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Air Operated Double Diaphragm Pump 3/4″ – Macnaught

Experience the next level of fluid transfer efficiency with our Max Flow Series Double Diaphragm Pumps. Made in Japan for precision and durability, these pumps operate at a 1:1 ratio with a 130 LPM flow rate, making them ideal for high-volume, low air consumption across industries. Dependable, low-maintenance, and versatile. They are designed to keep your operations running smoothly

  • Convenient Side Port – Easy access for streamlined installation and flexible piping
  • Max Flow Diaphragms – Bigger Diaphragm size for better flow rate and longer life
  • Glass-Filled Polypropylene Body – Wide range of chemical compatibility for broader applications
  • High Flow Rates – Designed to facilitate high discharge volume up to 130 L/min
  • Low Air Consumption – Allows quieter operations
  • Machined Mating Surfaces – Reducing any chances of leaks
  • Optimised Flow – Lighter spool ensures faster, smoother operation
  • Effortless Maintenance – Easily accessible air motor for quick and hassle-free servicing
  • Dry-Run Safe – No overheating, runs without liquid
  • Deadhead Resistant – Withstands closed discharge without damage
  • Self-Priming – Eliminates the need for manual priming
  • No inline lubrication required – Reduces maintenance and operational costs
Model M-DDP19GN-01
Ratio 1:1
Max. Flow Rate 130 L/min
Fluid Inlet / Outlet 3/4″ BSPT (F)
Air Inlet 3/8″ BSPT (F)
Max. Air Pressure 0.7MPa / 100psi
Max. Solid Size 2mm
Suction Lift 3m (dry) & 8m (wet)
Max. Air Consumption 1300 L/min (ANR) [45.90 SCFM]
Liquid Temp. (°C) 0°C – 60°C
Noise Level (ISO 1996) 85 dB
Recommended Fluid Oils (new & used), Engine Coolants (new and used), Oily water, Diesel, Diluted Acids (Sulfuric Acid, Hydrofluoric Acid)
Diaphragm Nitrile Buna-N (NBR)
Pump Wetted Parts Glass-Filled Polypropylene (PPG), and Nitrile Buna-N (NBR)