35kg PROPANE gas cylinder

This gas cylinder has a capacity of 35kg of propane; its empty weight (tare) is between 35 and 37kg.

Its use is mainly industrial or commercial, for those locations where it is not possible to use a bulk gas tank, although it is more and more frequent to see it used in domestic installations where a larger storage capacity is needed.

The cylinders must be placed outside the premises or residences, inside a shed, preferably as a simultaneous discharge bank formed by an equal number of cylinders (2+2, 3+3, 5+5, etc.) in such a way that half are in use and the other half form a reserve. In this way, when the first set runs out, the reserve cylinders automatically enter into use, thus offering an uninterrupted supply of gas.

The gas cylinder valve has a protective covering designed to protect it and avoid the depositing of foreign matter that might affect the correct functioning of the valve.

The gas cylinders are marked with their tare, the year the next regular check is due and a label or stamp to indicate the characteristics of the contents and the R/S safety phrases, as well as DISA's address and customer service telephone number.

They are different in appearance to the 40g butane gas cylinders because of the horizontal red strip that appears on the cylinder, as well as the inscription of the word PROPANE in the centre.


Liquid petroleum gases (LPG) supplied in bulk can be either butane or propane, although commercial propane gas, made of a mixture of propane gas (minimum 80%) and butane gas (maximum 20%), is the most commonly used because of its greater calorific power and above all because of its lower freezing point (-45ºC).

The LPG is stored in fixed tanks, the capacity of which varies depending on the needs of the facility supplied, the operational period required and the available area for installation of the tank.

The tanks can be above or below ground. The installation of an above-ground tank is cheaper, as it saves the cost of digging a pit in which the tank can be buried and it allows for a better vaporisation of the gas, but requires greater safety distances. The installation of an underground tank allows for a saving in the area required for safety distances, but it is more expensive, both initially and in its later maintenance.

The product (LPG) is supplied in its liquid phase from a tanker truck, with the maximum degree of filling of the tank being 85% of its volumetric capacity, because for reasons of safety the tank must have a minimum of 15% free space to enable the gas to expand in the case of an increase in temperature inside the tank.