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2 Safety
Th e manufacturer does not accept liability for
damage resulting from non-observance of the overall
documentation.
2.1 Intended use
•
Observe all provisions included in the operating
instructions.
•
Observe all safety instructions.
•
Comply with inspection and maintenance intervals.
•
Use the aggregate exclusively for delivery of the
permissible media to be pumped (→ General technical
data, page 28).
•
Operate the aggregate with permissible operating liquid
only (→ General technical data, page 28).
•
Observe the operating limits (→ Operating limits, page
28).
•
Prevent dry running:
− Th e sealing rings of the mechanical seals will be
damaged within only few seconds.
− Ensure that the aggregate is only operated with
suffi cient operating liquid, never without operating
liquid.
•
Prevent cavitation:
− Install a vacuum check valve.
− Comply with the temperature limits of the operating
liquid and the medium to be pumped.
− Observe the limit values for inlet pressure and
pressure diff erence.
− Do not operate the pump when the fi tting in the
suction pipe is closed.
•
Prevent overheating:
− Do not operate the aggregate when fi ttings are closed.
•
Prevent motor damage:
− Observe the maximum fl ow rate for delivery of
liquids.
− Observe the switching frequency of the aggregate.
− Th e motor protection switch must not be set to a
value above nominal current.
•
Any use other than the intended use must be agreed
with the manufacturer.
2.2 Potential misuse
•
Observe the operating limits of the aggregate
concerning temperature, pressure, speed, density and
viscosity (→ Operating limits, page 28).
•
Th e higher the density of the operating liquid, the
higher the motor power consumption. Observe the
permissible density to protect the aggregate against
overload.
•
When delivering solid laden liquids, observe the solid
content limit values (→ General technical data, page 28).
•
Do not combine multiple limit values (→ Operating
limits, page 28).
•
Prevent sudden pressure changes of the gas to be
extracted.
•
Prevent sudden temperature changes of the gas to be
extracted or operating liquid.
•
Do not use in rooms where explosive gases may
be present unless the aggregate has been expressly
intended for such purpose.
•
Do not extract, deliver or compact explosive,
infl ammable, aggressive or toxic media unless the
aggregates have been expressly intended for such
purpose.
•
Unauthorized opening of the aggregate results in the
forfeiture of any and all claims for defects.
2.3 General safety instructions
Th e following provisions must be observed prior to
executing any works.
2.3.1 Product safety
Th e pump/aggregate has been designed in accordance with
state-of-the-art technology and the generally acknowledged
rules on safety. Yet, operation of this pump/aggregate may
present a threat to the life or physical health of the user
or third parties and impair the pump/aggregate and other
property.
•
Only operate the pump/aggregate in a technically
fl awless condition and in accordance with the
provisions, safety precautions and warnings included in
these operating instructions.
•
Keep these operating instructions as well as all supplied
documents complete and legible and ensure that they
can be accessed by staff at all times.
•
Refrain from any operating methods which may put
staff or uninvolved third parties at risk.
•
In case of defects having safety implications: shut down
the aggregate immediately and consult the person in
charge to rectify the defect.
•
In addition to the overall documentation, all legal or
other safety and accident prevention regulations as
well as all applicable standards and guidelines of the
respective country of operation must be observed.
7
255548 Rev.1
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