| http://www.w3.org/ns/prov#value | - The flanges shall bemanufactured according to the following standards except for supplement thereof. a) Flanges DN 15 (NPS ??) to DN 600 (NPS 24) as per ASME/ANSI B 16.5. b) Flanges DN 650 (NPS 26) to DN 1500 (NPS 60) as per MSS-SP-44. c) Orifice flanges as per ASME/ANSI 16.36-1988.Cast iron and bronze flanges are not covered by this Standard.2.
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