Operating Instructions
10/2010
1096.0799 | VU / VH Series
7
2 Safety
The manufacturer does not accept liability for damage
resulting from non-observance of the overall documenta-
tion.
2.1 Intended
use
•
Observe all provisions included in the operating instruc-
tions.
•
Observe all safety instructions.
•
Comply with inspection and maintenance intervals.
•
Use the aggregate exclusively for delivery of the permissi-
ble media to be pumped
(
General technical data, page 39).
•
Operate the pump/aggregate with permissible operating
liquid only (
General technical data, page 39).
•
Prevent dry running:
The sealing rings of the mechanical seal will be dam-
aged within only few seconds.
Ensure that the pump/aggregate is only operated with
sufficient operating liquid, never without operating
liquid.
• Prevent
cavitation:
Install a vacuum check valve.
Comply with the temperature limits of the operating liq-
uid and the medium to be pumped.
Observe the limit values for inlet pressure and pres-
sure difference.
Do not operate the pump when the fitting in the suction
pipe is closed.
• Prevent
overheating:
Do not operate the pump/aggregate when fittings are
closed.
• Prevent
motor
damage:
Observe the maximum flow rate for delivery of liquids.
Observe the switching frequency of the aggregate.
The 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 Possible
misuse
•
Observe the operating limits of the pump/aggregate con-
cerning temperature, pressure, speed, density and viscosity
(
Operating limits, page 36).
•
The 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 con-
tent limit values (
General technical data, page 39).
•
Do not combine multiple limit values
(
Operating limit values, page 36).
•
Prevent sudden pressure changes of the gas to be ex-
tracted.
•
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 pump/aggregate has been expressly intended
for such purpose.
•
Do not extract, deliver or compact explosive, inflammable,
aggressive or toxic media unless the aggregates have been
expressly intended for such purpose.
•
Unauthorized opening of the pump/aggregate results in the
forfeiture of any and all claims for defects.
2.3 General safety instructions
The following provisions must be observed prior to execut-
ing any works.
2.3.1 Product
safety
The 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 flawless
condition and in accordance with the provisions, safety pre-
cautions and warnings included in these operating instruc-
tions.
•
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 pump/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 coun-
try of operation must be observed.
2.3.2
Obligations of the operator
2.3.2.1 Safety-conscious
working
•
Only operate the pump/aggregate in a technically flawless
condition and in accordance with the provisions, safety pre-
cautions and warnings included in these operating instruc-
tions.
•
Ensure and verify compliance with:
intended
use
legal or other safety and accident prevention regula-
tions
safety regulations applying to handling hazardous sub-
stances
applicable standards and guidelines of the respective
country of operation
•
Provide for protective equipment.
2.3.2.2 Staff
qualification
•
Ensure that staff involved in pump/aggregate operation has
read and understood these operating instructions and all
applicable documents, particularly all safety, maintenance
and servicing information, prior to starting work.
•
Define clear roles and responsibilities and arrange for staff
monitoring.
•
All works must only be carried out by technically qualified
staff:
assembly, servicing, maintenance works
works on electrical equipment
•
Staff undergoing training must only work on the
pump/aggregate under the supervision of technically quali-
fied staff.
