Cap for protecting a valve of a cylinder of pressurised fluid and cylinder including such a cap

A cylinder of pressurized fluid, comprising:

• an orifice in which a valve is mounted,
• a protective cap that is fixed at the upper end of the cylinder and forms a protective enclosure around the valve,
• the cap being formed of a rigid structure delimiting a protective volume for the valve, the lower end of the rigid structure being fixed to the upper end of the cylinder,
• wherein
• the rigid structure has a first wall forming a central tubular portion,
• the valve being housed in the tubular portion delimited by the first wall with a space between the valve and the tubular portion,
• the tubular portion extending between the lower end and an open upper end delimiting an access orifice for accessing the internal volume sheltering the valve,
• the rigid structure further comprising a second wall that is disposed concentrically in a spaced-apart manner around the first wall and delimits a protective zone around the first wall, the second wall comprising an annular portion that is disposed concentrically around the first wall and is connected to the first wall via a plurality of connecting arms, the connecting arms each having an end connected to the annular portion and an end connected to the lower part of the first wall, the annular portion comprising a manual handwheel spaced apart from the first wall.