520Rec Element Loading - Watson Marlow Pumps 521CC Manual

Watson-Marlow Bredel E-Manuals
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13.4 520REC 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-
springing and occlusion settings are used. The pressure rating 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 appropriate rotor
and element, the pump must rotate counter-clockwise.
Element and rotor pressure ratings
Colour of flexible rotor cap and element connector sleeve
Grey
520REL
Pressures
up to 2 bar (30 psi)
Bore sizes
3.2mm, 6.4mm and 9.6mm
Industrial Sanitary
Marprene TL Bioprene TL
Pumpsil Pumpsil
Neoprene Sta-Pure
ChemSure ChemSure
Element connectors for industrial and sanitary use
Industrial
Check that the conical connector sleeve of the element to be fitted is the
same colour as the pumphead rotor cap
Beige
520REM
Pressures
up to 4 bar (60 psi)
Bore sizes
3.2mm and 6.4mm
Industrial Sanitary
Marprene TM Bioprene TM
ChemSure Sta-Pure
Sanitary
Page 26 of 47
Blue
520REH
Pressures
up to 7 bar (100 psi)
Bore size
3.2mm
Industrial Sanitary
Marprene TH Bioprene TH
Sta-Pure Sta-Pure
14/12/2009