This SAE Recommended Practice has been set up by Subcommittee 4 of the Off-Road MachineryTechnical Committee and is primarily for directional control valves on construction and industrial machineryequipment as referenced in SAE J1116. The purpose is to establish port area to flow relationship and match valve spool eye ends in relation to rated capacity.Port connections are optional for either the 4-bolt split flange connection or the internal straight thread "O" ring connection.
SAE J748-1957 history
2019SAE J748-2019 Hydraulic Directional Control Valves@ 3000 psi Maximum@ Recommended Practice
2014SAE J748-2014 Hydraulic Directional Control Valves, 3000 psi Maximum
2008SAE J748-2008 Hydraulic Directional Control Valves, 3000 psi Maximum
1986SAE J748-1986 HYDRAULIC DIRECTIONAL CONTROL VALVES, 3000 PSI MAXIMUM
1957SAE J748-1957 Hydraulic Directional Control Valves, 3000 psi Maximum, Recommended Practice