Fire fighting reserves for protection from fireOur professional range of flexible fire fighting tanks is specially designed to meet the text of the interministerial circular No. 465 of December 10, 1951. We offer you two ranges of tanks, each offering configurations adapted to your needs. First of all, we advise you to contact the SDIS (Departmental Fire and Rescue Service) on which you depend because the requirements can vary from one geographical location to another. However, the number of flange blocks and valves are the same throughout France, namely 1 water intake per 120m3. For example, you will need 2 DN100 water intakes for a 240m3 tank.