Butterfly Valve Standards
- API Std 598 - Valve Inspection and Test
- API Std 609 - Butterfly Valves: Double-Flanged, Lug- and Wafer-Type
- ASME B1.1 - Unified Inch Screw Threads, (UN and UNR Thread Form)
- ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and 250
- ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
- ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed
- ASME B16.24 - Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500 and 2500
- ASME B16.34 - Valves Flanged, Threaded and Welding End
- ASME B16.42 - Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300
- ASME B16.47 - Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
- ASME B31.3 - Process Piping
- ASME B46.1 - Surface Texture (Surface Roundness, Waviness, and Lay)
- AWWA C504 - Rubber Seated Butterfly Valves
- AWWA M49 - Butterfly Valves: Torque, Head Loss & Cavitation Analysis
BSI Standards
- BS 5155 - Specification for butterfly valves
- ISO 5752 - Metal valves for use in flanged pipe systems -- Face-to-face and centre-to-face dimensions
- ISO 10631 - Metallic butterfly valves for general purposes
- MSS SP-6 - Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings
- MSS SP-25 - Standard Marking Systems for Valves, Fittings, Flanges and Unions
- MSS SP-44 - Steel Pipeline Flanges
- MSS SP-45 - Bypass and Drain Connections
- MSS SP-67 - Butterfly Valves
- MSS SP-91 - Guidelines for Manual Operation of Valves
Tags: Valve Sizing Standards