Watson-Marlow 620RA User Manual page 22

Maximum speed by tube type
Marprene, Bioprene,
PureWeld XL, Neoprene -
up to 15.9 mm bore
4
Pressure
3
(bar)
2
1
100
rpm
Marprene TL, Bioprene TL,
PureWeld XL, Neoprene -
LoadSure elements
17 mm bore
4
Pressure
3
(bar)
2
1
rpm
Tubing not suitable
Continuous
Intermittent
WARNING! Do not run dry for excessive periods. Roller and tubing
temperatures can exceed normal operating range.
Tube life will be reduced increasing the chance of premature failure.
WARNING! Do not run pumphead against a dead-end condition
(closed discharge). This can lead to excessive roller and tubing
temperatures and pressures in excess of the limits in the table above.
Tube life will be reduced increasing the chance of premature failure.
WARNING! Do not run pumpheads at speed higher than the rated
maximum speed. This can lead to excessive roller and tubing
temperatures. Tube life will be reduced, increasing the chance of
premature failure.
When two or more items of ATEX equipment are combined, the permissible operating envelope will be
determined by the narrowest range after considering all values for a given parameter.
PB0347:m-620atex-en-03
200 265
165 265
Marprene TM, Bioprene TM,
GORE® STA-PURE® Pump Tubing
LoadSure Elements 12 mm bore
4
Pressure
3
(bar)
2
1
Marprene TM, Bioprene TM,
GORE® STA-PURE® Pump Tubing
LoadSure Elements 17 mm bore
4
Pressure
3
(bar)
2
1
60
165 265
rpm
265
rpm
20