© Edwards Limited 2009. All rights reserved.
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Technical Data
A533-23-880 Issue C
2.8
Materials in contact with process gases
2.9
Fire Safety
The use of combustible materials has been minimised, potential ignition sources have been contained within sealed
metal enclosures and engineering controls have been used to avoid ignition or over temperature situations.
2.10
Resource Conservation
Measures have been taken in the design of the iF system to conserve the environment, as advised by ISO14001 -
Environmental Management Systems.
Packaging materials may be recycled
Lubrication for life has been incorporated into the pump design
No pump parts require cleaning for maintenance
Materials used in the manufacture of the pump may be recycled on completion of its useful life.
2.11
Default setpoints
The default setpoints are shown in Tables 7 to 9. Where there is an 'ADJ' (adjust) entry in these tables, this specifies
that the setpoints are usually not used and the default setpoint is preset so that no warning or alarm condition could
result from sensor readings. If required you can adjust these 'ADJ' setpoints for your application, so that suitable
warnings and alarms can be generated: refer to Section 5.2.
Pump, shafts and rotors
- Cast iron, steel, SG iron
Internal and external shaft-seals
FDP pump
- PTFE (polytetrafluoroethylene)
HMB pump
- PTFE and fluoroelastomer
FDP pump nitrogen pipelines
- Stainless steel
Gas System components
- Stainless steel and Viton
FDP rotor coating
- Molybdenum disulfide; xylene; dioxane;dimthyacetamide and antimony
trioxide.
Table 7 - Electrics box default setpoints
Parameter
Unit
Default setpoint values
Low alarm Low warning High warning
High alarm
FDP power consumption
kW
ADJ
0.0
7.0
8.5
HMB power consumption
kW
ADJ
0.0
N/A
N/A
