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PIP PNSMV037 - BRONZE AND IRON BUTTERFLY VALVE DESCRIPTIONS Organization: PIP
SN - NS 7320:1982 - VALVES - CAST IRON BUTTERFLY VALVES WAFER TYPE - DN 50 TO DN 600 - NOMINAL PRESSURE PN 10 - SOFT SEAL Organization: SN
Date: 1982-05-01
SN - NS 7322:1982 - VALVES - SPHEROIDAL GRAPHITE CAST IRON BUTTERFLY VALVES WAFER TYPE - DN 50 TO DN 600 - NOMINAL PRESSURE PN 16 - SOFT SEAL Organization: SN
Date: 1982-05-01
SN - NS 7321:1982 - CAST IRON BUTTERFLY VALVES WITH FLANGES - DN 100 TO DN 600 - NOMINAL PRESSURE PN 10 - SOFT SEAL Organization: SN
Date: 1982-05-01
DIN 3354-2 - BUTTERFLY VALVES SOFT MATERIAL SEAT SEAL CAST IRON TIGHT BUTTERFLY SHUTOFF VALVES WITH FLANGED ENDS Organization: DIN
Date: 1982-06-01
ISO 10631 - METALLIC BUTTERFLY VALVES FOR GENERAL PURPOSES - SECOND EDITION Organization: ISO
Date: 2013-09-01
Description: This International Standard specifies requirements for design, materials (e.g. steel, cast iron, ductile iron, copper alloy), pressure/temperature ratings and testing for butterfly valves having metallic bodies for use in general purpose flanged or butt welding piping systems.
API - STD 609 REDLINE - BUTTERFLY VALVES: DOUBLE-FLANGED, LUG-AND WAFER-TYPE - SEVENTH EDITION Organization: API
Date: 2009-10-01
Description: This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection and test requirements for gray iron, ductile iron, bronze, steel, nickel-based alloy, or special alloy butterfly valves that provide tight shutoff in the closed position and are suitable for flowregulation.

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