29.4 520RE Element loading

520RE tubing element pumpheads are factory-set to accept Watson-Marlow 2.4mm- wall tubing elements. Elements fitted with either quick-release industrial connectors or Tri-clamp sanitary connectors may be used; however, it is vital to match the pressure rating of the element with the pressure rating of the pumphead so that the correct roller-spring rate and occlusion settings are used. The pressure rat- ing of the pumphead appears on the flexible rotor cap in the centre of the rotor. The pressure rating of the element appears on the connector sleeve.

Note that the rotor cap and the element connector sleeve are colour-coded.

Note: To achieve 4 bar and 7 bar pressures using a 520RE pump and the appropri- ate rotor and element, the pump must rotate counter-clockwise.

Element and rotor pressure ratings

Colour of flexible rotor cap and element connector sleeve

Grey

Beige

Blue

 

 

 

520REL

Pressures

up to 2 bar (30 psi)

Bore sizes

3.2mm, 6.4mm and

9.6mm

520REM

520REH

Pressures

Pressures

up to 4 bar (60 psi)

up to 7 bar (100 psi)

Bore sizes

Bore size

3.2mm and 6.4mm

3.2mm

Industrial

Sanitary

 

 

 

 

Marprene

Bioprene

Industrial

Sanitary

Industrial

Sanitary

TL

TL

Marprene

Bioprene

Marprene

Bioprene

Pumpsil

Pumpsil

TM

TM

TH

TH

Neoprene

Sta-Pure

Chem-Sure

Sta-Pure

Sta-Pure

Sta-Pure

Chem-Sure Chem-Sure

 

 

 

 

Element connectors for industrial and sanitary use

 

Industrial

 

Sanitary

 

 

Watson-Marlow 520DuN IP66/NEMA 4X User Manual

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Watson & Sons 520DUN 29.4 520RE Element loading, 520REL Pressures Up to 2 bar 30 psi, 2mm and 6.4mm Industrial Sanitary

520DUN specifications

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