vacuumbrand PC 8 / MD 12C, Инструкция по эксплуатации

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page 16 of 52
atmospheres (see section „
`
Important information:
Equipment marking (ATEX)“, pg. 22) .
➨
The pumps are
not suitable
to pump any of the sub-
stances listed below.
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 .
•
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 and its oil con -
dition (RC 6), if there is a danger of forming deposits
inside the pump, e.g., in the pump chambers (the pump
chamber is the part between diaphragm and head cov-
er) or in the pump unit of the rotary vane pump (RC 6).
Inspect the pump chambers of the diaphragm pump
(MD 12C / MV 10C) or the pump unit of the rotary vane
pump (RC 6) 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. 24.
When changing the substances pumped, we recom-