NFPA/T3.5.1 R2-2002 (R2015)

NFPA/T3.5.1 R2-2002 (R2015)

Standard Title:Hydraulic fluid power – Valves – Mounting surfacesReferenced Standards:ANSI/B93.9, ANSI/Y14.5M, IEEE 268, ISO 273, ISO 1000, ISO 1219-1, ISO 1302, ISO 4287, ISO 4288, ISO 4412-1, ISO 5598, ISO 9461Standard Scope:This standard includes mounting surfaces for the following: directional control valves; compensated flow control valves; check valves; pilot operated check valves; pressure control valves; sequence valves; throttle valves; unloading valves; pressure relief valves. This standard includes the following dimensional criteria: minimum surface dimensions; sizes and locations of tapped holes for mounting bolts; sizes and locations of ports; sizes and locations of dowel or rest pins where required. This standard provides the following general criteria: surface finish and flatness; indication of tolerances where pertinent; indication of appropriate radii. This only applies to the dimensional criteria of products manufactured in conformance with this standard.

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