SKF P203 - Usable Reservoir Volume; Usable Reservoir Volume for Reservoirs Without a Follower Plate; Usable Reservoir Volume for Reservoirs with a Follower Plate; Usable Reservoir Volume for Reservoirs with Double-Lip Follower Plate

30
4.9 Usable reservoir volume
NOTE
The usable reservoir volume in the reservoir design without follower plate is strongly dependent on the consistency
(NLGI Grade) of the lubricant used and
the ambient temperature. With high consistency and a low working temperature,
more lubricant typically adheres to the inner surfaces of the reservoir and the pump, leaving less lubricant available for
feeding.
Table
17
4.9.1
Usable reservoir volume for reservoirs without a follower plate
Reservoir size in liters and
[gal.]
2
[0.53]
4
[1.06]
8
[2.11]
10
[2.90]
15
[3.96]
Lubricants with relatively
low consistency
1), 2)
1.6 - 2.0
[0.42 - 0.53]
3.35 - 3.85
[0.88 - 1.01]
6.65 - 7.15
[1.76 - 1.88]
8.78 - 9.28
[2.32 - 2.45]
14.35 - 14.90
[3.79 - 3.93]
Lubricants with relatively
high consistency
3)
1.8 - 2.0
[0.47 - 0.53]
3.65 - 4.15
[0.96 - 1.10]
7.00 - 7.50
[1.84 - 1.98]
9.13 - 9.63
[2.41 - 2.54]
14.75 - 15.25
[3.90 - 4.03]
Table
18
4.9.2
Usable reservoir volume for reservoirs with a follower plate
Reservoir size in liters and [gal.]
4
[1.06]
8
[2.11]
10
[2.90]
15
[3.96]
Usable reservoir volume
3.0
[0.66]
6.4
[1.41]
11.5
[2.53]
15.4
[3.39]
Table
19
4.9.3
Usable reservoir volume for reservoirs with double-lip follower plate
Reservoir size in liters and [gal.]
4
[1.06]
8
[2.11]
15
[2.90]
20
[4.40]
25
[5.50]
Usable reservoir volume
1.9
[0.42]
5.4
[1.19]
13.9
[3.06]
20.1
[4.42]
25.1
[5.52]
1)
Consistencies of NLGI 000 lubricants at + 60 °C [140 °F] up to consistencies of NLGI 1.5 lubricants at + 20 °C [68 °F].
2)
Consistencies of NLGI 2 lubricants at + 20 °C [68 °F] up to the maximum permissible lubricant consistency.
3)
When using lubricants with relatively low consistency in pumps subjected to strong vibrations or tilting motions (e.g.,
heavy equipment for construction or agriculture), maintain a clearance of about 15 mm [0.59 in.] below the -MAX- mark on
the reservoir. This stops lubricant from entering the reservoir bleed screw. In the case of very strong vibrations or large
tilting motions, this value must be increased, and can be reduced in the case of lesser vibrations. Changing the filling
height by 10 mm [0.4 in.] equates to a change in volume of approx. 0.34 liters [0.09 gal.].