Standards of ANSI B16.5 & ANSI B16.47 Flanges:

ANSI B16.47 Large Diameter Steel Flanges: NPS 26 through NPS 60 This Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60 and in ratings Classes 75, 150,0300, 400, 600, and 900. Flanges may be cast, forged, or plate (for blind flanges only) materials. Requirements and recommendations regarding bolting and gaskets are also included.

ANSI B16.5 Flange Pressure Rating

• Class 150
• Class 300
• Class 600
• Class 900
• Class 1200
• Class 1500
• Class 2500

ANSI B16.5 Flange Size

• DN15 - DN2000
• 1/2 inch to 24 inch
• Tolerance

ANSI B16.5 Material(ASTM Standard)

• ASTM A105
• ASTM A181
• ASTM A182
• ASTM A350

ANSI B16.5 Flange App. Weight and Bolt and Stun Dimension

• ANSI B16.5 Flange - APP. Weight
• ANSI B16.5 Flange - Bolt and Stun Dimension
• ANSI B16.5 Flange - Surface treatment