Flowserve LPNV Worthington - Manual (Page 4)

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14
Page 4 of 48
1.6 Safety
1.6.1 Summary of safety markings
These User Instructions contain specific safety
markings where non-observance of an instruction
would cause hazards. The specific safety markings
are:
This symbol indicates electrical
safety instructions where non-compliance will
involve a high risk to personal safety or the loss of
life.
This symbol indicates safety instructions
where non-compliance would affect personal
safety and could result in loss of life.
This symbol indicates “hazardous and toxic
fluid” safety instructions where non-compliance
would affect personal safety and could result in loss
of life.
This symbol indicates safety
instructions where non-compliance will involve
some risk to safe operation and personal safety and
would damage the equipment or property.
This symbol indicates explosive atmosphere
zone marking according to ATEX. It is used in
safety instructions where non-compliance in the
hazardous area would cause the risk of an
explosion.
This symbol indicates is used in safety
instructions to remind not to rub non-metallic
surfaces with a dry cloth; ensure cloth is damp. It
is used where non-compliance in the hazardous
area would cause the risk of an explosion.
This sign is not a safety symbol but
indicates an important instruction in the assembly
process.
1.6.2 Personnel qualification and training
All personnel involved in the operation, installation,
inspection and maintenance of the unit must be
qualified to carry out the work involved. If the
personnel in question do not already possess the
necessary knowledge and skill, appropriate training
and instruction must be provided. If required the
operator may commission the manufacturer /
supplier to provide applicable training.
Always co-ordinate repair activity with operations and
health and safety personnel, and follow all plant
safety requirements and applicable safety and health
laws and regulations.
1.6.3 Safety action
This is a summary of conditions and actions to
help prevent injury to personnel and damage to
the environment and to equipment.
For products used in potentially explosive
atmospheres section 1.6.4 also applies.
PREVENT EXCESSIVE
EXTERNAL PIPE LOAD
Do not use pump as a support for piping. Do not
mount expansion joints, unless allowed by
Flowserve in writing, so that their force, due to
internal pressure, acts on the pump flange.
ENSURE CORRECT
LUBRICATION
(See section 5, Commissioning, startup, operation
and shutdown.)
START THE PUMP WITH OUTLET
VALVE PARTLY OPENED
(Unless otherwise instructed at a specific point in
the User Instructions.)
This is recommended to minimize the risk of
overloading and damaging the pump motor at full
or zero flow. Pumps may be started with the valve
further open only on installations where this
situation cannot occur. The pump outlet control
valve may need to be adjusted to comply with the
duty following the run-up process. (See section 5,
Commissioning start-up, operation and shutdown.)
NEVER RUN THE PUMP DRY
INLET VALVES TO BE FULLY
OPEN WHEN PUMP IS RUNNING
Running the pump at zero flow or below the
recommended minimum flow continuously will
cause damage to the seal.
DO NOT RUN THE PUMP AT
ABNORMALLY HIGH OR LOW FLOW RATES
Operating at a flow rate higher than normal or at a
flow rate with no backpressure on the pump may
overload the motor and cause cavitation. Low flow
rates may cause a reduction in pump/bearing life,
overheating of the pump, instability and
cavitation/vibration.
NEVER DO MAINTENANCE WORK
WHEN THE UNIT IS CONNECTED TO POWER