Nipoflanges
Nipoflanges are hybrid branch connection fittings combining a Weldolet, Nipolet, and flange, featuring a welding connection to the run pipe and a flange connection for the branch.
Designed for high-pressure piping systems, Nipoflanges are used in oil and gas, petrochemical, and power generation industries for secure and versatile branch connections.
Nipoflanges integrate the features of a Weldolet, Nipolet, and flange, offering a robust solution for branch connections. The fitting is welded to the run pipe using a butt-weld or fillet weld, while the branch side features a flange that connects to flanged valves, fittings, or pipes, allowing for easy assembly and disassembly. This design provides integral reinforcement, reducing stress concentrations, and is ideal for applications requiring a transition from welded to flanged systems. Nipoflanges are typically used in high-pressure and high-temperature environments, ensuring reliable performance and compatibility with standard flange specifications.
Nipoflanges are manufactured to meet industry standards, ensuring compatibility and performance in critical piping systems.
Type/Standard | Material | Application |
---|---|---|
Standard Nipoflange: MSS SP-97, ASME B16.5 | Carbon Steel (A105, A234 WPB), Stainless Steel (304/304L, 316/316L) | Oil and gas, petrochemical processing |
High-Pressure Nipoflange: MSS SP-97 | Alloy Steel (A182 F11, F22), Duplex (F51), Inconel 625 | Power generation, high-pressure systems |
Nipoflanges are essential in industries requiring reliable branch connections with flanged interfaces:
Properties | Values & Limits |
---|---|
Material | Carbon Steel (A105, A234 WPB), Stainless Steel (304/304L, 316/316L), Alloy Steel (A182 F11, F22), Duplex (F51), Inconel 625 |
Design Standards | MSS SP-97, ASME B16.5 (Flange), ASME B16.11 (Weld) |
Connection | Butt-Weld or Fillet Weld (Run Pipe), Flange (Branch) |
Size Range | 1/2" to 24" (Branch Flange); Up to 36" (Run) |
Pressure Rating | ANSI Class 150 to 2500 (Flange), Class 3000 to 6000 (Weld) |
Wall Thickness | Sch 40 to Sch XXS |
Testing Standards | ASME B31.3, ASME B16.5, ASME B16.11 |
Flange Types | Weld Neck, Slip-On, Blind (per ASME B16.5) |