VACUUBRAND PC 3001 VARIO emission condenser Peltronic - Manual (Page 18)

page 18 of 120
Do not pump:
- unstable substances
- substances which react explosively under impact
(mechanical stress) without air
- substances which react explosively when being ex-
posed to elevated temperatures without air,
- substances subject to auto-ignition,
- substances which are inflammable without air
- explosive substances.
➨
The pumps are not approved for operation below
ground. Do not operate the pump below ground.
+
The pumps are not suitable for pumping dust.
Do not pump dust.
• Do not pump substances which may form deposits in-
side the pump. The pumps are not suitable for pumping
substances which may form deposits inside the pump.
Deposits and condensate in the pump may lead to in-
creased temperatures even to the point of exceeding
the maximum permitted temperatures.
• Check the inlet and outlet of the pump, if there is a dan-
ger of forming deposits inside the pump, e.g., in the
pump chambers (the pump chamber is the part between
diaphragm and head cover. See section ”Replacing dia-
phragms and valves”, pg. 99). Inspect the pump cham-
bers regularly and clean if necessary.
• Consider interactions and chemical reactions of
the pumped media. Ensure that the materials of the
pump’s wetted parts are compatible with the pumped
substances, see section ”Technical data”, pg. 27.
When changing the substances pumped, we recom-
mend purging the pump with air or inert gas prior to
changing the pumped media. Purging the pump will
pump out residues and it will reduce the possibility of
reactions of the pumped substances with each other
and with the pump’s materials.