Recommended Precautions; General; Location; Connections - ITT MARLOW Serie Manual De Instalación, Operación, Mantenimiento

Congratulations
You are now the owner of an ITT pump. This pump was
carefully inspected and subjected to fi nal tests before
releasing for shipment. In order to assure maximum
performance please follow the simple instructions in this
manual.

RECOMMENDED PRECAUTIONS

1. Avoid system pressures that may exceed one and a
half times the operating point selected from the pump
performance curve.
2. Should the fl uid temperature rise more than 50º F,
above ambient, expansion joints must be installed on
both the suction and discharge ports to relieve any
stress on the pump casing.
3. All electrical wiring of the pump installation must be
done by a licensed electrician who will observe all
national and local electrical codes. All motors require
a magnetic starter with current overload protection.
4. No modifi cations, additions or deletions should be
made to the pump, without prior approval of the
factory.
5. In systems where shock wave pressures may be gener-
ated, protective devices such as check valves/gate
valves, etc., must be installed on the discharge line to
prevent shock pressures from entering the pump cas-
ing.
6. In systems containing discharge check valves, gate
valves, etc., the pump will not prime against a closed
valve. Check the discharge valves making sure they
are open before attempting to prime pump. If there
is a possibility of air being entrapped in the pump
casing, install an automatic venting device to bleed
off the air.
7. This pump is designed primarily for water use. Before
pumping other liquids, read carefully the CAUTION
below.
8. Overheated pumps are dangerous. Burns or explo-
sion could occur due to steam pressure. Operating
pumps with suction and discharge closed is one cause
of severe overheating. If overheating of pump occurs:
1. Stop pump immediately, 2. Allow pump to cool, 3.
Slowly and cautiously vent pump.
9. Drain casing completely when servicing pump and
handling volatile or harmful liquids.
10. Do not use in a combustible atmosphere.
11. Make daily checks of the tightness of suction and
discharge pipe, drain, fi lter plug and pump gaskets.
Operation should not proceed until all of the above
items have been checked and are tight.
12. After servicing the pump, always install the coupling
guards , belt guards and any other safety devices as
originally found prior to disassembly.
The performance of ITT pumps are based
CAUTION
upon clear, cold, fresh water with suction
conditions as shown on the performance curve. If used to
pump other liquids, pump performance may differ from
rated performance based on the different specifi c gravity,
temperature, viscosity, etc. of the liquid being pumped.
A standard pump may not be safe for pumping all types
of liquids, such as toxic, volatile or chemical liquids, or
liquids under extreme temperatures or pressures. Please
consult your ITT catalogs as well as local codes and
general references to determine the appropriate pumps
for your particular application. Since it is impossible for
us to anticipate every application of an ITT pump, if you
plan to use the pump for a non-water application, consult
ITT beforehand to determine whether such application
may be proper or safe under the circumstances. Failure to
do so could result in property damage or personal injury.
OPERATING INSTRUCTIONS
SELF-PRIMING SOLIDS HANDLING PUMPS
MOTOR DRIVEN: LONG COUPLED
TYPE: EL/EB "TRASH HOG II"

GENERAL

Our shipping container has been specifi cally designed
to prevent transit damage. However, any indications of
damage or shortage should be carefully noted on the de-
livery ticket and a claim fi led promptly with the carrier.

LOCATION

By placing your ITT pump on a fi rm, level foundation,
you reduce harmful vibrations and unnecessary noise.
Your ITT pump is self-priming and may be located above
the source of liquid supply. Best pump operation is
obtained by locating the pump as close as possible to the
liquid being handled. Keep in mind a pump can push
liquid more effectively than it can pull or draw liquid.
The actual priming ability of a pump depends upon many
factors such as the size and layout of the piping, the type
of liquid and its temperature, the specifi c pump selected
and its speed of operation. Additional priming infor-
mation is given in the ITT Sales Catalog. Provide the
necessary space around the pump for future inspection
and servicing of the unit.

CONNECTIONS

Connections at the easily accessible suction and discharge
ports can be made with either hose or pipe. The use of
strongly reinforced suction hose will prevent collapsing
of the hose during operation. New hose washers should
be used at the couplings to prevent trouble-causing leaks.
Pipe joint compound that will not dissolve in the liquid
being pumped should be used on all pipe joints. All hose
or pipe should be independently supported to eliminate
excessive strain on the pump.

ROTATION

Your pump is specifi cally designed to rotate in a coun-
terclockwise direction when viewing the motor from the
pump end. Three phase motors can rotate in either direc-
tion. Interchanging any two leads of a three phase motor
will reverse the rotation. Check your rotation.

SUCTION PIPING

1. Suction piping should be as short as possible using
the fewest number of elbows and fi ttings possible to
reduce friction loss and avoid priming problems.
2. The designer of the piping system must be sure
that the available NPSH of the system exceeds the
3