double acting selector valve one port will tee to the rod side then open to tank other port will tee the piston side to accumulator when the valve isn't powered all ports will be blocked and system will act normally
Just a sample valve
https://www.surpluscenter.com/New-A...or-Valve-Dynamic-DSC-62-10-12-DIN-9-12678.axd
Just a sample valve
https://www.surpluscenter.com/New-A...or-Valve-Dynamic-DSC-62-10-12-DIN-9-12678.axd