Hydraulic Flange Supplier in China

High-stress tolerance
Flexible connections
Easy installation and maintenance
Can be used for mobile equipment

Product List

Our extensive hydraulic flange fittings product line ensures you’ll find the perfect solution for any hydraulic application. In addition, we provide comprehensive customization services, allowing you to tailor product materials, sizes, finishes, logos, and packaging to your specific requirements. Whether you need standard components or bespoke solutions, Topa is committed to delivering high-quality products that meet and exceed your expectations.

Products Video

In this video, we showcase a wide range of hydraulic flange fittings designed for various industrial applications. Our flanges are engineered to meet rigorous standards of performance, durability, and ease of use. Whether you’re working in construction, agriculture, or manufacturing, you’ll find the perfect solution for your hydraulic systems.

The video highlights our most popular flange types, including standard and custom configurations, that are ideal for both low and high-pressure environments. We emphasize the flexibility of our products in terms of material selection, size, and design, ensuring they fit seamlessly into your existing systems.

Watch the video to see the full range of hydraulic flange fittings in action. If you have any questions or need assistance with a custom order, don’t hesitate to contact us. Let Topa be your trusted partner in hydraulic solutions!

Application

Topa’s hydraulic flange fittings are designed to deliver exceptional performance across a wide array of industries. Whether you’re in construction, agriculture, automotive, or manufacturing, our flanges are built to meet the demands of high-pressure, heavy-duty systems. With customizable options to suit various operational needs, Topa hydraulic flanges provide the reliability, flexibility, and efficiency necessary to optimize your equipment’s performance.

Get Your Custom Hydraulic Flanges Today!

Ready to experience the quality and reliability of Topa’s hydraulic flanges? Contact us now for a consultation and a competitive quote!

Hydraulic Flange Adapters Features

Hydraulic flange adapters are essential components in modern hydraulic systems, providing a reliable and efficient means of connecting various hydraulic parts. Designed to withstand high pressures and extreme environments, these adapters ensure secure, leak-free connections between hoses, fittings, and machinery. With their customizable features, durable materials, and advanced sealing mechanisms, hydraulic flange adapters play a critical role in maintaining the integrity and safety of hydraulic systems across various industries.

Basic Design

Hydraulic flange adapters are designed to provide a reliable and leak-free connection between hydraulic components. They typically feature one end with a flat face that includes a groove to house an O-ring for a secure seal. The other end may have threads (such as 37° flare or ORFS thread) or be designed to connect to hydraulic hoses or flanges. The design ensures compatibility with a wide range of hydraulic systems and is customizable to accommodate various system specifications.

The adapters are designed with precision to ensure a tight fit, preventing fluid leakage even under high-pressure conditions. The flat face with an O-ring groove enhances the sealing performance, especially when used with flange clamps, ensuring optimal connection integrity.

Sealing Design

The sealing system of hydraulic flange adapters is one of its most critical features. They commonly use O-rings made from materials like rubber, fluororubber, or PTFE to provide a tight, reliable seal. The O-ring is placed in a groove on the flat face of the adapter, effectively preventing fluid leakage in the connection.

In some cases, the sealing system may also include PTFE seals or metal sealing rings for high-pressure and high-temperature applications. These materials ensure that the adapter performs well in extreme conditions and can withstand exposure to chemicals, heat, and high pressures without degradation.

Pressure

Hydraulic flange adapters are designed to withstand high pressures, ensuring they can handle the demanding environments typically found in hydraulic systems. The pressure rating depends on the material used, the size of the adapter, and the type of sealing system. Most hydraulic flange adapters are engineered to handle pressures ranging from 3,000 psi to over 9,000 psi, depending on the application.

The robust design of the adapter ensures that it can maintain a secure connection even under fluctuating or high-pressure conditions, which are common in hydraulic circuits. Their ability to perform under these pressures makes them essential for industries such as construction, manufacturing, and chemical processing, where hydraulic systems operate under intense stress.

Material

Hydraulic flange adapters are made from materials selected for their strength, corrosion resistance, and ability to withstand harsh environments. Common materials include carbon steel, which offers excellent strength and durability for general applications, and stainless steel, which provides superior corrosion resistance for use in more demanding environments like marine and chemical industries.

Other materials like aluminum alloy are used in lighter applications where weight is a concern, and brass may be used in low-pressure systems for its good corrosion resistance and moderate strength. The choice of material ensures that the adapter can meet the specific requirements of different hydraulic systems and environments, ensuring long-lasting performance.

Hydraulic Flange Basics

Hydraulic flanges play an essential role in ensuring efficient and reliable performance in hydraulic systems. With their ability to provide leak-free, secure connections, they contribute to maintaining the integrity of the entire hydraulic circuit, helping to prevent system failures due to leakage or pressure loss. Their design and working principles make them a critical component in both industrial and commercial hydraulic applications.

Appearance

A hydraulic flange is a critical component used in hydraulic systems to connect hoses, pipes, or tubes to various equipment such as pumps, valves, and cylinders. It typically consists of a flat, circular disc with holes for bolts or screws to fasten the flange to another mating part. The flange may come in different sizes and materials, such as steel, stainless steel, or carbon steel, depending on the specific application and pressure requirements. Hydraulic flanges are often designed to have a smooth, flat surface to ensure a tight seal and prevent leaks.

Flanges are commonly available in several styles, including:

Fixed Flanges: Bolted directly to a system without rotation.

Rotatable Flanges: Allow rotation for easier alignment or flexibility in assembly.

Fixed/Rotatable Flange Connections: Designed for specific system requirements.

Working Principle

The hydraulic flange is primarily used to create a secure and leak-proof connection between hydraulic components. Its working principle is based on the use of high pressure to generate a tight seal, allowing fluid to flow without leakage in the hydraulic system.

Connection: The hydraulic flange is installed on the end of a hydraulic pipe or hose. The flange is positioned against another flange on a mating part, such as a pump or valve, and is secured with bolts or nuts to ensure a firm connection.

Sealing: A gasket or O-ring is typically placed between the two flange faces to provide a tight seal. The high pressure within the hydraulic system presses against the flange, ensuring that the seal is maintained and preventing leakage.

Pressure Transfer: When the hydraulic fluid flows through the system, the flange helps transfer the fluid under high pressure to other components, such as actuators or cylinders. The robust design of the flange ensures that it can withstand the stress and pressure associated with high-performance hydraulic systems.

Reach Out to Topa for Expert Support

Have questions or need advice on the right hydraulic flange for your project? Let us help you find the perfect solution tailored to your needs. Get in touch with us today!

Types of Hydraulic Hose Adapter

Hydraulic flanges come in various types, each designed to fulfill specific requirements for hydraulic systems. Here are the main classifications of hydraulic flanges:

Hydraulic Flange Adapter

The hydraulic flange adapter is a special fitting assembly used to connect hydraulic lines to a system. It is an intermediate piece between different flange types or between flanges and other components such as valves, pumps, or cylinders.

Uncut Hydraulic Flange

Uncut hydraulic flanges are typically used in applications where the flange needs to be modified or adjusted after installation. They are supplied without pre-cut holes, allowing the installer to drill or cut holes as needed for bolt placement.

Split Hydraulic Flange

Split flanges consist of two parts that can be assembled around the pipe or hose. They are used in cases where easy assembly and disassembly are required, or when the pipe cannot be removed for flange installation. The split design makes it easier to service or modify the hydraulic system.

Elbow 90° Flange

An elbow 90° hydraulic flange is designed to change the direction of fluid flow by 90 degrees. It combines a flange connection with a 90° elbow to redirect hydraulic fluid within a system.

Threaded Hydraulic Flange

A threaded hydraulic flange is equipped with internal or external threads that allow it to be screwed into place, creating a secure, threaded connection between hydraulic components. This type of flange is used in systems where welding or bolting is not practical.

Raised-Face Flanges

A raised-face hydraulic flange has a raised portion around the bolt holes where the flange meets the sealing surface of the mating component. This design helps to concentrate pressure at the sealing point, creating a more reliable seal and preventing leakage under high-pressure conditions.

Advantages of Hydraulic Flanges

Hydraulic flange connections are widely used in demanding mobile equipment applications due to their numerous advantages. Here’s an overview of the key benefits:

High Pressure, Shock, and Vibration Resistance

Hydraulic flange connections are well-suited for high-pressure applications, making them ideal for mobile equipment that experiences extreme pressures and operating conditions. The robust design can withstand shock and vibration, especially in larger sizes, ensuring a reliable connection under demanding conditions.

Flexible and Adapter-Free Connections

Flange connections allow easy integration between hoses and tubes/pipes without the need for additional adapters. This flexibility makes it easier to design and assemble hydraulic systems where varying sizes and configurations are needed, simplifying installation and reducing component complexity.

Easy Connection Between Rigid Lines

Flanges provide a simple and reliable method for connecting rigid lines, such as tube-to-tube or pipe-to-pipe connections. This feature aids in both installation and maintenance, making the system easier to assemble and disassemble when repairs or upgrades are needed.

High Resistance to Loosening

In severe hydraulic service conditions, flange connections offer exceptional resistance to loosening, even in environments subject to high vibration, shock, or pressure fluctuations. This helps to maintain the integrity of the hydraulic system over time, reducing the risk of leaks and system failures.

Ease of Assembly with Reasonable Torque

Flange connections can be assembled with moderate assembly torques, even in larger sizes. This makes the installation process more straightforward and less labor-intensive, reducing the risk of over-tightening or damaging the components.

Assembly in Tight Spaces

One of the most significant advantages of hydraulic flanges is their ability to be assembled in confined or hard-to-reach spaces. Unlike traditional threaded connections, flanges can be installed where wrench swing clearance is limited, making them ideal for compact systems or mobile equipment where space is a premium.

Quality, Reliability, and Innovation

Don’t settle for less when it comes to hydraulic flanges. With Topa, you’re choosing one of the best manufacturers in China.

Choose Topa

More Than Just a Hydraulic Fittings Manufacturer

At Topa, we are committed to delivering high-quality hydraulic solutions tailored to the specific needs of our clients. With over a decade of expertise in manufacturing hydraulic fittings, hoses, and accessories, we pride ourselves on providing customizable products that ensure optimal performance and durability. Our dedication to innovation, exceptional customer service, and eco-friendly practices have earned us the trust of clients worldwide. Whether you’re looking for custom hydraulic solutions or reliable, efficient components, Topa is your partner in ensuring the success of your hydraulic systems.

Customizable Hydraulic Solutions

We offer tailored hydraulic fittings and hoses to meet specific client needs.

High-Quality Manufacturing

Our products are made using advanced production lines and materials.

Flexible Design Options

We provide customizable sizes, materials, and logos for all our products.

Competitive Pricing and Discount

We offer cost-effective solutions without compromising on quality.

Fast Global Shipping

We export to multiple regions including North America, Europe, Japan, and Singapore.

Experienced Support Team

Our skilled team provides professional technical support for product selection and installation.

Quick Turnaround Time

We ensure quick turnaround times for bulk orders and urgent requirements for everyone.

Comprehensive Testing

All products undergo rigorous quality control to ensure reliability and durability.

Eco-Friendly Materials

We use lead-free, environmentally friendly materials for all our products.

Top After-Sales Service

We offer ongoing support and assistance with installation, maintenance, and troubleshooting.

Why Choose Us

As one of China’s leading manufacturers of hydraulic flanges, Topa stands out for its commitment to quality, precision, and innovation. With years of experience in the hydraulic industry, we specialize in producing high-performance hydraulic flanges that meet international standards and exceed customer expectations.

Our hydraulic flanges are designed to withstand the most demanding applications, offering superior resistance to pressure, shock, and vibration. Whether it’s for mobile equipment or industrial machinery, Topa’s flanges are engineered for reliability and durability, ensuring long-lasting performance even in the harshest environments.

At Topa, we take pride in our advanced manufacturing capabilities, which include state-of-the-art CNC machines and a dedicated team of skilled engineers. Our flanges come in a variety of materials, sizes, and configurations, and are fully customizable to meet the unique requirements of each client. From standard designs to specialized solutions, we deliver hydraulic flanges that provide a perfect fit and optimal functionality.

By choosing Topa, you partner with one of the best hydraulic flange manufacturers in China—reliable, cost-effective, and committed to delivering excellence in every product we supply.

FAQ

What is a hydraulic flange?

Hydraulic flange connections are used for the most demanding applications, as they are often suitable for high pressures, shocks and vibrations and in demanding environments such as larger sizes.

What is an SAE flange?

They are a range of high-pressure hydraulic flanges produced to SAE J518 standards.

What are the types of flanges?

In general, flanges are threaded or welded. The two flanges are joined together by gaskets and bolts to stop leaking. There are a number of flanges, such as socket welding flanges, socket flanges, blind flanges and butt welding flanges. In addition, there are some special flanges, such as rotating flanges, reducer flanges, etc.

What are flange gaskets?

The function of the flange gasket is to seal the two flanges. When the flanges are connected, the torque compression of the bolts causes the gasket to form a seal between the two flanges, preventing leakage of liquids and gases.Under different operating conditions, temperature and pressure ratings are different .

How do you identify flanges ?

B.C. is one of the most useful measurements to identifyin flanges. Flanges can also be distinguished by outer diameter, inner diameter, bolt hole diameter, bolt circle diameter and the number of bolt holes.

Why hydraulic lines have square flanges?

Topa flanges are used in hydraulic oil and steam systems to ensure the smooth flow of fluids through stainless steel and hydraulic pipelines.

Why do we use flange?

Hydraulic flanges can be used to connect pipes, fittings and other systems. Flanges are bolted together and sealed by gaskets for ease of use.

How do the flanges form a seal?

Metal-to-metal flanges are sealed by the clamping force provided by the clamp tightening the bolts. The flange with an O-ring is sealed by tightly compressing the O-ring and the metal plane on the other side together.

What are the materials of flangs?

Stainless steel,carbon steel and ductile iron are commonly used in flange production.

The most common material used in pipe flanges is forged carbon steel with machined faces. There also exits other materials ,like stainless steel, aluminum,bronze, brass, etc.

What is minimum order of hydraulic flange ?

If in stock, it coulde be 20 pieces of each size, if not in stock, we need to communicate with you.