Flowserve WUC Worthington - Manual (Page 29)

WUC USER INSTRUCTIONS ENGLISH - 07/14
Page 29 of 52
5.2.14 Pure oil mist Lubrication
Pure oil mist system utilize a continuous oil mist flow
through the bearing housing to deliver clean oil
directly to the bearings and to maintain an outward
flow of air from the housing to prevent the ingress of
moisture and other corrosive contaminants. If the
pump will be started after a longer storage period, the
bearing housing should be first flushed and cleaned
with gasoline. It is not necessary to remove the
preservation oil.
The supplied air must be dry and clean. The
cleanness must be < 5µm.
The bearing housing requires a minimum SCFM
value as follows:
The pressure in the bearing housing shall be 0,05
bar (0,74 psi) (20 inches of water column). A
continuous lubrication should be occur during
operation and standby.
Pre Lubrication shall be performed at least 1h
before first start up.
After start up the bearing temperature
must be observed carefully. The temperature at the
bearing housing should not exceed 85°C.
Refer to the General Arrangement
drawing regarding the connections for the oil mist
lubrication.
5.2.15 Oil quality
Oil used for lubrication should only be of high quality.
Flowserve recommend that quality synthetic oil are
used where ambient temperatures fall below 4°C; the
oil used must be paraffin free to prevent plugging of
the reclassifier.
Oil with a viscosity class ISO VG100 shall be used,
refer also to lubrication table 5.2.6.
Bearing
Frame
Reclassifier at
Manifold
0N 1 x 0.18 SCFM
1N 1 x 0.30 SCFM
3N 2 x 0.30 SCFM
4N 2 x 0.30 SCFM
5N 2 x 0.30 SCFM
6N 2 x 0.30 SCFM
7N 2 x 0.45 SCFM
8N 2 x 0.30 SCFM