Liquid Handling Pumps from Watson Marlow Pumps Group

600 Series Mid-Flow Peristaltic Pump -- Model 620Du/LG

600 Series Mid-Flow Peristaltic Pump -- Model 620Du/LG -- View Larger Image
600 Series Mid-Flow Peristaltic Pump -- Model 620Du/LG-Image
  • Keypad entry of flow rates from 0.00053 gpm to 3.54 gpm (0.002 -13.4 liter/min)
  • Brushless DC motor, 2650:1 turndown, 0.1% set speed accuracy
  • NEMA 2 vented wipe-down enclosure suitable for dry industrial environments
  • Chemically resistant powder coated casing (exterior grade polyester)
  • PIN-secure Process Protection; full pump configuration protected by dual operator/supervisor PIN codes
  • Wire-free track-switching stops the pump if the pumphead is opened while running
  • Remote control (contact closure or 5VTTL to 24V industrial logic) or RS232 network control - PROFIBUS DP now available
  • Digital status outputs (configurable) via four relays
  • Analog speed control (0-10V or 4-20mA) with programmable inputs and high resolution outputs
  • Speed feedback from 0-1478Hz tachometer output
  • Rotor/stroke control inputs allow drop-in replacement of chemical metering pumps

Fitted as standard with the new 620LG; a specialist pumphead designed for accurate dispensing. The offset, spring-loaded tracks, almost eliminate the natural pulsation of peristaltic pumping. Dedicated to Sta-Pure/Chem-Sure, the 620LG can be used with Y-elements or continuous tubing.


Product Category
Liquid Handling Pumps
Pump Type
Dosing Pump; Injection Pump; Metering Pump; Peristaltic Pump; Positive Displacement Pump; Self-Priming Pump; Sanitary Pump
Discharge Pressure
60.0 psi (42.18 m of Water)
Liquid Flow
3.540 GPM (13.41 L/min)
Power Source
AC; 115 VAC, 230 VAC
Pump Housing Material
Industry Served
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