5 potential pump hazards – Watson-Marlow 700 series User Manual
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ATEX Directive: Watson-Marlow 700 series pumpheads User Manual
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5 Potential pump hazards
As part of the requirements of 94/9/EC all potential hazards, including expected
malfunctions, have been identified and subjected to a risk assessment. In order to
prevent these ignition sources becoming effective a number of changes have been
implemented. In addition to engineering modifications, the changes include addi-
tional operating instructions in order to specify correct usage in hazardous locations.
Please refer to Sections 6 - 10 for further details.
Recognised ignition sources
Surface temperatures of rollers and spindles
Tube burst and subsequent spilling of pumped fluid
Mechanical failure of rotor hub
Exothermic chemical reaction
Electrostatic discharge
Bearing failure
Spring failure