ME
SCR
mode
ME
SCR
mode
AE/DE
SCR
mode
AE/DE
SCR
mode
ME
Tier 2
mode
ME
Tier 2
mode
AE/DE
Tier 2
mode
AE/DE
Tier 2
mode
Wärtsilä 9L20
200
200
200
185
200
200
200
185
kW
Cylinder output
1000
1000
1000
900
1000
1000
1000
900
RPM
Engine speed
200
195
200
200
200
195
200
200
g/kWh
Fuel consumption at 50% load
7.3
7.3
7.3
6.8
7.3
7.3
7.3
6.8
kg/h
Clean leak fuel quantity, MDF at 100% load
1.5
1.5
1.5
1.4
1.5
1.5
1.5
1.4
kg/h
Clean leak fuel quantity, HFO at 100% load
Lubricating oil system
450
450
450
450
450
450
450
450
kPa
Pressure before bearings, nom. (PT201)
20
20
20
20
20
20
20
20
kPa
Suction ability main pump, including pipe loss,
max.
80
80
80
80
80
80
80
80
kPa
Priming pressure, nom. (PT201)
20
20
20
20
20
20
20
20
kPa
Suction ability priming pump, including pipe
loss, max.
66
66
66
66
66
66
66
66
°C
Temperature before bearings, nom. (TE201)
78
78
78
78
78
78
78
78
°C
Temperature after engine, approx.
48
64
48
43
48
64
48
43
m³/h
Pump capacity (main), engine driven
34
34
34
34
34
34
34
34
m³/h
Pump capacity (main), stand-by
8.6 / 10.4
8.6 / 10.5
8.6 / 10.4
8.6 / 10.4
8.6 / 10.4
8.6 / 10.5
8.6 / 10.4
8.6 / 10.4
m³/h
Priming pump capacity, 50Hz/60Hz
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
m³
Oil volume, wet sump, nom.
2.4
2.4
2.4
2.2
2.4
2.4
2.4
2.2
m³
Oil volume in separate system oil tank
25
25
25
25
25
25
25
25
mi-
crons
Filter fineness, nom.
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
g/kWh
Oil consumption at 100% load, max.
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
kPa
Crankcase ventilation backpressure, max.
1.4...2.2
1.4...2.2
1.4...2.2
1.4...2.2
1.4...2.2
1.4...2.2
1.4...2.2
1.4...2.2
liters
Oil volume in speed governor
Cooling water system
High temperature cooling water system
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
kPa
Pressure at engine, after pump, nom. (PT401)
500
350
500
500
500
350
500
500
kPa
Pressure at engine, after pump, max. (PT401)
83
83
83
83
83
83
83
83
°C
Temperature before cylinder, approx. (TE401)
91
91
91
91
91
91
91
91
°C
Temperature after engine, nom.
45
45
45
44
45
45
45
44
m³/h
Capacity of engine driven pump, nom.
90
90
90
90
90
90
90
90
kPa
Pressure drop over engine, total
120
120
120
120
120
120
120
120
kPa
Pressure drop in external system, max.
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
m³
Water volume in engine
70...150
70...150
70...150
70...150
70...150
70...150
70...150
70...150
kPa
Pressure from expansion tank
Low temperature cooling water system
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
200 + stat-
ic
kPa
Pressure at engine, after pump, nom. (PT451)
500
350
500
500
500
350
500
500
kPa
Pressure at engine, after pump, max. (PT451)
25...38
25...38
25...38
25...38
25...38
25...38
25...38
25...38
°C
Temperature before engine, min...max
54
54
54
50
54
54
54
50
m³/h
Capacity of engine driven pump, nom.
Wärtsilä 20 Product Guide - a13 - 6 September 2016
3-11
3. Technical Data
Wärtsilä 20 Product Guide
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