Edwards EDS 300

▪ Use of the EDS dry pump with materials which have auto-ignion temperatures below
the dened temperature rang
▪ Operaon such that dusts and process deposits can build up inside the pump
mechanism, blow-o-valve and exhaust. This could lead to a loss of construconal
safety and an ignion hazard
▪ Operaon such that the EDS dry pump inlet temperature falls below the dew point of a
vapour being pumped. This could lead to condensate that can collect and lead to the
risk of corrosion or an ignion hazard
▪ Pumping of, or use of the EDS dry pump in the presence of, explosive dust atmospheres
▪
Use of the EDS dry pump in a system or ammable process that causes the ingress of
metallic parcles into the pump
▪
Pumping of liquids and solid parcles
▪
Pumping pyrophoric gases
▪
Use with oxygen enriched atmospheres
▪
Operaon with insucient aachment of the pump
▪
Conversion, manipulaon, and maintenance by people not authorized by Edwards
▪
Use of accessories that are not suitable for the internal or external ATEX rang, or
which are not permied or approved by Edwards
7.3 Connecng the inlet and exhaust lines
7.3.1 Inlet lines
When you connect the EDS pump to the process system:
▪ Support process pipelines to stop the transmission of stress to pipeline joints.
▪
Use exible connecon in the pipeline from the process system to the pump to reduce
vibraon and stress in the system pipelines.
▪ Ensure the loads on the pump-inlet ange do not exceed the limits specied in Exhaust
Lines.
▪ Consider to isolate the pump from the atmosphere and from your process systems if
you have pumped or produced dangerous chemicals.
▪
On very dusty applicaons, incorporate an inlet lter in the inlet pipeline, to minimise
the ingress of dust into the pump.
1. Undo and remove the bolts which secure the blanking-plate to the pump-inlet and
remove the blanking plate. Retain the bolts.
2.
Use the trapped O-ring (ed to the pump) to connect the pump-inlet to your vacuum
system. Secure the bolts retained in Step 1.
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A41802880_C - Installaon