Pump Startup And Operation - Goulds Pumps ITT DWT Instrucciones De Instalación, Operación Y Mantenimiento

Pump Startup And Operation

Pump Startup And Operation
PRE-START PROCEDURE
Consult the applicable manufacturer's instructions for
detailed information for the prime mover (electric motor,
engine or steam turbine), coupling, driveshaft, gear
driver. Prior to startup, check the following.
1. Confi rm that the following procedures described
in the "Installing the Drivers" sections have been
performed:
A. Wiring of Driver.
B. Driver must rotate counterclockwise (CCW)
when viewed from above.
Do not check motor rotation unless motor
WARNING
is bolted to pump and drive coupling is
removed.
Be sure to install the coupling guards
WARNING
around all exposed shafts and couplings
before start up of the pump. Failure to comply may
result in sever personnel injury or death.
C. Check alignment of pump and driver.
D. Impeller adjustment has been made.
2. For open lineshaft pump, make sure the stuffi ng box
bleed line is connected (if applicable). For enclosed
lineshaft pump, make sure the oil lubrication
piping is connected and oil reservoir fi lled with the
recommended oil. (See pages 19 and 20.)
3. For open lineshaft pump, when a static water level
exceeds 30 feet, pre-lubrication is necessary. If it
is equipped with a prelube system supplied from a
pressurized header, open the supply valve and allow
the prelube water to fl ow for 15 seconds plus 15
seconds per 100 ft of pump setting. If it is equipped
with a tank type prelube system, open the valve
between the prelube tank and the pump and allow
approximately half of the water in the tank to run
into the pump before starting the pump. The pre-
lube valve should remain open during the start up.
Column Required
Size Tank Capacity
(Nom. in.) (Gallons)
10 gal. Per 100 ft. depth
3, 4
to static water level
25 gal. Per 100 ft. depth
5, 6
to static water level
8, 10, 50 gal. Per 100 ft. depth
12, 14 to static water level
4. For oil lubricated pump, clean and fi ll the lubricator
tank with recommended oil. (See pages 19 and 20.)
Manually open the lubricator valve and allow oil
to run into the shaft enclosing tube for at least 20
minutes for each 100 ft. of setting prior to start up.
Then, adjust the lubricator for the proper drops per
minutes according to the following table:
Shaft Size
(in.)
0.75 - 1.18
1.50 - 1.68
1.94 - 2.43
2.68 and larger
On the system equipped with a solenoid operated
lubricator valve that cannot be energized
independently, it will be necessary to remove the
valve stem to allow the oil to fl ow into the tube. If
the start up is delayed or the pump has been shut
down for over 150 hours, the lubrication procedure
must be repeated just prior to actual start up.
5. Open the air release system isolation valve.
Adjusting the air release system throttling device so
that is partially open, It should not be closed or fully
open.
NOTE: Not exhausting the air or exhausting it too fast
can damage the pump.
6. All connections to driver and starting device must
match wiring diagram. Voltage, phase and frequency
on motor nameplate must agree with line current.
7. Rotate shaft manually to ensure impellers are not
binding.
8. Verify that driver bearings are properly lubricated
and check oil level in housing.
9. Inspect discharge piping connection, valves and
pressure gauges for proper operation.
PUMP STARTUP
Pre-Lub
Pipe &
1. Partially close the valve in the discharge line.
Valve Size
2. Start the pump. If any abnormal noises, jerking
1"
or vibration is noted, stop the pump immediately,
determine the cause of the abnormalities and correct
1½"
them.
1½"
3. After the pump is operating at full speed, slowly
open discharge valve. If driver overheats or there is
excessive vibration, stop the pump, determine the
causes and correct them.
4. If the air release valve is manually operated, close it.
Additional drops
Basic drops
per minute per
per minute
100 ft. setting
5 2
7 3
10 4
12 5
17