To start a flow divider, the inlet (or starting) pressure must always be at least 20 or 30 bar, under normal operating conditions (i.e., the flow rate listed as recommended in the catalog). For higher than normal viscosities (greater than 68 cst) and when the number of flow divider elements is large or the flow rate is higher than recommended, the starting pressure values may be higher. In this case we advise you to contact our technical office to understand together which value is more correct to consider.