Though the flow capacity of Low Expansion (LX) Foam branches can vary from manufacturer to manufacturer, standard foam branches are normally designed for the following capacities – 200/225 lpm (FB 5X) 400/450 lpm (FB 10X), 800/900 lpm (FB20X) (Note – all flows at 7 kg/cm2 inlet pressure).
Flow capacities for AAAG LX Foam branches can be identified from the model – the ‘5’ & ‘10’ in the FB5X and FB10X refer to flow of 50 and 100 Gallons (British) per minute. This converts to 225 lpm (for FB5X) and 450 lpm (for FB10X) using conversion of 1 Gallon (British) = 4.5 Litres. The ‘X’ in the model number refers to expansion ratio of the branch i.e. roman numerical ‘X’ indicates approximately 10 times expansion.