box for connection of wiring to temperature readouts.
2.2.14
Thrust Bearing
Provide thrust bearing in the [speed reduction gear][motor] to carry total
thrust load as specified in [_____].
2.2.15
Packing Gland
Provide grease-lubricated packing gland split longitudinally to facilitate
removal or renewal. Arrange it to permit inspection, repair, removal, or
replacement of packing without entering pump from below operating room
floor. Provide eye bolts and tapped holes in each half of the split gland
if halves weigh over 14 kg 30 pounds each.
2.3
LUBRICATION SYSTEM
**************************************************************************
NOTE: Select appropriate alternate paragraph. Oil
lubrication may be used for pumps with discharge
diameters up to and including 900 mm (36 in.).
Grease lubrication may be used for all size pumps.
The centralized pressure lubrication system will be
used when grease lubrication is selected.
**************************************************************************
[Oil lubrication of shaft bearings shall consist of introducing oil at the
top line shaft bearing and allowing oil to run down shaft for lubrication
of lower bearings. Oil lubrication shall consist of an oil reservoir
mounted on pump baseplate or pump driver at such height to permit gravity
flow of oil to the highest lubrication point of pump shaft. Construct
reservoir of transparent material to permit observation of quantity of oil
in reservoir. Oil reservoir shall have a minimum capacity of 1 L 1 quart.
Reservoir shall have a solenoid valve to permit oil flow whenever pump
driver is in operation. Flow rate from oil reservoir shall be adjustable
from five drips per minute to constant flow. Reservoir valve shall permit
manual flow of oil when pump driver is not operating for prelubrication of
shaft bearing. Construct oil line from oil reservoir to pump line shaft of
stainless steel tubing and support at sufficient locations to preclude
vibration of tubing when pump is operating. If pump has a bearing located
below impeller, this bearing shall be grease-lubricated. Provide grease
line with a grease fitting from this bearing to a location on top of
baseplate. Provide a grease reservoir with this bearing configuration for
containing extra grease. Shaft packing shall be lubricated by grease. Run
grease lines to a location outside of driver pedestal and provide with a
fitting for manual lubrication.]
[Support grease lines to each bearing and protect from water and mechanical
damage. Grease line protection shall consist of channels fastened to pump
with brackets, using bolts and nuts to permit removal. Grease lines
passing through pump water passage shall either be contained in a guide
vane or be protected by Schedule [80][120] pipe. This protection pipe
shall be removable if connected to shaft-enclosing tube. Prefill grease
lines before connection to bearings. Terminate grease lines above
baseplate for connection to lubricating grease pump.]
SECTION 15131A
Page 36
Previous Page
