Flange Ring

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.

Image Position 2: Main products Banner
图片建议：放一张横幅图，标题为 MAIN PRODUCTS，展示 Flange Ring、Plate Flange、Slip On Flange、Blind Flange、Weld Neck Flange 等产品。
图片标题：Main Flange Products

Flange Ring Specifications

Flange Ring Materials & Grades

Flange Ring Dimensions

Flange Ring Dimension Drawing

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.

Image Position 4: Workshop Image
图片建议：放切割、锻造、热处理、机加工、钻孔、密封面加工、检测、包装照片拼图。
图片标题：Flange Ring Workshop

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.

Image Position 5: Application Scenarios
图片建议：放管道连接、阀门连接、设备法兰、化工厂、油气管道、压力容器场景。
图片标题：Flange Ring Application Scenarios

Why Choose Us

Comprehensive Manufacturing Capability

We coordinate cutting, forging, heat treatment, machining, drilling, surface treatment, inspection, and packaging under one production system.

Customized Production Support

We can manufacture flange rings with customized OD, ID, thickness, bolt holes, sealing face, ring width, material, and coating.

Strict Quality Inspection

Each batch is inspected for material grade, dimensions, bolt hole accuracy, surface finish, sealing face, and appearance.

Image Position 6: Certificates
图片建议：放 SGS、ISO、TUV、PED、材质证书、检测报告等证书图。
图片标题：Flange Ring Certificates

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.

Image Position 7: Contact Banner
图片建议：放产品库存、加工现场、包装、发货、Contact Us 横幅图。
图片标题：Contact Us for Flange Ring