Macnaught DDP50AN 50mm High Flow Air Operated Diaphragm Pump (Max 800LPM)

The Macnaught DDP50AN is a powerful air-operated double diaphragm pump designed for high-volume fluid transfer with maximum efficiency. Part of Macnaught’s Max Flow series, the DDP50AN delivers an impressive 800 LPM (211 GPM) while maintaining low air consumption, making it ideal for industries handling large quantities of oils, diesel, coolants, paints, adhesives, and slurries.

Built with an aluminium body and Nitrile Buna-N (NBR) diaphragms, the pump provides excellent chemical compatibility and durability for harsh working environments. Its center port and threaded flange manifold design offer flexible installation options to suit a wide range of applications.

FEATURES

• High flow performance: Up to 800 LPM (211 GPM) for rapid fluid transfer
• Optimized flow: Lightweight spool ensures smoother, faster operation
• Effortless maintenance: Accessible air motor for quick, hassle-free servicing
• Dry-run safe: Operates without liquid, no overheating risk
• Deadhead resistant: Withstands closed discharge without damage
• Self-priming: No manual priming required
• No inline lubrication needed: Lowers maintenance and operational costs
• Threaded flange manifolds: Enables both flange and threaded connection options for greater installation flexibility
• Center port design: Simplifies piping setup

SPECIFICATIONS

• Max air pressure: 20–101 PSI (1.37–6.96 bar)
• Inlet / outlet: 2" BSPT (F) / 2" DIN
• Air inlet: 3/4" BSPT (F)
• Max flow rate: 800 LPM (211 GPM)
• Suction lift: 5.5 m (dry), 8 m (wet)
• Max solids handling: 8 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 75.1 cm, Width 45.8 cm, Depth 38 cm

PACKAGE INCLUDES

• 1 unit of Diaphragm pump