Vaughan Triton Series, Инструкция по установке, эксплуатации и обслуживанию

Страница: 14 / 18

Form V453 - 14 - Rev 2, ECN 4735 10/16/20
NORMAL OPERATION
A. NOISE: Vaughan pumps which operate
at either 1750 RPM or 1170 RPM are
normally quiet running (<85 dbA), and the
major source of noise is the electric motor.
Higher head pumps operating at 3510
RPM, however, will be noisier due to the
nature of the pump design. Typically, noise
level will be around 90-93 dbA in this
pump. (However, mechanical vibrations
should be minimal.)
B. VIBRATION:
Vibration, like noise,
should be minimal in the pump.
Please note that every effort has been
made at the factory to ensure that this
pump operates smoothly and without
vibration. For example, all impellers are
dynamically
balanced after impeller
machining to less than 0.1 ounce of
imbalance. Component alignment from top
to bottom is assured by the machining
methods we use. And the pump shaft is
very tightly held by ball bearings so that
there is virtually no shaft movement.
C. MOTOR OVERLOADS: A motor
overload is not part of normal operation. If
you find that the motor has tripped out on
overload, when you restart the motor, have
an electrician check operating amps. Make
sure that the motor is not pulling more than
max. allowable full load amps as indicated
by the motor nameplate. Note especially
that
repeatedly resetting the motor
overload devices and restarting the motor
when it trips out again will burn out the
motor! Please pull the pump up out of the
pit and see if something is stuck in the
pump.
D. OIL USAGE:
The pump will not use oil
when the mechanical seal is in good
condition. (Perhaps after a year of
operation, one or two ounces of oil might
be required to bring oil up to the original
level at startup.) If the pump uses large
amounts of oil or if the oil is contaminated,
mechanical seal damage may have
occurred. (Verify that the pump has not
been flooded from the top.) If the seal is
leaking, the unit should be repaired
immediately to avoid more expensive
repairs later. Call Vaughan Co. immediately
for advice. Vaughan Co. can send out a
bearing and seal system sub-assembly or a
new seal overnight, if necessary, to support
your
operations. Should repair be
necessary, please carefully follow the
instructions of the Wet-Well Overhaul
Manual. Because the Vaughan pump has a
unique bearing and seal design, it is
extremely difficult to repair the pump
properly if you do not have detailed
directions to follow.
In unusual circumstances, the oil in the
reservoir will become very slightly "milky" in
appearance.
Generally, this happens
because condensation occurs inside the
pump column or reservoir as temperature
and weather changes. If the oil is only
slightly milky, it will not present any
problems for the pump. Obviously, if too
much water gets into the oil, the oil (or the
seal) must be changed.
E. VORTEXING AND MINIMUM
SUBMERGENCE: The water level in the
pit must be kept high enough to avoid
vortexing in the pump. The rule of thumb to
avoid vortexing is to allow one foot of
submergence above the inlet for every
foot/second of inlet velocity. Velocity
depends on flow rate and inlet diameter.
The formula to find the flow velocity at the
suction of your pump is as follows:
V (ft/s) = 0.4085*GPM / diameter
2
(in)
Minimum submergence requirements can
be reduced by use of suction bells which
reduce the velocity at the inlet. Please
consult Vaughan engineering regarding
applications requiring a suction bell.
SHUTDOWN INSTRUCTIONS
A. MANUAL SHUTDOWN : In the manual
mode of operation, a Vaughan pump is
shut down by hitting the "OFF" button or