Reducing Flange

Reducing Flange- High-Performance Industrial Connection Solution

Shanxi HongKai Forging Co., Ltd. specializes in manufacturing premium Reducing Flange 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 Reducing Flange

A Reducing Flange is a special flange used to connect a larger pipe to a smaller pipe directly. Unlike standard flanges with the same bore size as the pipeline, reducing flanges have a reduced inner bore to match the smaller pipe diameter.

This design can replace a standard flange plus reducer combination, helping reduce installation space, welding work, material cost, and total pipeline weight.

Reducing flanges are especially useful in pipeline systems where flow direction changes from a large pipe size to a smaller pipe size, or where equipment nozzles and pipeline diameters are different.

Reducing Flange Specifications

Additional Specifications:

• Face Types: Raised Face (RF), Flat Face (FF), MFM, TG, Ring Type Joint (RJ)
• Bore Type: Reduced bore, stepped bore, customized bore
• Connection Method: Bolted connection with welding pipe end
• Surface Finish: 125-250 μin Ra for sealing surfaces
• Custom Service: Special bore size, special thickness, special drilling available

  

   

Reducing Flange Materials & Grades

Reducing flanges are available in a wide range of materials. The material should be selected according to pipeline medium, working pressure, temperature, corrosion environment, and project standard.

Carbon steel reducing flanges are commonly used in oil and gas, water treatment, construction, and general industrial systems. Stainless steel reducing flanges are suitable for chemical, food, pharmaceutical, and corrosive environments. Alloy steel and duplex materials can be used for high-temperature, high-pressure, or special working conditions.

Reducing Flange Dimensions

reducing-flange-dimension-drawing

Reducing flanges can be manufactured according to standard dimensions or customer drawings. Key dimensions include outside diameter, flange thickness, reduced bore size, bolt circle diameter, bolt hole diameter, number of bolt holes, and sealing face type.

Advantages of Reducing Flange

Compact Pipeline Connection

Reducing flanges connect different pipe sizes directly, reducing the need for additional reducer fittings.

Lower Installation Cost

Compared with using a standard flange plus reducer, reducing flanges can reduce welding work, material cost, and installation time.

Space-Saving Design

The compact structure is suitable for equipment connections or pipeline systems with limited installation space.

Flexible Bore Customization

The bore can be customized according to pipe size, wall thickness, and project requirements.

Wide Standard Compatibility

Reducing flanges can be produced according to ASME, EN, DIN, JIS, GOST, and custom drawings.

Reliable Sealing Performance

Accurate machining and suitable sealing face treatment help ensure stable flange connection performance.

Applications

Oil and Gas Industry

Used for pipeline size transition in oil transmission, gas pipelines, refinery systems, and offshore platforms.

Petrochemical Plants

Suitable for process pipelines where different pipe diameters need to be connected safely and efficiently.

Power Generation

Used in steam, cooling water, and auxiliary pipeline systems.

Chemical Processing

Stainless steel and alloy reducing flanges are suitable for corrosive media and special working conditions.

Water Treatment

Used in pump stations, water supply systems, drainage pipelines, and treatment facilities.

Industrial Equipment Connection

Suitable for connecting equipment nozzles, valves, pumps, and pipelines with different diameters.

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 Reducing Flange?

A: A reducing flange is a flange used to connect pipes of different diameters. It has a reduced bore to match the smaller pipe size.

Q: Can Reducing Flange replace a reducer fitting?

A: In many pipeline designs, yes. It can replace a standard flange plus reducer combination, saving space and installation cost.

Q: What standards are available?

A: Reducing flanges can be supplied according to ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS, GOST, and custom drawings.

Q: What materials can be used?

A: Common materials include carbon steel, stainless steel, alloy steel, duplex steel, nickel alloy, copper alloy, and titanium.

Q: Can the bore size be customized?

A: Yes. The reduced bore, stepped bore, thickness, drilling pattern, and sealing face can be customized according to project drawings.

Contact Us

Ready to enhance your piping systems with premium Reducing Flange solutions? Contact kevin.zhao@hkflange.com for technical specifications and competitive quotations today.