Macnaught DDP75AN 80mm High Flow Air Operated Diaphragm Pump (Max 1050LPM)

The Macnaught DDP75AN is the largest pump in the Macnaught Max Flow series, delivering a remarkable 1050 LPM (277 GPM) to meet the most demanding fluid transfer needs. Engineered for high-volume, low air consumption, the DDP75AN is ideal for industrial sectors requiring the transfer of oils, diesel, coolants, slurries, paints, and mild adhesives.

Its robust aluminium construction and Nitrile Buna-N (NBR) diaphragms provide excellent chemical compatibility and durability. The center port configuration and threaded flange manifolds offer flexible connection options, making installation efficient across a wide range of systems.

FEATURES

• Ultra-high flow capacity: Up to 1050 LPM (277 GPM)
• Optimized flow: Lightweight spool ensures faster, smoother operation
• Effortless maintenance: Accessible air motor for quick and simple servicing
• Dry-run safe: No overheating or damage when running without liquid
• Deadhead resistant: Withstands closed discharge without harm
• Self-priming: Eliminates manual priming requirements
• Runs without lubrication: No inline lubricator needed for cleaner, low-maintenance operation
• Threaded flange manifolds: Supports both flange and threaded connections for versatile installation
• Center port design: Streamlined piping setup

SPECIFICATIONS

• Max air pressure: 20–101 PSI (1.37–6.96 bar)
• Inlet / outlet: 3" BSPT (F) / 3" DIN
• Air inlet: 3/4" BSPT (F)
• Max flow rate: 1050 LPM (277 GPM)
• Suction lift: 5.5 m (dry), 8 m (wet)
• Max solids handling: 10 mm
• Fluid temperature range: 0°C – 70°C (32°F – 158°F)
• Wetted parts: Aluminium, Nitrile Buna-N (NBR), SUS (cast iron components)
• Air motor: Aluminium
• Dimensions: Height 91.2 cm, Width 56 cm, Depth 38 cm

PACKAGE INCLUDES

• 1 unit of Diaphragm pump