A high flow (300 GPM) and high pressure (6000 PSI) application for a single acting cylinder.
The customer was using four expensive servo valves as a stopgap measure to operate the cylinder. This system was not working properly as the cylinder was a three way application and not four way. This resulted in difficulties in achieving the appropriate pressure levels to accurately control the cylinder. Furthermore, this application required very high oil flows with strict tolerances on P/Q control at a pressure that exceeded the capabilities of most products currently on the market.