CS USER INSTRUCTIONS ENGLISH 923CSE001 - 08/03
Page 6 of 66
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It is important that due consideration be given
to those hazards which arise from the presence of
electrical power, high-pressure, high-temperature
liquids, hot oil, toxic liquids or gases, and/or
flammable liquids or gases. Proper installation and
care of protective guards, shutdown devices, and
over-pressure protection equipment shall also be
considered an essential part of any safety program.
Also essential are special
precautionary measures to prevent the possibility of
applying power to the equipment at any time when
maintenance work is in progress. The prevention of
rotation due to reverse flow must not be overlooked.
In general, all personnel should be guided by all of
the basic rules of safety associated with the
equipment and the process.
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 5.3)
START THE PUMP WITH
DISCHARGE VALVE PART 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).
NEVER RUN THE PUMP DRY
INLET VALVES TO BE FULLY OPEN
WHEN PUMP IS RUNNING AND DURING START
UP
Starting up or 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.
UNDER NO CIRCUMSTANCES IS
THE PUMP TO BE OPERATED WITH ANY
SAFETY DEVICES RENDERED INOPERATIVE
NEVER DO MAINTENANCE WORK
WHEN THE UNIT IS CONNECTED TO POWER
HAZARDOUS LIQUIDS
When the pump is handling hazardous liquids care
must be taken to avoid exposure to the liquid by
appropriate sitting of the pump, limiting personnel
access and by operator training. Wear protective
clothing in the presence of caustic, corrosive,
volatile, flammable, or hot liquids. If the liquid is
flammable and/or explosive, strict safety
procedures must be applied. Do not allow sparking,
flames, or hot surfaces in vicinity of the equipment.
Gland packing must not be used when pumping
hazardous liquids.
DRAIN THE PUMP AND ISOLATE
PIPEWORK BEFORE DISMANTLING THE PUMP
The appropriate safety precautions should be taken
where the pumped liquids are hazardous.
FLUORO-ELASTOMERS (When fitted.)
When a pump has experienced temperatures over
250 ºC (482 ºF), partial decomposition of fluoro-
elastomers (e.g. Viton) will occur. In this condition
these are extremely dangerous and skin contact
must be avoided.
HANDLING COMPONENTS
Many precision parts have sharp corners and the
wearing of appropriate safety gloves and equipment
is required when handling these components. To lift
heavy pieces above 25 kg (55 lb) use a crane
appropriate for the mass. Consult current local
regulations.
GUARDS MUST NOT BE REMOVED WHILE
THE PUMP IS OPERATIONAL
The unit must not be operated unless the guard(s)
is bolted in place. Failure to observe this could
result in injury to operating personnel.
THERMAL SHOCK
Rapid changes in the temperature of the liquid
within the pump can cause thermal shock, which
can result in damage or breakage of components
and should be avoided.
NEVER APPLY HEAT TO REMOVE
IMPELLER
Trapped lubricant or vapour could cause an
explosion.
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