Watson-Marlow 521: 0-2 bar and .03 ounce per minute to 1.21 gpm, IP55 pumps fitted with LoadSure low-pressure element Pump heads or continuous tubing Pump heads.

521 close-coupled pumps offer IP55 ingress protection for light industrial environments. They offer rugged, industrial pumping, with all the Pump head features of cased drives, but at the lowest whole-life cost.

• Available with Variable Speed, Fixed Speed Simplex or Duplex, or Pneumatic drives
• Available in Industrial and Sanitary Models
• 520REL low-pressure LoadSure element Pump head features large swept volume with sprung rollers for high accuracy
• Chemically-resistant polyphenylene sulphide track and rotor, and stainless steel rollers and bearings
• Low rotational speeds greatly increase tube life and system reliability
• Clutched rotor for rapid, effortless tube loading
• Rugged, tool-unlockable guard