ME
IMO Tier 2
AUX
IMO Tier 2
AUX
IMO Tier 2
DE
IMO Tier 2
DE
IMO Tier 2
Wärtsilä 10V31
750
610
750
610
720
590
750
610
720
590
RPM
kW/cyl
Engine speed
Cylinder output
176.6
181.9
180.9
181.4
180.4
g/kWh
Fuel consumption at 50% load, MDF
22.1
22.1
21.3
22.1
21.2
kg/h
Clean leak fuel quantity, MDF at 100% load
4.4
4.5
4.3
4.4
4.3
kg/h
Clean leak fuel quantity, HFO at 100% load
Lubricating oil system
420
420
420
420
420
kPa
Pressure before bearings, nom. (PT 201)
40
40
40
40
40
kPa
Suction ability main pump, including pipe loss, max.
60
60
60
60
60
kPa
Priming pressure, nom. (PT 201)
35
35
35
35
35
kPa
Suction ability priming pump, including pipe loss, max.
70
70
70
70
70
°C
Temperature before bearings, nom. (TE 201)
82
82
82
82
82
°C
Temperature after engine, approx.
144
130
125
130
125
m³/h
Pump capacity (main), engine driven
120
120
120
120
120
m³/h
Pump capacity (main), stand-by
24.0 / 24.0
24.0 / 24.0
24.0 / 24.0
24.0 / 24.0
24.0 / 24.0
m³/h
Priming pump capacity, 50Hz/60Hz
3.0
3.0
3.0
3.0
3.0
m³
Oil volume, wet sump, nom.
8.2
8.2
8.0
8.2
8.0
m³
Oil volume in separate system oil tank, nom.
0.45
0.45
0.45
0.45
0.45
g/kWh
Oil consumption (100% load), approx.
2450
2450
2450
2450
2450
l/min
Crankcase ventilation flow rate at full load
0.1
0.1
0.1
0.1
0.1
kPa
Crankcase ventilation backpressure, max.
6.0...6.8
6.0...6.8
6.0...6.8
6.0...6.8
6.0...6.8
liters
Oil volume in turning device
Cooling water system
High temperature cooling water system
382 + stat-
ic
382 + stat-
ic
382 + stat-
ic
382 + stat-
ic
382 + stat-
ic
kPa
Pressure at engine, after pump, nom. (PT 401)
600
600
600
600
600
kPa
Pressure at engine, after pump, max. (PT 401)
83
83
83
83
83
°C
Temperature before cylinders, approx. (TE 401)
96
96
96
96
96
°C
HT-water out from engine, nom (TE432)
90
90
90
90
90
m³/h
Capacity of engine driven pump, nom.
210
210
210
210
210
kPa
Pressure drop over engine, total
100
100
100
100
100
kPa
Pressure drop in external system, max.
70...150
70...150
70...150
70...150
70...150
kPa
Pressure from expansion tank
0.642
0.642
0.642
0.642
0.642
m³
Water volume in engine
Low temperature cooling water system
25 ... 38
25 ... 38
25 ... 38
25 ... 38
25 ... 38
°C
Temperature before engine (TE 451)
90
90
90
90
90
m³/h
Capacity of engine driven pump, nom.
0
0
0
0
0
kPa
Pressure drop over charge air cooler
41
41
41
41
41
kPa
Pressure drop over charge air cooler (one-stage)
110
110
110
110
110
kPa
Pressure drop over charge air cooler (two-stage)
100
100
100
100
100
kPa
Pressure drop in external system, max.
Wärtsilä 31 Product Guide - a1 - 18 October 2016
3-5
3. Technical Data
Wärtsilä 31 Product Guide
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