The Delta DF-7X series of variable induction low-expansion foam branchpipes are lightweight, highly maneuverable and designed to discharge fully aspirated foam directly onto the risk. Ideal for all foam types including the new fluorine-free foams producing excellent aspirated foam with good expansion and long drainage times, both important features when using fluorine-free foams.Foam concentrate is induced either via a 3m foam pick-up tube fitted to the branch (optional extra) or alternatively a pre-mixed foam solution can be introduced to the branch via an in-line inductor or round-the-pump proportioner.  The ‘Foam Selector’ dial allows the operator to easily select between 3%, 6% or Pre-Mix induction.The DF-7X Foam Branchpipe is designed for use with inlet pressures between 3 bar and 10 bar. At 5½ bar the DF-7X will provide a 225 lpm flow rate generating approximately 2,300 lpm of finished foam.