| Air Supply Pressure | 1.4 to 7 bar (20–100 psi) |
| Solid Handling Size | Up to 10 mm (depending on model) |
| Operating Temperature | Up to 100°C (higher for PTFE diaphragms) |
| Self-Priming | Yes, dry and wet |
| Run Dry Capability | Yes |
| Port Sizes | ¼” to 3” |
| Diaphragm Material | Neoprene, PTFE, Santoprene, EPDM, Viton |
| Ball Valve Material | PTFE, Stainless Steel, Nitrile |
| Pump Body Material | Aluminum, Cast Iron, SS316, Polypropylene, PVDF |
🔩 Material of Construction (MOC)
| Component | Available Materials |
|---|---|
| Pump Body | Aluminum, SS316, Cast Iron, PP, PVDF |
| Diaphragms | Neoprene, Santoprene, PTFE, EPDM, Viton |
| Valve Balls | PTFE, NBR, SS316, EPDM |
| Seat & O-rings | PTFE, Viton, EPDM |
| Air Valve | Aluminum / Stainless Steel |
🏭 Applications
- Chemical & Acid Transfer
- Paints, Inks, Resins & Coatings
- Oil & Petroleum Fluids
- Wastewater, Slurry & Dewatering
- Food, Beverages, and Cosmetics (with hygienic models)
- Construction, Mining, and Ceramics Industries
✅ Conclusion
The MK FLOW Air Operated Double Diaphragm Pump offers unmatched flexibility and reliability for handling a wide range of challenging fluids. With its self-priming, dry-run, and explosion-proof capabilities, it is ideal for tough industrial environments. Its modular construction and availability in various materials ensure compatibility with nearly any fluid, making it a dependable solution for fluid transfer across multiple industries.