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MSS SP-101-2024
Part-Turn Valve Actuator Attachment | FA Flange and Driving Component Dimensions and Performance Characteristics (includes errata 5/2025)
This Standard Practice is intended to provide a basis for the standardization of part-turn actuator mounting dimensions and performance characteristics necessary for their attachment to general purpose industrial valves. It covers only those actuators supplied by manufacturers as separate components.
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]