Nipoflange | Flanged Branch Outlet | ASME B16.5 Flange Dimensions, Where Applicable | Class 150–2500
Elite provides Nipoflanges for compact 90° branch connections in process piping systems. A Nipoflange combines a forged branch outlet with an integral flange, providing a direct flanged connection from a main pipe or header to valves, instruments, equipment or branch piping.
Nipoflanges are commonly used where a compact, forged branch connection is preferred over a fabricated branch assembly. They are suitable for process piping, headers, manifolds and high-pressure applications, with materials, flange dimensions and branch geometry selected according to the applicable standards and project requirements.
| Specification | Details |
|---|---|
| Product Type | Nipoflange / Nipo Flange / Flanged Branch Outlet |
| Flange Dimension Standard | ASME B16.5, where applicable |
| Large Diameter | ASME B16.47, where applicable |
| Branch Outlet Standard | MSS SP-97, where applicable |
| Pipeline Applications | MSS SP-44, where applicable |
| Nominal Flange Size | NPS 1/2–24 under ASME B16.5; larger sizes available to project requirements |
| Pressure Classes | 150, 300, 400, 600, 900, 1500, 2500 |
| Branch Configuration | 90° forged branch outlet with integral flange |
| Facing | RF, FF or RTJ, where applicable |
| Connection | Branch outlet with flanged end |
| Construction | Forged and machined construction |
| Branch Bore | Standard or project specific |
| Dimensions | Standard flange dimensions or custom design |
| Heat Treatment | As required by material specification |
| Surface Finish | Standard or customer specified |
| Marking | Size, class, material, heat number and required identification |
| Inspection | Visual, dimensional, material and mechanical testing as applicable |
| NDE | PMI, UT, MT, PT and other methods as specified |
| Documentation | MTC, EN 10204 3.1/3.2, COC and inspection reports |
| Custom Requirement | Details |
|---|---|
| Main Pipe Size | NPS or project-specific diameter |
| Branch Size | NPS or project-specific diameter |
| Pressure Class | 150–2500 or project specified |
| Material | Required material grade |
| Flange Facing | RF / FF / RTJ, where applicable |
| Flange OD | Standard or project specified |
| Flange Thickness | As required |
| Branch Bore | Project specific |
| Branch Wall Thickness | Based on design requirements |
| Bolt Circle | As required |
| Bolt Holes | Number, diameter and configuration |
| Overall Dimensions | Project specific |
| NDE | Project specified |
| Inspection | ITP / third-party requirements |
| Marking | Customer requirements |
| Inspection / Documentation | Availability |
|---|---|
| Material Test Certificate | Available |
| EN 10204 3.1 | Available |
| EN 10204 3.2 | Where specified |
| Certificate of Conformance | Available |
| Dimensional Inspection | Available |
| Chemical Analysis | Material dependent |
| Mechanical Testing | Material dependent |
| Heat Treatment Records | Where applicable |
| PMI | As specified |
| Ultrasonic Testing (UT) | As specified |
| Magnetic Particle Testing (MT) | As specified |
| Liquid Penetrant Testing (PT) | As specified |
| Visual Inspection | Standard |
| Third-Party Inspection | Available |
| ITP | Project specific |
| Material Traceability | Maintained |
| Packing & Marking Records | Available |
Note: Nipoflanges are specialized forged branch outlet fittings. MSS SP-97 is applicable to the integrally reinforced branch outlet portion, while the flange dimensions may follow ASME B16.5 or another project-specified flange standard.
Carbon Steel
ASTM A105/A105N, ASTM A181, ASTM A350 LF2/LF3 and ASTM A694 F42, F46, F52, F60 and F65.
Stainless Steel
ASTM A182 F304/F304L, F316/F316L, F321/F321H, F347/F347H, F310/F310S, F317 and F904L.
Duplex & Super Duplex
ASTM A182 F51, F53 and F55.
Alloy Steel
ASTM A182 F1, F5, F9, F11, F12, F22, F91 and F92.
Nickel Alloys
Nickel 200/201, Monel 400/K500, Inconel 600/601/625/800/825, Hastelloy C276 and Alloy 20.
Copper-Nickel Alloys
UNS C70600 and C71500, including 90/10 and 70/30 Cu-Ni alloys.
Material selection is based on operating pressure, temperature, process fluid, corrosion conditions, mechanical requirements and applicable project specifications.
90° Branch Connection
The Nipoflange provides a compact 90° branch connection from the main pipe or header to a flanged outlet. The flanged end allows direct connection to valves, piping, equipment or other flanged components.
Integral Forged Construction
The branch outlet and flange are produced as an integrated forged component where specified, reducing the need for separate fabricated branch components.
Reinforced Branch Outlet
The branch geometry provides an integrally reinforced connection designed according to the applicable branch fitting standard, pipe dimensions and project requirements.
Flange Facing
Available facing configurations may include:
Facing selection depends on size, pressure class, material, mating equipment and project requirements.
Elite’s manufacturing and inspection process can include:
Nipoflanges are commonly used in:
For quotation, provide:
Main Pipe Size + Branch Size + Pressure Class + Material + Facing + Flange Standard + Branch Configuration + Quantity + Inspection Requirements
Example
8″ × 4″ Class 600 Nipoflange, ASTM A105N, RF, ASME B16.5 flange dimensions, MSS SP-97 branch outlet, EN 10204 3.1.
