Weld Neck Flange
Long tapered hub for high pressure and critical service piping.
Annual Star Pte. Ltd. supplies premium pipes, fittings, flanges, bars, fasteners and copper products for global industries.
Annual Star Pte. Ltd. supplies premium pipes, fittings, flanges, bars, fasteners and copper products for global industries.
Common banner, rich product data, specifications, materials, types, dimensions and applications.
High-integrity flange connections supplied for pressure, temperature and corrosion-critical systems. Annual Star Pte. Ltd. supports bulk, project and urgent supply requirements with practical documentation and logistics coordination.
1/2 inch to 60 inch, custom large diameter available
ASME B16.5, B16.47, EN 1092-1, DIN, JIS
Class 150, 300, 600, 900, 1500, 2500, PN6 to PN100
RF, FF, RTJ, tongue and groove, male-female
Serrated, smooth, galvanized, machined, coated
SS, Carbon Steel, Duplex, Super Duplex, Alloy Steel, Nickel Alloy
Long tapered hub for high pressure and critical service piping.
Easy-fit flange option for low and medium pressure applications.
Used to close pipe ends, valves and pressure vessel openings.
Compact flange for small bore high pressure piping systems.
Connection without welding for utility and maintenance lines.
Used with stub ends where frequent dismantling is required.
Excellent for ambient and higher-temperature service in pressure systems and valve installations.
High resistance to oxidation and corrosion, essential for chemical, petrochemical, and sanitary piping.
Forged for high-temperature and high-pressure performance in power plants and refineries.
Exceptional pitting and crevice corrosion resistance for offshore platforms and subsea systems.
| Size / Type | OD / Range | Schedule / Class | Thickness / Grade | Standard | Length / Finish |
|---|---|---|---|---|---|
| 1/2 in | DN 15 | Class 150 / 300 / 600 | RF / FF / RTJ | ASME B16.5 | WN / SO / BL |
| 1 in | DN 25 | Class 150 / 300 / 600 | RF / FF / RTJ | ASME B16.5 | WN / SO / BL |
| 2 in | DN 50 | Class 150 - 1500 | RF / RTJ | ASME B16.5 | WN / SO / SW |
| 4 in | DN 100 | Class 150 - 2500 | RF / RTJ | ASME B16.5 | WN / SO / BL |
| 8 in | DN 200 | Class 150 - 2500 | RF / RTJ | ASME B16.5 | WN / BL |
| 12 in | DN 300 | Class 150 - 2500 | RF / RTJ | ASME B16.5 | WN / BL |
| 24 in | DN 600 | Class 150 - 900 | RF / RTJ | ASME B16.47 A/B | WN / BL |
| 60 in | DN 1500 | Project class | Machined | ASME B16.47 / Drawing | Custom |