A good way to increase your filter operative life, is to adopt filter elements with a bigger than usual surface. This is due to the effect of some hydraulic and fluid dynamics laws (Darcy and Poiseuille),this laws indicate that the pressure drop in a filter element, is inversely proportional to the square of the applied filter surface, so if you double this filter surface, you obtain ¼ of the original pressure drop, not changing the other parameters (flow rate, viscosity, degree of filtration and so on). Practically, if you have a 1200 cm2 filter element area that has a pressure drop of about 0.42bar @ 30lt/1’ and 3um absolute rating filtration, doubling the surface area and not changing the other parameters, you’ll obtain a pressure drop around ¼ of the original one, not the half of it.