Spare Parts for Noken Thermostatic valve 2 way with wax thermo-element. ? Inch connectors. Integrated shut off. The flowrate at 3 bar (mixed water) for 1 water way is 36,5 Litres Per Minute. For 2 water ways at the same time simultaneusly is 39,5 Litres Per Minute to be shared between both of them. Includes non-return valves and 38?C security stop