9 During installation work on the intake and discharge lines do not sub-
ject flanges to any stresses. Check the rubber elements of the pump’s
feet as to any deformation.
10 Before pumping condensable vapours the pump should be at oper-
ating temperature. If a gas ballast is present, then it should be opened.
The pump will attain its operating temperature approximately 120 min-
utes after having started the pump. During this warm-up phase, the
pump should be left separated from the process by a valve in the
intake line, for example.
11 If condensable vapours have been pumped, the pump should before
switching off be purged with an inert gas or air (depending on the spe-
cific application). This process should also be run before cleaning the
pump chamber.
12 For shutting down the pump let the pump operate idle for at least 30
minutes. Disconnect the pump from the mains power. Place desiccant
into the intake flange and into the discharge flange and blank off the
flanges with a piece of foil.
When storing the pump for a longer period of time, drain out the oil
first. Package the pump airtight in polyethylene foil.
13 Improper maintenance or repair work can have an influence on the
service life and the performance of the pump and will void any warran-
ty claims.
14 Maximum cooling water pressure: 7 bar. When exceeded, there is
the risk of leaks.
Pressures given in bar or mbar are absolute values. If exceptionally a gauge
pressure is meant, a “g” is added (bar(g)).
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