ANSI B16.47 Series B Flanges
ANSI B16.47 Series B flanges adhere to API 605 standards for nominal pipe sizes NPS 26 to 60, featuring thinner profiles for weld neck and blind ends suited to general large-diameter piping. Lighter than Series A, they balance performance and economy in less demanding setups.
Materials and Grades
Sumitec provides these in carbon steel ASTM A105 and LF2, alloy steels F5, F11, F22, stainless 304, 316, 321, duplex F51/F53, and nickel alloys like Inconel 625 for broad compatibility.
Pressure Classes and Dimensions
Offered in Class 150, 300, 400, 600, 900 with flat, raised face, or RTJ options; Class 150 examples include 26-inch at 787 mm OD, 44 mm thickness, 36 holes on 745 mm circle; 30-inch 888 mm OD, 51 mm thick with 44 holes on 846 mm; 36-inch 1057 mm OD, 59 mm thick, 44 holes on 1010 mm.
Applications and Benefits
Perfect for oil/gas distribution, water systems, power utilities, and chemical lines needing efficient large-bore connections. Series B cuts weight and cost versus heavier Series A.
How to Buy from Sumitec- ANSI B16.47 Series B Flanges Supplier in USA
Secure custom ANSI B16.47 Series B flanges with certifications, testing, and quick delivery—access dimension PDFs and 3D files. Inquire for weld neck, blind, or alloy specifics.
Frequently Asked Questions
What sets Series B apart from A? Thinner per API 605 for lighter duty. Sizes? NPS 26-60. Classes? 150-900. Materials? Carbon to nickel alloys
