Safety Information
15
300314330_002_C7 - 05/2021 - © Leybold
10
In the case of wet processes we recommend the installation of
liquid
separators,
upstream and downstream of the pump so as to avoid
the influx of liquid into the pump.
11
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.
12
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 30 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.
13
With the pump warm from operation do not clean it from the outside
with water or suddenly supply very cold cooling water. There is the risk
of a rotor crash due to shock cooling.
14
If condensable vapours have been pumped, the pump should before
switching off be purged for approx. 15 min with an inert gas or air
(depending on the specific application). This process should also be
run before cleaning the pump chamber.
15
Improper decommissioning of the pump may damage it. For this rea-
son, follow the instructions given in Sections 4.5 and 4.6 of these
Operating Instructions.
16
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.
17
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)).
