(NFPA) - NFPA T3.5.50
Hydraulic fluid power – Two-, three-, and four-port screw-in cartridge valves – Cavities with UN and UNF threads
|Publication Date:||8 January 2009|
This standard specifies the dimensions relating to cavities with UN and UNF threads in which two-, three-, and four-port screw-in cartridge valves are mounted, in order to ensure dimensional interchangeability.
NOTE For size 4, 7 and 12 cavity dimensions, see manufacturers' recommendations. Cavity sizes 4, 7 and 12 may be added in future editions of this document.
It is applicable to two-, three-, and four-port screw-in cartridge valves generally used in industrial, agricultural, mining and mobile equipment.