Cooling system

  • Rubber sleeve Heat exchanger Bowman 3421 68 / 90 / end cover

    Rubber sleeve Heat exchanger Bowman 3421 68 / 90 / end cover

    Sale! Original price was: €134,95.Current price is: €109,95. Same day shipping    Add to cart
  • Impeller pump Volvo Penta D12, D12C, D12D Cooling water pump

    Impeller pump Volvo Penta D12, D12C, D12D Cooling water pump

    €1.889,95 Same day shipping    Add to cart
  • Impeller pump DT43, DT44 Vetus STM8922 10-24630-04

    Impeller pump DT43, DT44 Vetus STM8922 10-24630-04

    Sale! Original price was: €479,95.Current price is: €399,95. Same day shipping    Add to cart
  • Impeller 95mm high 63mm deep 25mm shaft diameter

    Impeller 95mm high 63mm deep 25mm shaft diameter

    Sale! Original price was: €89,95.Current price is: €75,95. Same day shipping    Add to cart
  • Martec closed circuit cooling system Yanmar 3GM Heat exchanger converting kit

    Martec closed circuit cooling system Yanmar 3GM Heat exchanger converting kit

    Sale! Original price was: €1.219,95.Current price is: €1.009,95. 3-5 working days    Add to cart
  • Flexible cooling water hose 48 mm to 55 mm Length: 1.00m (Tubano)

    Flexible cooling water hose 48 mm to 55 mm Length: 1.00m (Tubano)

    Sale! Original price was: €149,95.Current price is: €124,95. Same day shipping    Add to cart
  • Coolant hose (cold) 10 mm transparent PVC with steel reinforcement

    Coolant hose (cold) 10 mm transparent PVC with steel reinforcement

    Sale! Original price was: €3,49.Current price is: €2,89. Same day shipping    Add to cart
  • Automatic low bilge pump 24V 4160 L/h - Low installation height

    Automatic low bilge pump 24V 4160 L/h – Low installation height

    Sale! Original price was: €79,95.Current price is: €67,95. Same day shipping    Add to cart
  • Volvo Penta Heat Exchanger Seals Rubber 840741, 2001, 2002, 2003

    Volvo Penta Heat Exchanger Seals Rubber 840741, 2001, 2002, 2003

    Sale! Original price was: €39,95.Current price is: €29,95. Same day shipping    Add to cart
  • 950-42

    Martec Hose Clamp Stainless Steel 26-38 mm

    Sale! Original price was: €4,95.Current price is: €3,99. 3-5 working days    Add to cart
  • Lip seal 5/8x1.1/8x1/4 impeller pump

    Lip seal 5/8×1.1/8×1/4 impeller pump

    Sale! Original price was: €9,95.Current price is: €8,95. Next day shipping    Add to cart
  • Volvo Penta exhaust elbow gasket - 859834

    Volvo Penta exhaust elbow gasket – 859834

    Sale! Original price was: €12,95.Current price is: €9,95. Same day shipping    Add to cart
  • Bukh seal water pump DV10/20 561B0127

    Bukh seal water pump DV10/20 561B0127

    Sale! Original price was: €17,95.Current price is: €14,95. 3-5 working days    Add to cart
  • Seal 15x28x7 Impeller pump Viton

    Seal 15x28x7 Impeller pump Viton

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Stainless steel exhaust spring bellows 2" (60.30 mm) with welding ends

    Stainless steel exhaust spring bellows 2″ (60.30 mm) with welding ends

    Sale! Original price was: €114,95.Current price is: €94,95. Same day shipping    Add to cart
  • Stainless steel exhaust spring bellows 4" with welding ends (114.30 mm)

    Stainless steel exhaust spring bellows 4″ with welding ends (114.30 mm)

    Sale! Original price was: €189,95.Current price is: €159,95. Same day shipping    Add to cart
  • Sediment 20mic XR2/XR3/UV700 Main Image

    Sediment 20mic XR2/XR3/UV700

    Sale! Original price was: €16,95.Current price is: €14,95. Same day shipping    Add to cart
  • Impeller pump Nanni 4,220 HE, 5,280 HE, 6,280 HE ST274

    Impeller pump Nanni 4,220 HE, 5,280 HE, 6,280 HE ST274

    Sale! Original price was: €699,95.Current price is: €589,95. Out of stock    Read more
  • Exhaust injection elbow Farymann R30, P30, S30

    Exhaust injection elbow Farymann R30, P30, S30

    €198,95 Out of stock    Read more
  • Hose connection pipe BRASS 25 mm

    Hose connection pipe BRASS 25 mm

    Sale! Original price was: €4,95.Current price is: €3,95. 3-5 working days    Add to cart
  • Ball valve 3 way L-bore LIGHT 3/4

    Ball valve 3 way L-bore LIGHT 3/4

    Sale! Original price was: €49,95.Current price is: €41,95. 3-5 working days    Add to cart
  • Ball valve female/male thread 1/4

    Ball valve female/male thread 1/4

    Sale! Original price was: €6,95.Current price is: €5,95. Same day shipping    Add to cart
  • Ball valve female/male thread 3/4

    Ball valve female/male thread 3/4

    Sale! Original price was: €10,95.Current price is: €8,95. Same day shipping    Add to cart
  • Aerator 1/2 x 11/4 x 11/4 Impeller pump Brass

    Aerator 1/2 x 11/4 x 11/4 Impeller pump Brass

    Sale! Original price was: €72,95.Current price is: €59,95. Same day shipping    Add to cart

The various types of cooling water systems

There are three types of cooling systems:

  1. Direct cooling: a cooling water system whereby water is pumped into the engine block by a impeller pump.
  2. Indirect cooling: a separate cooling water system (also called intercooling or heat exchanger system) in which there is coolant in the engine and cooling water is pumped through a heat exchanger by means of an impeller pump.
  3. Indirect keel cooling : a keel cooling system, in which cooling pipes with coolant run under the boat. With the latter system, a wet exhaust is not possible unless you have installed an additional impeller pump or electric pump.

Dry or wet exhaust?

Choose a wet exhaust. With a wet exhaust, the noise is muffled by the water. You can also use a rubber exhaust hose because of the lower temperature. <read more>