Parker’s spool type logic elements can be used for direction and pressure/flow control, and are available normally-open and normally-closed with internal or external pilots for pressures up to 420 bar (6000 psi) and flows up to 500 lpm (132 gpm).

Parker’s spool type logic elements can be used for direction and pressure/flow control, and are available normally-open and normally-closed with internal or external pilots for pressures up to 420 bar (6000 psi) and flows up to 500 lpm (132 gpm).