3 direction of rotation, 3 ktb – Flowserve HED Worthington User Manual
Page 30
HED/HED-DS USER INSTRUCTIONS ENGLISH 85392695 – 06/14
Page 30 of 64
Bearing
Housing
Size (*)
Bearing Designation
Oil Fill Capacity
Radial
Bearing
Bore [mm]
Thrust Bearing
D.E. Side
N.D.E. Side
litres (oz)
litres (oz)
ESB 0
40
2 x 7308 BG
0.80 (27.1)
1.50 (50.7)
ESB 1
50
2 x 7308 BG
0.80 (27.1)
1.50 (50.7)
ESB 2
60
2 x 7312 BG
1.50 (50.7)
2.75 (93.0)
ESB 34
70
2 x 7312 BG
1.50 (50.7)
2.75 (93.0)
ESB 5
80
2 x 7312 BG
1.50 (50.7)
2.75 (93.0)
ESB 6
90
2 x 7312 BG
1.50 (50.7)
2.75 (93.0)
ESB 7
100
2 x 7317 BG
3.00 (101.4)
7.00 (236.7)
ESB 8
120
2 x 7317 BG
3.00 (101.4)
7.00 (236.7)
ESB 9
140
2 x 7222 BG
5.50 (186.0)
9.00 (304.3)
5.2.2.3 KTB
Bearing
Housing
Size (*)
Rated
Speed
r.p.m.
Bearing Designation
Oil Capacity
Radial
Bearing
Bore mm
Thrust
Bearing
D.E. Side
N.D.E. Side
l/min
(gall/min)
l/min
(gall/min)
EK 1
1500
50 4
0.9 (0.2)
1.9 (0.5)
1800
1.0 (0.3)
3.0 (0.8)
3000
1.4 (0.4)
5.2 (1.4)
3600
1.8 (0.5)
6.2 (1.6)
EK 2
1500
60 5
1.0 (0.3)
4.2 (1.1)
1800
1.1 (0.3)
5.1 (1.4)
3000
1.6 (0.4)
9.4 (2.5)
3600 2.1
(0.6)
11.1
(2.9)
EK 34
1500
70 5
1.2 (0.3)
4.4 (1.2)
1800
1.4 (0.4)
5.4 (1.4)
3000
2.0 (0.5)
9.8 (2.6)
3600 2.5
(0.7)
11.5
(3.0)
EK 5
1500
80 5
1.4 (0.4)
4.6 (1.2)
1800
1.7 (0.4)
5.7 (1.5)
3000 2.4
(0.6)
10.2
(2.7)
3600 2.9
(0.8)
11.9
(3.1)
EK 6
1500
90 5
1.7 (0.5)
4.9 (1.3)
1800
2.0 (0.5)
6.0 (1.6)
3000 2.8
(0.7)
10.6
(2.8)
3600 3.4
(0.9)
12.4
(3.3)
EK 7
1500
100 5
2.0 (0.5)
5.2 (1.4)
1800
2.4 (0.6)
6.4 (1.7)
3000 3.3
(0.9)
11.1
(2.9)
3600 3.8
(1.0)
12.8
(3.4)
EK 8
1500
120 7
2.6 (0.7)
10.6 (2.8)
1800 3.1
(0.8)
14.7
(3.9)
EK 9
1500
140 9
3.5 (0.9)
22.5 (5.9)
1800 4.0
(1.1)
32.0
(8.5)
* The bearing housing size can be identified from the
identifying marks cast on the housing on the
horizontal centre line in the opposite side to the oiler
and from the thrust bearing side indicated by
nameplate.
5.2.3 Bearing housing oil limitations
Recommended Oil Temperature At Start Up
15.6 °C
60 °F
Desirable Operating Temperature
60-71 °C
140-160 °F
Oil Level Above Oil Connection Centre line
6 mm
When the starting temperature is below -10°C (14°F)
for long time it’s suggested to use synthetic oil. Other
drivers and gearboxes, if appropriate, should be
lubricated in accordance with their manuals.
In the case of product lubricated bearings
the source of product supply should
be checked against
the order. There may be requirements for an external
clean supply, particular supply pressure or the
commencement of lubrication supply before pump
start-up.
5.2.4
Lubrication schedule
5.2.4.1 Oil lubricated bearings
Normal oil change intervals are 4000 operating hours
or at least every 6 months. For pumps on hot service
or in severely damp or corrosive atmosphere, the oil
will require changing more frequently. Lubricant and
bearing temperature analysis can be useful in
optimizing lubricant change intervals.
The lubricating oil should be a high quality mineral oil
having foam inhibitors. Synthetic oils may also be
used if checks show that the rubber oil seals will not be
adversely affected.
Based on the specified operating conditions and an
ambient temperature of 43C (110°F) for ring-oiled or
splash systems, oil sump temperature below 82C
(180°F) is expected.
A continuously rising temperature, or an abrupt rise,
indicates a fault.
5.3 Direction of rotation
Ensure the pump is given the same
rotation as the pump direction arrow fit on bearing
housing. In any case the direction of rotation must be
checked with the pump disconnected.
To avoid dry running the pump must either be filled
with liquid or have the flexible coupling disconnected
before driver is switched on.
If maintenance work has been carried
out to the site's electricity supply, the direction of
rotation should be re-checked as above in case the
supply phasing has been altered.