Watson-Marlow 520Di Peristaltic Pump with 313D Pumphead for Precise Fluid Control

The Watson-Marlow 520Di Peristaltic Pump equipped with the 313D 3-roller flip-top pumphead offers fast, error-free tube loading and precise fluid control. Operating over a speed range of 0.1 to 350 rpm with an accuracy of ±0.5%, this pump supports multiple tubing sizes for varied flow requirements critical in biotechnology and molecular diagnostics workflows.

• Flow rates per tube bore size:
• 0.5 mm: 0.03 ml/rev; max continuous 12 ml/min; intermittent 18 ml/min
• 0.8 mm: 0.06 ml/rev; max continuous 24 ml/min; intermittent 36 ml/min
• 1.6 mm: 0.26 ml/rev; max continuous 104 ml/min; intermittent 156 ml/min
• 3.2 mm: 1.0 ml/rev; max continuous 400 ml/min; intermittent 600 ml/min
• 4.8 mm: 2.2 ml/rev; max continuous 880 ml/min; intermittent 1320 ml/min
• 6.4 mm: 3.6 ml/rev; max continuous 1400 ml/min; intermittent 2160 ml/min
• 8.0 mm: 5.0 ml/rev; max continuous 2000 ml/min; intermittent 3000 ml/min

This pump is essential for bioprocessing, gene editing, and synthetic biology applications where precise, contamination-free fluid transfer is critical. Its compact design (155 x 275 x 315 mm) and moderate weight (9.4 kg) facilitate integration into laboratory workflows for cell culture media circulation, biomanufacturing processes, and molecular cloning. The 3-roller pumphead mechanism ensures consistent flow pulses, making it widely adopted in biomedical engineering and clinical diagnostics settings.

By combining reliable performance with versatile flow control across tube sizes, the Watson-Marlow 520Di supports critical laboratory and industrial processes requiring stringent flow accuracy and operational efficiency.