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Flange Ring
Material: Carbon Steel, Alloy Steel and Stainless Steel
Thickness: According to ASME / EN / DIN / JIS or customized drawing
Standard: ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS, Custom Drawing
Class Range: Class 150 to 2500, PN6 to PN100
Flange Face Type: RF, FF, RTJ, Customized Sealing Face
End: Open ring type
Connection: Bolted flange connection / Used with pipe flange assembly
Manufacturing Process: Forging, Plate Cutting, Heat Treatment, Machining, Drilling, Surface Treatment
The Flange Ring is an open ring-type flange component used for pipeline connection, sealing support, reinforcement, or special flange assembly. It can be manufactured according to standard dimensions or customized drawings for different pipeline and equipment applications.
Flange Ring- High-Performance Industrial Connection Solution
Shanxi HongKai Forging Co., Ltd. specializes in manufacturing premium Flange Ring products" target="_blank">products with integrated production capabilities spanning forging, heat treatment, machining, and comprehensive quality testing. Our enterprise-level solutions feature specifications ranging from DN15 to DN4000, pressure ratings up to Class 2500, and compliance with multiple international standards including ASME B16.5, EN1092-1, and DIN. With three department workplaces and free import-export rights, we provide prevalent channeling association arrangements for requesting mechanical applications worldwide.
What is Flange Ring
A Flange Ring is a circular ring-shaped flange component with a central bore and bolt holes. It is commonly used for pipe flange connection, lap joint assemblies, backing rings, reinforcement rings, or customized flange structures.
Unlike a blind flange, a flange ring has an open center bore. Unlike a complete weld neck or slip-on flange, it is usually a simpler ring-type component used for connection support, sealing, or assembly purposes.
Flange Ring Specifications
| Standard | Type | Class / Pressure Rating | Size Range | Material Options |
|---|---|---|---|---|
| ASME B16.5 | Flange Ring | Class 150-2500 | NPS 1/2”-24” | ASTM A105, A182, A350 |
| ASME B16.47 | Large Diameter Flange Ring | Class 75-900 | NPS 26”-60” | Carbon Steel, Alloy Steel |
| EN 1092-1 | Ring Type Flange | PN6-PN100 | DN15-DN1200 | Carbon Steel, Stainless Steel |
| DIN | Flange Ring / Backing Ring | PN6-PN100 | DN15-DN1200 | Carbon Steel, Stainless Steel |
| JIS | Steel Flange Ring | 5K, 10K, 16K, 20K | DN15-DN1000 | SS400, SUS304, SUS316 |
| Custom Drawing | Non-standard Flange Ring | Customized | Customized | Customized Materials |
| Sealing Surface | RF, FF, RTJ, Custom Face | - | - | - |
| Coating | Black Paint, Anti-rust Oil, Galvanizing, Epoxy | - | - | - |
Flange Ring Materials & Grades
| Material | Grade |
|---|---|
| Carbon Steel | ASTM A105, Q235, S235JR, ASTM A350 LF2 |
| Alloy Steel | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |
| Stainless Steel | ASTM A182 F304, 304L, F316, 316L, 321 |
| Duplex Steel | F51, F53, F55, S31803, S32205, S32750 |
| Nickel Alloy Steel | Inconel 600, Inconel 625, Incoloy 825, Hastelloy C276 |
| Copper Alloy | CuNi 90/10, CuNi 70/30 |
| Custom Material | According to customer drawings and project requirements |
Flange Ring Dimensions
Flange Ring Dimension Drawing
| Dimension Item | Description |
|---|---|
| OD | Overall outside diameter |
| ID | Inside diameter / open bore |
| Thickness | Plate or ring thickness |
| Ring Diameter | Outside diameter of flange ring section |
| Ring Width | Radial width of the flange ring |
| Bolt Hole | Bolt hole quantity and diameter |
| BCD | Bolt circle diameter |
| Sealing Face | RF, FF, RTJ, or customized sealing surface |
Advantages of Flange Ring
Simple Ring Structure
Flange rings have a simple open-ring design, making them easy to machine, install, and customize.
Flexible Application
They can be used as backing rings, lap joint flange rings, reinforcement rings, or special flange components.
Reliable Sealing Support
Accurate sealing face machining helps improve gasket contact and reduce leakage risk.
Multiple Standard Options
Products can be manufactured according to ASME, EN, DIN, JIS, and customer drawings.
Wide Material Selection
Carbon steel, stainless steel, alloy steel, duplex steel, nickel alloy, and customized materials are available.
Applications
Pipeline Connection
Used in general industrial pipe flange connection and assembly systems.
Lap Joint Flange Assembly
Used as backing rings or loose flange rings in lap joint flange applications.
Equipment Connection
Suitable for pumps, valves, pressure vessels, tanks, and equipment nozzles.
Chemical Processing
Stainless steel and alloy flange rings are used for corrosive and demanding media.
Oil and Gas Pipelines
Used in pipeline connection, maintenance, and customized flange assemblies.
Why Choose Us
Comprehensive Fabricating Capabilities
We coordinated manufacturing, warm treatment, machining, testing, and bundling beneath one roof. You get steady quality control all through the whole generation process.
International Standards Compliance
Our products meet ASME, EN, DIN, JIS, and GOST standards. You can specify the exact requirements for your regional applications with confidence.
Extensive Estimate Run
From DN15 to DN4000, we cover essentially all mechanical necessities. Your ventures advantage from single-source obtainment convenience.
Quality Affirmation
Progressed testing offices guarantee each product meets details. You get certified items with total traceability documentation.
Global Trade Involvement
Our items serve markets over Europe and the Americas. You work with demonstrated providers who get it worldwide quality expectations.
Competitive Preferences
Prevalent quality, competitive estimating, secure bundling, and quick conveyance combine to back your extend timelines and budgets.
FAQ
Q: What is a Flange Ring?
A: A flange ring is an open circular flange component with a central bore and bolt holes, used for flange connection, backing, sealing, or reinforcement.
Q: Is Flange Ring the same as Plate Flange?
A: Not exactly. A plate flange is usually a complete flat flange for pipe welding, while a flange ring may be used as a backing ring, loose ring, or customized flange component.
Q: Can Flange Ring be customized?
A: Yes. OD, ID, thickness, bolt holes, BCD, sealing face, material, and coating can be customized.
Q: What standards are available?
A: ASME, EN, DIN, JIS, and customer drawings are available.
Contact Us
Ready to enhance your pipeline connection systems with premium Flange Ring solutions? Contact kevin.zhao@hkflange.com for technical specifications and competitive quotations today.
Clear Communication, and Reliable Technical Support