Liquid Handling Pumps from Watson Marlow Pumps Group

620L NEMA 2 (IP31) Pump -- Model 620Du/L

620L NEMA 2 (IP31) Pump -- Model 620Du/L -- View Larger Image
620L NEMA 2 (IP31) Pump -- Model 620Du/L-Image
  • Keypad entry of flow rates from 0.00053 gpm to 3.28 gpm (0.002 -12.4 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 620L; a specialist pumphead designed for accurate dispensing. The offset, spring-loaded tracks, almost eliminate the natural pulsation of peristaltic pumping. 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
30.0 psi (21.09 m of Water)
Liquid Flow
3.280 GPM (12.42 L/min)
Power Source
AC; 115 VAC, 230 VAC

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Pump Housing Material
Industry Served