Fuel can be UNDER PRESSURE and there may be a fuel SPILLAGE! At heightened fuel temperatures (above 50 °C) in a closed fuel can, as well as at high altitudes (300+ metres above sea level), pressure in the fuel can may increase. Rapid opening of the fuel can in such conditions could cause a fuel spillage.

Open the fuel can slowly and carefully.

Do not fill the fuel can more than its nominal capacity.

Do not store the fuel can in heat or in direct sunlight. Do not store the fuel can in wet places or in the rain.

Fuel and its vapours are highly flammable – do not smoke or use an open flame when using a fuel can.

Always follow the manufacturer’s instructions when filling units, engines, etc. Do not fill hot and/or running units!

Keep the fuel can out of the reach of children and in a well-ventilated area.


The spout is only compatible with 5, 10 and 20 litre fuel cans manufactured by Wavian. Wavian is not responsible for the compatibility of the product with metal fuel cans made by other manufacturers.

This spout is specially equipped with an air duct that provides air supply to the fuel can when fuelling. This eliminates the vacuum in the fuel can and ensures the quick and easy discharge of fuel.

Caution!!! When starting or stopping the discharge of fuel, a small amount of fuel may leak from the air supply hole!

Make sure that the seal is not damaged (cracked, torn). Replace it if damaged.

The flow of fuel does not stop automatically when using Wavian “Flexi Spout” and “Universal Spout”. When fuelling, you should monitor the level of fuel and stop the process in good time.

After using the spout, remove the spout from the fuel can and close the lid of the fuel can. Make sure that the fuel can is hermetically sealed. Remember that after use, the inside of the spout and the seal is coated with fuel.

When transporting the fuel can, the spout should be removed from the neck of the fuel can, as it does not ensure that the fuel can is airtight.