External Cooling Water System - Wartsila 31 Product Manual

9. Cooling Water System
9.3

External cooling water system

Fig 9-5
System components:
4E03
4E05
4E08
4F01
4N01
4N02
Pipe connections:
401
402
404
406
408
416
451
452
457
483
9-8
Example diagram for single main engine (DAAF301503A)
Heat recovery (evaporator)
Heater (preheating unit)
Central cooler
Suction strainer (sea water)
Preheating unit
Evaporator unit
HT-water inlet
HT-water
HT-water air vent
Water from preheater to HT-circuit
HT-water from stand-by pump
HT-water airvent from air cooler
LT-water inlet
LT-water outlet
LT-water from stand-by pump
LT-water air vent
4P03 Stand-by pump (HT)
4P04 Circulating pump (preheater)
4P05 Stand-by pump (LT)
4P09 Transfer pump
4P11 Circulating pump (sea water)
4P19 Circulating pump (evaporator)
8V - 10V
DN100
DN100
OD12
DN100
DN100
OD12
DN100
DN100
DN100
OD15
Wärtsilä 31 Product Guide - a1 - 18 October 2016
Wärtsilä 31 Product Guide
4S01 Air venting
4T04 Drain tank
4T05 Expansion tank
4V02 Temp. control valve (heat recovery)
4V08 Temp. control valve (central cooler)
4V09 Temp. control valve (charge air)
12V - 14V 16V - 20V
DN125 DN150
DN125 DN150
OD12 OD12
DN125 DN150
DN125 DN150
OD12 OD12
D125 DN150
D125 DN150
D125 DN150
OD15 OD15