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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.
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Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. [mss]