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- 4130 API Flanges
4130 API Flanges
- 4130 Pipe
- Long Sweep Manifold Fittings
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- 4130 ANSI B16.9 Fittings
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- Commission, Service and Maintenance
4130 API 6A flanges have a weld neck to connect to pipework, and are designed to bolt to a corresponding sized flanged end. They are secured with a gasket to ensure a pressure-tight seal. RBV Energy manufacture and supply flanges from top-hat style forgings, which offer a superior quality product with a high yield strength throughout. 4130 Flanges can be provided with a stainless steel or inconel inlay to the ring groove for added protection against corrosion. A wide range of combinations of API size designations, pressure ratings and butt-weld end sizes are available.
API size designations (inches)
1 13⁄16,
2 1⁄16,
2 9⁄16,
3 1⁄16,
4 1⁄16,
5 1⁄8
Butt weld end sizes
2"NB-6"NB, other sizes available
Max working pressures
5,000psi, 10,000psi, 15,000psi, 20,000psi
Product specification level (PSL)
PSL 3 as standard
Temperature ratings
L to U as standard (-46°C to 121°C) . Elevated temperature classes X (180°C) and Y (345°C) also available.
Material classes
DD as standard, others available