- Flow rates from 1 microlitre/min to 18 litre/min
- Pressures up to 4 bar (60psi)
- 2650:1 speed control range across eight drive variations
- PIN - secure Process Protection: full pump configuration protected by dual operator/supervisor PIN codes to safeguard your process
- IP31 (NEMA 12) wipedown and IP66 (NEMA 4X) washdown rated drives
- Numeric keypad control of all functions
- Full industrial-standard connectivity - RS232/RS485
- Ability to scale speed provides a "drop-in" replacement for diaphragm pumps
- LoadSure tubing elements for rapid changeover and perfect fit every time
- Stroke control inputs allow drop-in replacement of chemical metering pumps
The new 620 pumps provide 50% more flow than their predecessors in a housing which is half the previous size. Choose the 620S for standard manual control, the 620U for auto analogue control or the top-of-the-range 620Du for remote analogue/digital control with key-in flow rates. Customers requiring precision dispensing with batch records should use the 620Di. Value for life - With 60% fewer roller passes than our competitors, 620 pumps deliver 150% longer tube life. Superior engineering means there's less downtime and fewer failures, and you benefit from Watson-Marlow's unique "one-minute" maintenance. Hit a problem, and next-day replacement keeps your production rolling. All backed by our industry-leading five-year warranty. | 
