Watson-Marlow 620RA - Page 22

Maximum speed by tube type
Pressure
(bar)
Marprene, Bioprene,
PureWeld XL, Neoprene -
up to 15.9mmbore
Pressure
(bar)
Marprene TM, Bioprene TM,
GORE® STA-PURE® Pump Tubing
LoadSure Elements 12mmbore
100 200 265
1
2
3
4
165 265
1
2
3
4
rpm rpm
Pressure
(bar)
Marprene TL, Bioprene TL,
PureWeld XL, Neoprene -
LoadSure elements
17mmbore
Pressure
(bar)
Marprene TM, Bioprene TM,
GORE® STA-PURE® Pump Tubing
LoadSure Elements 17mmbore
165 265
1
2
3
4
60 265
1
2
3
4
rpm 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 20
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