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NFPA/T3.5.50-2009 (R2014)

NFPA/T3.5.50-2009 (R2014)

Standard Title:Hydraulic fluid power – Two-, three-, and four-port screw-in cartridge valves – Cavities with UN and UNF threadsReferenced Standards:ISO 5598, ISO 5783, ISO 11926-1Standard Scope: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.

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