Goulds Pumps ANSI FAMILY IOM (ATEX Compliant) - Manual (Page 51)

Table 5
Lubricating Oil Requirements
Pumpage
temperature
below 350°F (177°C)
Pumpage
temperature
above 350°F (177°C)
ISO Grade VG 68 VG 100
Approx. SSU at
100°F (38°C)
300 470
DIN 51517 C68 C100
Kinem. viscosity at
100°F (40°C)
mm 2 /sec
68 100
Some acceptable lubricants are:
Chevron GTS Oil 68
Exxon Teresstic 68 or NUTO H68
Mobil Mobil DTE 26 300 SSU
@ 100°F (38°C)
Philips Mangus Oil 315
Shell Tellus Oil 68
Sunoco Sunvis 968
Royal Purple SYNFILM ISO VG 68
Synthetic Lube
GREASE LUBRICATED BEARINGS
Grease lubricated bearings are pre-lubricated at
the factory. Most pumps have Sunoco 2EP grease.
High temperature units (pumpage temperature greater
than 350° F) use Mobil SCH32. Regrease bearings
every 2000 operating hours or 3 months.
Regrease Procedure:
NOTE: When regreasing, there is danger of
impurities entering the bearing housing. The
grease container, the greasing device, and
fittings must be clean.
1. Wipe dirt from grease fittings.
2. Remove 2 grease relief plugs (113) from bottom
of frame.
3. Fill both grease cavities through fittings with
recommended grease until fresh grease comes
out of the relief holes. Reinstall grease relief
plugs (113).
4. Ensure frame seals are seated in bearing housing
and, if not, press in place with drains located at
the bottom.
NOTE: The bearing temperature usually rises
after regreasing due to an excess supply of
grease. Temperatures will return to normal
after pump has run and purged the excess
from the bearings, usually two to four hours.
For most operating conditions a lithium based mineral oil
grease of NLGI consistency No. 2 is recommended.
This grease is acceptable for bearing temperatures of
5°F to 230°F (-15°C to 110°C). Bearing temperatures
are generally about 20°F (18°C) higher than bearing
housing outer surface temperature.
Table 6
Lubricating Grease
Requirements
Pumpage
temperature
below 350°F (177°C)
Pumpage
temperature
above 350°F (177°C)
NGLI consistency 2 3
Mobil Mobilux EP2 SCH32
Exxon Unirex N2 Unirex N3
Sunoco Mutipurpose 2EP
SKF LGMT 2 LGMT 3
$
!
CAUTION
Never mix greases of different consistency
(NGLI 1 or 3 with NGLI 2) or different thickener.
For example never mix a lithium base grease
with a polyurea base grease.
Pumpage temperatures above 350°F (177°C) should
be lubricated by a high temperature grease. Mineral
oil greases should have oxidation stabilizers and a
consistency of NGLI 3.
NOTE: If it is necessary to change grease type
or consistency, the bearings must be removed
and the old grease removed.
ANSIFAM IOM - 5/08
49
5
Fig. 35