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Air Operated Double Diaphragm Pump 1 1/2″ – 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 180 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.

  • High Flow Rates – Designed to facilitate high discharge volume up to 600 L/min
  • Max Flow Diaphragms – Bigger Diaphragm size for better flow rate and longer life
  • Threaded Flange Manifolds – Provides a wider option of both flange and threaded connection availability
  • Convenient Side Port – Easy access for streamlined installation and flexible piping
  • Low Air Consumption – Allows quieter operations
  • Aluminium body – Wide range of chemical compatibility for broader applications
  • Handles Slurries – Transfers high-viscosity, abrasive slurries
  • 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-DDP38AN-01
Ratio 1:1
Max. Flow Rate 600 L/min
Fluid Inlet / Outlet 1 1/2″ BSPT (F) / 1 1/2″ DIN
Air Inlet 3/4″ BSPT (F)
Max. Air Pressure 0.85MPa / 125psi
Max. Solid Size 8mm
Suction Lift 5.5m (dry) & 8m (wet)
Max. Air Consumption 5000 L/min (ANR) [176.55 SCFM]
Liquid Temp. (°C) 0°C – 70°C
Noise Level (ISO 1996) 97 dB
Applications Oils (new & used), Engine Coolants (new & used), oily water, Antifreeze, Diesel, Paints, Mild Adhesives.
Diaphragm Nitrile Buna-N (NBR)
Pump Wetted Parts Aluminium and Nitrile Buna-N (NBR)