Crude Oil Dilution Skid Project On Site. S&S was asked to develop a solution to dilute crude oil with naphtha for a pipeline project in South America. The skid system has 300# class piping, 42″ inlet/outlet headers, (3) 30″ static mixers, 30″ gate valves, (3) 30″ MOV’s, 10″ coriolis meters, sampling system with gear pump, on skid Allen-Bradley PLC/HMI, flow computers.