Carver GVS Series, Инструкция по установке, эксплуатации и обслуживанию

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4
•
The pump has been installed but operation is
delayed pending completion of construction.
•
There are long (30 days or more) periods
between operating cycles.
•
The plant (or department) is shut down for
periods of longer than 30 days.
CAUTION
A pump, which is made of cast or ductile iron
that sits in extreme heat, high humidity, or
full or partially full water over 30 days will
rust and will mos t likely seize. If the pump
rusts and/or seizes, a complete overhaul and
repair may be necessary to refurbish the
pump.
Storage requirements vary depending on the
length of storage, the climatic environment,
and the equipment. For storage periods of
three months or longer, contact a
representative from Carver Pump Company
for specific instructions. Improper storage will
damage the equipment and will require non-
warranty restoration and/or non-warranty
product failures. Refer to Section VIII,
Service and Repair, for pump disassembly
and assembly procedures. When
disassembling the pump, replace and repair
rusted parts, as necessary.
NOTE
If the customer anticipates the
pump/equipment will be subject to an
extended period of storage after installation,
(for example, a unit used for seasonal
operation), contact a representative from
Carver Pump Company. If this is the case,
Carver will provide specific instructions for
the equipment during the extended period of
storage. In general, if a pump is to be shut
down for an extended period, the following
steps are recommended:
1. Shut down the pumping unit in
accordance with the operating
procedures outlined throughout this
manual.
2. Shut off system suction and discharge
valves.
3. Drain the unit.
4. Fill unit with mineral oil or suitable non-
corrosive protectant that is compatible
with the system.
5. Provide pump and motor with a
protective cover.
III. INSTALLATION.
Skilled personnel should install the pump in
accordance with engineering standards. Faulty
installation will result in operating troubles and
premature wear of parts.
WARNING
Lift pumping unit using a hoist or suitable
lifting device. Do NOT lift complete unit using
the driver, pump shaft, discharge piping or
driver eyebolts. Take extreme care when
handling composite materials.
The pump and driver should be easily accessed with
enough headroom to perform periodic inspection and
maintenance.
NOTE
The pump should always be submerged in
enough fluid to prevent vortices from
forming. If large vortices form, air enters the
suction and causes the impeller to become
imbalanced or causes the pump to run dry. If
one allows large vortices to form, damage
may occur to the pump and/or its parts.
The pump is generally supplied with coupling, motor,
and baseplate, and the complete set is assembled at
Carver Pump Company. After ascertaining that the
unit has suffered no damage in transit, one may install
the pumping unit. Proceed as follows:
1. Make sure the mounting surface is level.
Attach the base to the mounting surface.
Check that pump rotates freely.
CAUTION
Support all piping as to avoid undue pipe
strain or weight upon the pump. Do NOT
force piping. Do NOT use pump as an
anchorage point for the piping. Pipe strain
will cause wear and/or damage to parts.
2. Connect discharge piping. Extreme care
should be taken when connecting new piping
lines to be sure that no foreign matter such
as dirt, chips, tools, etc., is in the piping,
tank, or return piping as the debris will be
drawn into the pump and cause excessive
damage. Any debris caught in the pump
passageways will cause an imbalance in the
pumping unit.
The discharge piping should be one or two
sizes larger than the pump flange sizes,
especially where the piping is of
considerable length. Any flexible joints
installed in the piping must be equipped with
tension rods to absorb piping axial thrust.