Top Flange Coupling Supplier in China

We are the premier Flange Coupling Manufacturer in China, delivering high-performance and durable couplings tailored for critical industries like energy, automotive, and construction. Crafted from premium materials and engineered to exact standards, these couplings ensure a perfect fit, secure connections, and reliable operation across diverse, challenging environments.

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Advanced Forging & Machining

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What is a flange coupling?

A flange coupling is a robust mechanical device designed to connect two shafts end-to-end, featuring flanges that are securely bolted together to transmit torque and maintain precise alignment. Widely used in industrial applications such as pumps, compressors, and gearboxes, it ensures efficient power transfer, accommodates misalignment, and withstands heavy loads, making it essential for machinery in sectors like manufacturing and energy.

What is a Flange Coupling Used For?

Power Transmission: Connects rotating shafts in machinery like pumps and motors, ensuring efficient torque transfer.
Alignment Maintenance: Keeps shafts aligned, reducing wear in industrial equipment such as compressors and gearboxes.
Heavy Load Handling: Supports high-torque applications in manufacturing and energy sectors, enhancing durability.
Misalignment Compensation: Accommodates slight shaft misalignments, ensuring smooth operation in diverse industrial settings.

Why Choose Our Flange Coupling?

Our flange couplings, crafted from high-strength steel, offer superior durability and precise alignment for enhanced machinery efficiency. Ideal for energy and automotive industries, they provide robust torque transmission and easy maintenance, minimizing downtime with accessible bolt connections.

Superior Durability

Crafted from high-strength steel, our flange couplings withstand heavy loads and harsh conditions, ensuring long-term reliability.

Precise Alignment

Engineered with exact tolerances, they maintain shaft alignment, reducing wear and enhancing machinery efficiency.

Versatile Applications

Suitable for industries like energy and automotive, offering robust torque transmission across diverse settings.

Easy Maintenance

Designed for simple assembly and disassembly, minimizing downtime with accessible bolt connections.

What is the difference between rigid flange coupling and flexible flange coupling?

Alignment Requirement: Rigid flange couplings demand precise shaft alignment, while flexible flange couplings tolerate slight misalignments.
Torque Transmission: Rigid types transmit higher torque with no flexibility, whereas flexible ones balance torque with shock absorption.
Application Suitability: Rigid couplings suit stable industrial setups, while flexible ones fit dynamic environments like pumps with vibrations.
Maintenance Needs: Rigid couplings require less maintenance for alignment, but flexible ones need periodic checks for wear on flexible elements.

How to choose a flanged coupling adapter?

Assess Load Requirements: Evaluate torque and speed needs for your application, to select a flanged coupling adapter that handles industrial loads effectively.
Check Shaft Compatibility: Ensure the adapter matches shaft sizes and alignment tolerances, accommodating misalignments in pumps or motors.
Consider Material Durability: Choose corrosion-resistant materials like stainless steel for harsh environments, ensuring long-term performance.
Verify Installation Ease: Opt for designs with simple bolt systems, facilitating quick assembly and maintenance in diverse settings.

Explore Our Explore Our Flange Coupling Types

Unprotected-Type Flange Coupling

Unprotected-Type Flange Coupling features an open design with exposed bolts, ideal for simple industrial applications, offering cost-effective torque transmission but requiring safety precautions.

Protected-Type Flange Coupling

Protected-Type Flange Coupling includes a cover over bolts, enhancing safety and durability for heavy-duty use, suitable for manufacturing environments with reduced risk of injury.

Marine-Type Flange Coupling

Metal gaskets are designed for extreme conditions, providing robust sealing in high-pressure, high-temperature environments with superior strength and reliability.

Nominal Pipe Size (NPS)	Outer Diameter (OD) (mm)	Bolt Circle Diameter (BCD) (mm)	Number of Bolts	Bolt Hole Diameter (mm)	Thickness (mm)
1/2	88.9	60.5	4	15.9	9.6
3/4	98.6	69.9	4	15.9	11.2
1	108	79.4	4	15.9	12.7
1 1/2	127	98.6	4	15.9	15.7
2	152.4	120.7	4	19.1	19.1
3	190.5	152.4	4	19.1	23.9
4	228.6	190.5	8	19.1	23.9
6	279.4	241.3	8	22.4	25.4
8	342.9	298.5	8	22.4	28.4
10	406.4	362	12	25.4	30.2
12	482.6	431.8	12	25.4	31.8

The data above is for reference purposes. We manufacture a full range of flanges covering all schedules and pressure classes (150, 300, 600, 900, 1500, 2500) and comply with various international standards including EN 1092-1, DIN, BS, and JIS. For complete technical data sheets or custom requirements, please contact our engineering team.

Key Application Industries of Flange Coupling

Manufacturing Industry

Flange couplings connect machinery like lathes and presses, ensuring efficient torque transfer and alignment for continuous production.

Energy Sector

Used in power plants and turbines, they transmit power reliably, supporting generators and pumps in demanding conditions.

Marine Industry

Applied in ship propulsion systems, these couplings withstand corrosion and vibration, ensuring durable performance at sea.

Automotive Sector

They link drivetrain components, providing stable power delivery in vehicles and heavy equipment under high stress.

Why Choose Our Flange Coupling?

Exceptional Strength: Our flange couplings, made from high-grade steel, endure heavy loads and harsh conditions, ensuring durability.
Precise Engineering: Designed with tight tolerances, they guarantee perfect shaft alignment, reducing wear and boosting machinery efficiency.
Versatile Design: Suitable for industries like energy and marine, they offer robust torque transmission across diverse applications.
Enhanced Safety: Protected-type models feature bolt covers, minimizing injury risks in busy industrial environments.
Low Maintenance: Easy-to-assemble bolt systems and corrosion-resistant materials reduce downtime and upkeep costs.

What Our Client Says

Understand from our clients what they say about doing business with us and the unique value addition we provide.

Our flange coupling has been a reliable asset for our factory! It handled heavy loads flawlessly during a peak season, with easy maintenance. Great product!

Hiroshi Yamada

Production Manager

As a Maintenance Engineer, I’m impressed with the flange coupling’s durability. It aligned our pumps perfectly, reducing downtime. Excellent support too!

Mei Lin

Maintenance Engineer

Comprehensive Guide to Flange Coupling

What are the advantages of flange coupling?

Flange couplings offer high torque transmission, precise alignment, durability under heavy loads, and easy maintenance with bolt connections.

Where are flange couplings used?

Flange couplings are used in manufacturing machinery, energy turbines, marine propulsion, and automotive drivetrains for reliable power transfer.

What are the three components of a flange coupling?

A flange coupling consists of two flanged hubs, a set of bolts, and optional protective covers, ensuring secure shaft connection.

Why would you use a flange coupler?

Use a flange coupler to connect misaligned shafts, transmit high torque, and provide a detachable, durable solution for industrial applications.

How does a flange coupling work?

A flange coupling works by bolting two flanged hubs on aligned shafts, transmitting torque through the connection while allowing easy assembly and disassembly.

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Partner With a Trusted Flange Coupling Manufacturer

Find a dependable connecting partner for your industrial requirements. The trusted company shall specialize in manufacture and assembly of flange coupling. Our rugged couplings are suited for heavy-duty, high-performance applications in the power, manufacturing, and marine industries. Safety comes first and so does cost-cutting with our clever designs. Call us today so that we can discuss your project.

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Frequently Ask Questions

Q: What are the main types of Flange Coupling?

A:Includes unprotected-type with exposed bolts, protected-type with bolt covers, and marine-type with corrosion resistance, each suited for specific industrial applications.

Q: What materials are used in Flange Couplings?

Made from high-strength steel, stainless steel, or cast iron, offering durability and corrosion resistance for harsh environments.

Q: How does a Flange Coupling work?

A: It works by bolting two flanged hubs on aligned shafts, transmitting torque through the connection while allowing easy assembly, disassembly, and slight misalignment compensation.

Q: What are the advantages of Flange Coupling?

A:Offers high torque capacity, precise alignment, durability under heavy loads, and easy maintenance with bolt systems, enhancing machinery efficiency.

Q: Where are Flange Couplings used?

A: Used in manufacturing machinery, energy turbines, marine propulsion, and automotive drivetrains for reliable power transfer in diverse industrial settings.

Q: How do you choose the right Flange Coupling?

A: Assess torque needs, shaft compatibility, material durability, and installation ease, to select the ideal coupling for your application.

Q: What maintenance is required for Flange Couplings?

A: Regular inspection of bolts for tightness, lubrication of moving parts, and checking for wear or corrosion ensure optimal performance, extending service life.

Q: How do Flange Couplings handle misalignment?

A: Flexible flange couplings absorb slight angular or parallel misalignments with elastic elements, while rigid types require precise alignment, enhancing reliability in dynamic conditions.

Top Flange Coupling Supplier in China

What is a flange coupling?

What is a Flange Coupling Used For?

Why Choose Our Flange Coupling?

Superior Durability

Precise Alignment

Versatile Applications

Easy Maintenance

What is the difference between rigid flange coupling and flexible flange coupling?

How to choose a flanged coupling adapter?

Explore Our Explore Our Flange Coupling Types

Unprotected-Type Flange Coupling

Protected-Type Flange Coupling

Marine-Type Flange Coupling

Flange Coupling Size Specifications Chart: ASME B16.5 Class 150

Key Application Industries of Flange Coupling

Manufacturing Industry

Energy Sector

Marine Industry

Automotive Sector

Why Choose Our Flange Coupling?

What Our Client Says

Comprehensive Guide to Flange Coupling

What are the advantages of flange coupling?

Where are flange couplings used?

What are the three components of a flange coupling?

Why would you use a flange coupler?

How does a flange coupling work?

Latest Blog Posts

Partner With a Trusted Flange Coupling Manufacturer

Frequently Ask Questions

Q: What are the main types of Flange Coupling?

Q: What materials are used in Flange Couplings?

Q: How does a Flange Coupling work?

Q: What are the advantages of Flange Coupling?

Q: Where are Flange Couplings used?

Q: How do you choose the right Flange Coupling?

Q: What maintenance is required for Flange Couplings?

Q: How do Flange Couplings handle misalignment?

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