The installation of an oil tank must comply with the standards set by the decree of 1 July 2004.
In particular, they concern the installation and commissioning of storage facilities for petroleum products such as fuel oil.
Buried, in a room, outside: the installation of an oil tank can be carried out in different ways.
Non-buried storage of an oil tank in a building
The standards with respect to an unburied tank differ according to the volume of the storage. In the case of a maximum capacity of 2,500 liters, the tank can be installed on the ground floor or in the basement on a flat masonry floor. The piece must be:
- Well ventilated
- Closed by a flamethrower door (degree 1 / 4H)
In addition, walls and floors (top and bottom) must be 1 / 2H degree of fire protection.
If the capacity of the tank is greater than 2,500 liters, the tank must be installed in a dedicated room. In this case, the flame arrestor must be of degree 1H and open outwards. Another important point: a fresh air intake of minimum 1m ² is obligatory in the local.
Standards for outdoor storage not buried
The installation of an outdoor tank can only be done in the case where it is designed for outdoor use. The installation of an outdoor tank must respect a minimum distance between the wall of the tank and the nearest building, to be defined according to the storage capacity:
- Less than 2,500 liters = no imposed distance;
- From 501 to 6000 liters = 1 meter;
- From 6,001 to 10,000 liters = 6 meters;
- From 10,001 to 50,000 liters = 7 meters;
- Greater than 50,000 liters = 10 meters.
Installation of a fuel tank in a pit
The storage of domestic fuel oil via an ordinary type tank is possible in the pit. The installation of the oil tank can be carried out either outdoors or indoors but only if no living space is present under the pit. In both cases, no water supply and sewage, gas or electricity pipe should pass into or under the pit. To meet the standards, the pit must:
- Be covered with waterproof coating and petroleum product inside;
- Form a reservoir with a volume equal to the capacity of the reservoir to a minimum;
- Have a look to control the low point of the platform.
Last point: the pit must not be backfilled to easily see the absence of leakage.
The buried storage
In the case of buried storage, the tank must be of reinforced security. It can be buried outdoors or indoors, at the lowest level of the building. The other rules are:
- Mooring of the tank to a concrete slab;
- Protection and electrical insulation in the case of a steel tank;
- Passage of pipelines other than for storage above 0.50 meters.
The plastic oil tank
A plastic oil tank can be made of high density polyethylene (HDPE) or thermosetting resins reinforced with glass fibers. In the first case, the tanks may be unburied outdoors or inside a building. In the case of a plastic fuel tank composed of thermosetting resins reinforced with glass fibers, the laying must be in pit or buried.