How do we calculate line pressure loss in a grease lubrication system?
The exact pressure drop in any given line size will depend on the inside diameter of the line, the flow rate, the temperature, the NLGI grade number and the formulation of the particular grease being used. The number of elbows and bends in the line will also increase the total pressure drop. However, the following when used with two simple rules of thumb will allow you to make a reasonable approximation of the pressure drop in the line.
