How to keep the hoses in shape for the longest time?
Few words about hose construction
Fuel burner hoses are made out of hose material according to the EN857 norm under the label of 2SC.
Hose material is designed to resist high pressure, mechanical damage, transportation effects, and outer impacts. There are three layers:
- Inner rubber bladder, resistant to oil products. Its resistance to wind conditions, sunlight, and UV light is very limited.
- Wire braiding increases resistance to inner high pressure and outer mechanical damage.
- Outer rubber bladder, resistant to environmental conditions such as wind, UV light, and atmospheric acids.
What damages hoses the most?
The outer rubber layer is as sensitive as any other rubber product. In general, the hose lifetime depends on proper usage, care, and transport.
Since the hoses are actually not in use more often than they are in use, perfect care and transportation methods must be practiced.
What most affects the hoses is sunlight and UV light, high temperatures, ozone, and organic resolvent. This is even worsen when the hose is in any kind of pinched position, e.g. bent at a sharp angle. For hoses used on Ignis burners, the tightest bend allowed is with a diameter of 90 mm.
Over time, the hose dries out and its outer layer stiffens, resulting in cracks and tears in the hose. When the damaged hose is bent, dirt can get into the hose and affect it from the inside. And the whole process accelerates…
When a tear is so deep that sunlight and other harmful effects can reach the inner layer, the situation worsens quickly. The inner layer is not designed to resist outer effects. In extreme cases, the inner layer can crack and fuel may leak.
The most important basic rule is to empty the hoses before storing them. When propane is in contact with the inner layer of the hose over a longer term, it can damage the gas-proof aspect of it. This damage is impossible to see while examining the system and may result in gas leaks.
How to care for and store the hoses
- When folding and putting away the burner, make sure its spiral is cooled down.
- Before storing the burner, always release all the remaining propane from the hoses.
- Coil the hoses around the burner frame in order to keep the hoses from any sharp edges. The bending diameter should be wide and the hoses loose.
- When storing the burner do not put the weight on the hoses.
- Do not leave the burner and the hoses in direct sunlight or e.g. in a car window. Hoses are black and the surface temperature can easily reach 80°C.
- Never go over the hoses with a car or trailer or stack the cylinders on top of them. This leads to flattening and the wire braiding can crack. Cracked wires damage the rubber layer and the hose may leak.
- Transport and store the burner in an opaque bag.
The 10-year lifetime of balloon hoses is possible only when great care is taken while using them. Even then, there are many cases when the hoses have to be replaced earlier. We recommend observing as many of the above points as possible. This is how to ensure that the hoses will serve you for the longest time.