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Air Operated Diaphragm Pumps – Macnaught

  • Up to 42 / 45 / 174 / 265 / 598 litres per minute flow rate – Measured with water at the pump outlet
  • Air-Operated pumps can be speed controlled – More control over a pump output
  • Fast fluid transfer for low viscosity fluids – Inexpensive way to move large volumes of fluid
  • Easy self-priming – No damage to pump while running even with little or no fluid flow (for short periods)
Model DDP13 DDP19 DDP25 DDP38 DDP50
Maximum Air Pressure 690kPa (100psi) 690kPa (100psi) 690kPa (100psi) 690kPa (100psi) 690kPa (100psi)
Inlet / Outlet Ports 1/2″ NPT (F) 3/4″ NPT (F) 1″ BSP (F) 1 1/2″ BSP (F) 2″ BSP (F)
Air Inlet Size/Type 3/8″ NPT (F) 3/8″ NPT (F) 1/2″ NPT (F) 1/2″ NPT (F) 1/2″ NPT (F)
Maximum Flow Rate 42 L/min (viscosity dependant) 45 L/min (viscosity dependant) 174 L/min (viscosity dependant) 265 L/min (viscosity dependant) 598 L/min (viscosity dependant)
Fluid Compatibility Oils (new and used), Hot Oils (-23°C to 88°C), RTU coolants (new and used), Oily water and Diesel Oils (new and used), Hot Oils (-23°C to 88°C), RTU coolants (new and used), Oily water and Diesel Oils (new and used), Hot Oils (-23°C to 88°C), RTU coolants (new and used), Oily water and Diesel Oils (new and used), Hot Oils (-12°C to 82°C), RTU coolants (new and used), Oily water and Diesel Oils (new and used), Hot Oils (-12°C to 82°C), RTU coolants (new and used), Oily water and Diesel