Safety
2Safety
The manufacturer does not accept any liability for damage
resulting from disregard of the entire documentation.
2.1 Intended use
• Only use the pump for pumping the agreed pumped media
(→ order data sheet).
• Adhere to the operating limits and size-dependent mini-
mum flow rate.
• Avoid dry running:
Initial damage, such as destruction of the mechanical seal
and plastic parts, will occur within only a few seconds.
– Make sure the pump is only operated with, and never
without, a pumped medium.
• Avoid cavitation:
– Fully open the suction-side armature and do not use it
to adjust the flow rate.
– Do not open the pressure-side fitting beyond the
agreed operating point.
• Avoid overheating:
– Do not operate the pump while the pressure-side fitting
is closed.
– Observe the minimum flow rate (→ order data sheet).
• Avoid damage to the motor:
– Do not open the pressure-side fitting beyond the
agreed operating point.
– Note the maximum permissible number of times the
motor can be switched on per hour (→ manufacturer’s
specifications).
• Consult the manufacturer about any other use.
• Pumps delivered without a motor must be assembled into
apumpunitaccordingtotheprovisionsofECMachine
Directive 2006/42/EC.
Prevention of likely misuse (examples)
• Note the operating limits of the pump with regard to temper-
ature, pressure, flow rate and motor speed (→ order data
sheet).
• The power consumed by the pump increases with increas-
ing density of the pumped liquid. To avoid overloading the
pump, coupling or motor, stay within the agreed density
(→ order data sheet).
Lower densities are allowed. Adapt the auxiliary systems
accordingly.
• When pumping liquids containing solids, ensure the limits
for the proportion of solids and the grain size are main-
tained (→ order data sheet, technical description).
• When using auxiliary systems, ensure there is a continuous
supply of the appropriate operating medium.
• Pumps used with water as the pumped liquid must not be
used for foodstuffs or drinking water. Use of the pump for
foodstuffs or drinking water must be specified in the order
data sheet.
• Only select the setup type according to this operating man-
ual. For example, the following are not allowed:
– Hanging base plate pumps in the pipe
– Overhead installation
– Installation in the immediate vicinity of extreme heat or
cold sources
– Installation too close to the wall
2.2 General safety instructions
Observe the following regulations before carrying out any
work.
2.2.1 Product safety
The pump has been constructed according to the latest tech-
nology and recognized technical safety rules. Nevertheless,
operation of the pump can still put the life and health of the
user or third parties at risk or damage the pump or other prop-
erty.
• Only operate the pump if it is in perfect technical condition
and only use it as intended, staying aware of safety and
risks, and in adherence to the instructions in this manual.
• Keep this manual and all other applicable documents com-
plete, legible and accessible to personnel at all times.
• Refrain from any procedures and actions that would pose
a risk to personnel or third parties.
• In the event of any safety-relevant malfunctions, shut down
the pump immediately and have the malfunction corrected
by appropriate personnel.
• In addition to the entire documentation for the product,
comply with statutory or other safety and accident-preven-
tion regulations and the applicable standards and guide-
lines in the country where the pump is operated.
161-295/E BA-2021.04 en-US NT series 7
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