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Hoses fall into the category, does what it should and we hardly care about it. Hoses last a long time if the right type of hose for the right purpose has been bought, but a hose also has a certain lifespan and if it has to be replaced, it is not always easy to find the right hose. hoses can be divided into two groups, because a liquid or gases pass through them. To start with the latter you have to think of gas for cooking or heating and hoses for the hot air heating. In addition to those hoses, you also have hoses to, for example, extract a blast of gases from the batteries or hoses to ventilate the engine room.

Exhaust hose.

The exhaust hose that discharges the exhaust gases and the cooling water is a rubber hose because it can withstand higher temperatures and a rubber hose has a low permeability. The exhaust hose is a hose that must be able to withstand the heat of the combustion gases and this hose must also not allow toxic combustion gases to enter the boat. When starting the engine, cooling water does not immediately come along and the hose must therefore also be able to withstand high temperatures. You can buy this type of hose in different types, but it is advisable to buy one with the SEA quality mark, this is an international quality mark and indicates that the hose meets the strictest safety requirements. Hoses that can withstand a high temperature are made of rubber and usually also reinforced with a plastic or steel wire reinforcement that is vulcanized, in addition, a rubber hose has a smooth finish on the inside, which ensures a low resistance.

You can also visit my web shop for an exhaust hose.

Fuel hose.

The fuel hose is made of NBR rubber and is usually equipped with a plastic reinforcement that is vulcanized to prevent kinking or slapping of the hose. The fuel hose is used as a pressure and suction hose in the fuel system. Suction between the tank and feed pump, also called underpressure or vacuum part, and after the feed pump and the fine filter there is pressure on the hose. In addition, the fuel hose must have a low permeability, since you do not want fuel odor. The lifespan of a fuel hose is difficult to indicate, but if it does not come into contact with chemicals from outside, it can last 20 years without problems.

If you no longer hide the fuel hose, replace it, the cost of the fuel hose is only euros per meter, so you do not have to leave it for the money. If you are going to replace the fuel hose, look a little further than just the hose, are the hose tail, valves still in good condition, filter systems are still good and always ensure that you use new hoses clamps and preferably stainless steel.

For a diesel hose that can withstand modern diesel fuel, you can visit my web shop.

Cooling water hose.

We also use a hose for cooling the motor, this hose goes from the valve of the skin feed-through to an impeller pump and must be flexible but stiff enough to not build twice. In the past, Turbana hose was used for this, this is a black hose that is very flexible due to the way this hose was made, but is very dangerous because this hose can abrade spontaneously. The hose is therefore prohibited, but because this hose was used on a large scale in the 70s and 80s, you often encounter them on boats. If you recognize the blow from the picture then I advise you to replace it soon, I have been on several ships where this hose was ruptured and damaged the engine and ship.

You can also visit my web shop for a cooling water hose.

Replacing the Tubana hose does give some effort because it usually has a different baffle diameter at both ends and you have to deal with this with new fitting work. The hose you need is a suction / pressure hose with steel in vulcanized spiral. You can order these on this site, this also applies to hose tail and other brass fitting work. If you can't figure it out, you can email me and I can help.

The photos show a Tubana snake.

How is a snake made.

A hose consists of one or more sheaths with possibly a reinforcement. This reinforcement can consist of a plastic reinforcement or a steel spiral. Plastic hose is pressed through a mold and in case of reinforcement a plastic or steel spiral is woven / wrapped around the pressed inner hose, after which the outer layer is sprayed over it. Incorrect use, eg too high a temperature, can cause the hose to delaminate. Rubber hose does not have this and is made in a different way. with a rubber-wrapped hose, the inner casing is wrapped around a long rod, also called a mandrel. The size of the overlaps during winding partly determines how durable the hose is in the long term. After weaving and / or winding the reinforcement, the outer layer follows, this is also called cloth printing. In an oven, the whole is then vulcanized, this is an operation in which the rubber becomes more elastic.

You can also contact me for the right hose, in my web shop you will find different hoses.

Skin penetrations Hose tails and valves.

A hose is usually fitted with a hose nozzle and sometimes a valve on the hose nozzle. It is difficult to say how long these will last, because this also depends on whether the boat is on salt water and whether electrolysis occurs. Electrolysis is a small current that is created between two precious metals, the more precious metal then sacrifices itself and in most cases that is the brass skin terminal, valve and hose grommet. To prevent electrolysis, the skin penetrations must be properly insulated and a correct anode must be placed on the hull. To seal various fitting work, there are different materials such as Teflon tape for water and gases, but Teflon tape is not suitable for fitting work through which fuel passes, the Teflon tape will dissolve over time. To properly seal fitting work through which fuel flows, it is better to use a sealing glue, it seals very well but is not permanent and you can therefore remove the fitting work whenever you want. Also look for various heat-resistant Teflon tape and fuel-resistant sealing glue in the web shop of this site

Hull penetrations,  Hose tails and valves.

A hose usually has a hose tail and sometimes a valve at the start. How long these will last is difficult to say, because this partly depends on whether the boat is on salt water and whether electrolysis occurs. Electrolysis is a small current that arises between two precious metals, the nobler metal sacrifices itself and in most cases it is the brass skin lead-through, valve and hose grommet. To prevent electrolysis, the skin lead-throughs must be well insulated and a correct anode placed on the hull. To seal various fitting work, different materials such as Teflon tape for water and gases can be used well, but Teflon tape is not suitable for fitting work where fuel passes through, the Teflon tape dissolves over time. To properly seal fitting work through which fuel flows, it is better to use a sealing adhesive, which seals very well but is not permanent and you can therefore remove the fitting work when you want.

You can also find skin penetrations, hose tails and shut-off valves in my web shop.