Fire overpressure
Domestic pumps and booster sets - Water overpressure in buildings

Buildings or communities must have a pressurized water network for fire-fighting, and full automation of the system is generally required.

In other words, the circuit needs to be under constant pressure, so that simply opening a lance provides the necessary pressure and flow.

The general rules governing fire systems are briefly described at the beginning of this article.

For high-rise buildings, the water reserve must be a minimum of 120 m³, and this reserve must be maintained while the tank is being cleaned. In practice, this means 2 tanks of 120 m³, 3 tanks of 60 m³ or 4 tanks of 40 m³.

The booster pump must be capable of delivering a flow rate of 120 m³ / h, corresponding to the simultaneous flow rate of 2 wet columns (NF S 61-751), and must systematically include an emergency pump.

The network is supplied,...