SAE Hydraulic Fitting Manufacturer in China

❖ Leak-free connection

❖ Versatile application

❖ Easy to install

❖ Customizable types

Product List

At Topa, we offer a comprehensive range of SAE ORB hydraulic fittings, covering all types and sizes to meet the diverse needs of our customers. Whether you’re looking for standard fittings or specialized configurations, we have the right solutions to suit your hydraulic system requirements. If you can’t find the exact product you need in our catalog, don’t worry! We also offer custom manufacturing options, where we can tailor the dimensions, materials, and designs to meet your specific needs. Simply send us an inquiry, and our team will work closely with you to create the perfect solution for your hydraulic systems.

SAE ORB Hydraulic Fitting Video

In this video, Topa showcases a wide range of SAE ORB Hydraulic Fittings, highlighting the different types and sizes we offer to meet the needs of various industries. From straight fittings to elbows and tees, you’ll get a close-up look at the superior craftsmanship and precision that goes into each of our products.

We invite you to click on the video and explore how Topa’s ORB fittings can improve the efficiency and reliability of your hydraulic systems. Whether you need standard options or custom solutions, you’ll find the ideal product to suit your needs.

Don’t hesitate to send us an inquiry after watching the video. Our team is ready to provide you with detailed information, personalized solutions, and quick responses to help you get the exact hydraulic fittings you need.

Application

Each of these industries relies on the reliability and performance of SAE ORB hydraulic fittings to ensure their equipment operates smoothly, and Topa provides quality and custom solutions to meet those needs.

Get in Touch Today!

Ready to find the perfect SAE ORB fitting for your hydraulic system? Contact us now for a custom quote and let Topa provide the best solution for your needs.

Characteristics of ORB Hydraulic Fittings

Thread Design

ORB (SAE Straight Thread O-ring Boss) fittings are defined by their straight UNF (Unified Thread Standard) male thread and straight female thread. The male thread features a groove designed specifically to hold the O-ring, which is a crucial element for the sealing mechanism. The female port is equipped with a machined surface that ensures a smooth and flat surface for the O-ring to seat. This surface also includes a chamfer, a beveled edge where the O-ring sits and is compressed during installation.

The straight thread design distinguishes ORB fittings from other hydraulic connection systems, such as flare or NPT threads, which rely on angled surfaces for sealing. This straight thread and O-ring system allows ORB fittings to achieve superior sealing performance by ensuring that the O-ring is evenly compressed, which helps prevent leaks in medium and high-pressure systems.

O-Ring Seal

The most critical feature of ORB fittings is their O-ring sealing system. When the male and female parts of the fitting are connected, the O-ring, typically made from Buna-N or Viton rubber, is compressed into the chamfered seat on the female part. The O-ring acts as a highly effective barrier, ensuring that the joint remains sealed and preventing fluid leaks.

The O-ring seal provides several key benefits:

Leak-tight performance: The O-ring is compressed into the chamfer, creating a robust seal that withstands the pressures of hydraulic systems.

Compensates for dimensional variations: The O-ring material is flexible enough to compensate for small dimensional variations in the male and female parts of the fitting, ensuring an effective seal even in less-than-perfect conditions.

Resistance to wear and chemicals: O-rings made from Buna-N or Viton are highly resistant to wear, heat, and chemical degradation, which makes ORB fittings suitable for demanding applications in various industries like construction, agriculture, and manufacturing.

Material Options

ORB fittings are typically manufactured from high-strength materials to ensure durability and reliability under pressure. The most common materials used in the production of ORB fittings include:

Carbon Steel: Known for its strength and durability, carbon steel is a cost-effective option for applications where high pressure and wear resistance are important. It is often used in general industrial applications.

Nickel-Plated Carbon Steel: For added corrosion resistance, nickel-plated carbon steel is frequently used in environments where the fitting is exposed to moisture or other corrosive elements. The plating provides an additional layer of protection against rust and corrosion.

Stainless Steel: Stainless steel is the material of choice for applications in highly corrosive environments, such as chemical processing, marine, or food industries. Stainless steel ORB fittings offer exceptional strength, corrosion resistance, and longevity.

Adjustable and Non-Adjustable Fittings

ORB fittings are available in two key variants: adjustable and non-adjustable. These two types offer different installation and operational benefits, making ORB fittings versatile and adaptable to various hydraulic systems.

Adjustable Fittings: Adjustable ORB fittings, such as elbows and tees, allow for rotational movement after installation, which can be useful when a precise orientation of the fitting is needed. These fittings can be installed in a fixed direction, and after installation, they allow for adjustments to ensure proper alignment or to optimize the fluid flow. This adjustability is especially useful in applications where space constraints or positioning requirements may change over time.

Non-Adjustable Fittings: Non-adjustable ORB fittings, such as plugs and straight connectors, are designed to fit securely into a port without the need for realignment after installation. Once installed, these fittings are fixed in position, making them ideal for use in applications where precise, non-rotating connections are required.

Operating Principle

The operating principle of ORB fittings revolves around their ability to create a high-pressure seal through the compression of the O-ring. The basic steps involved in their operation are as follows:

Thread Engagement

The male part of the ORB fitting is threaded with straight UNF threads, which match the female port’s straight thread. This threading ensures the secure connection of the fitting and provides alignment for the O-ring to seat properly.

O-Ring Compression

As the male and female components are connected, the O-ring seated in the male thread is compressed into the chamfer of the female port. This compression of the O-ring creates a tight seal, preventing leakage of hydraulic fluids. The O-ring compensates for any minor dimensional variations between the fitting and port, ensuring an effective seal even in less-than-perfect conditions.

Pressure and Fluid Flow

Once connected, ORB fittings allow hydraulic fluid to flow through the system while maintaining a high level of sealing performance, even under medium and high-pressure conditions. The O-ring’s ability to withstand pressure without leakage is what makes ORB fittings especially suited for demanding hydraulic applications.

Leak-Proof Design

The O-ring seal provides leak resistance by filling the gap between the two components and ensuring a stable, durable connection. This makes ORB fittings ideal for systems requiring reliable, long-term sealing, such as in construction machinery, agricultural equipment, and transportation systems.

Advantages of Hydraulic SAE ORB Fittings

Leak-Proof Sealing Performance

ORB fittings utilize an O-ring sealing system, which creates a tight, leak-proof connection. The O-ring is compressed into a machined chamfer when the male and female components are mated, ensuring a reliable seal even in high-pressure hydraulic systems.

Reusability and Easy Maintenance

ORB fittings are designed to be reusable. The O-ring can be replaced without having to replace the entire fitting, making maintenance more cost-effective. This reusability reduces downtime and long-term maintenance costs while maintaining the performance of the hydraulic system over time.

Versatility in Applications

ORB fittings come in a wide range of configurations, including unions, tees, elbows, and plugs. This versatility makes ORB fittings suitable for a broad array of applications in various industries, including construction, agriculture, automotive, and industrial machinery.

Easy Installation

The straight thread design of ORB fittings simplifies installation compared to other types of fittings, such as flare fittings. Since the O-ring is the primary sealing component and not the threads, there is less concern about over-tightening or misalignment, making installation faster and easier.

High Pressure and Durability

ORB fittings are made from high-strength materials like carbon steel, nickel-plated carbon steel, and stainless steel. The robust design ensures that ORB fittings can handle both medium and high-pressure hydraulic systems without compromising the integrity of the seal or the fitting’s performance.

Corrosion Resistance

ORB fittings provide superior corrosion resistance in harsh environments. This makes ORB fittings highly effective in applications where exposure to moisture, chemicals, or high humidity is common, ensuring a longer lifespan and reliable performance even in challenging conditions.

Avoid Common Pitfalls

With more than 20 years of experience in the industry, Topa understands the problems that our customers often encounter when choosing hydraulic couplings. We not only offer you standardized products, but also individual solutions tailored to your needs, helping you to avoid all the common difficulties of installation and use. By working with Topa, you can avoid common pitfalls and ensure the efficient and safe operation of your hydraulic system.

UNF? UNC?

Many customers tend to confuse UNF (Unified Fine Thread) and UNC (Unified Course Thread) thread standards when selecting ORB hydraulic fittings. Although these two thread types are similar in appearance, the threads have different levels of fineness and applicability. If a mismatched thread is used, it may result in an unstable installation or even leakage.

Topa's Solution

Topa ensures that all ORB hydraulic fittings are supplied with standard UNF threads, with clear product specifications and thread type identification according to customer requirements. Our technical team will also help to identify the appropriate thread standard according to your requirements to avoid any misuse, and every Topa product is rigorously sized and thread-checked to ensure that every fitting you purchase is a perfect fit.

Adjustable or Non-adjustable

Many customers are unsure whether to choose adjustable or non-adjustable ORB fittings when selecting hydraulic fittings. Adjustable fittings are suitable for applications that require reorientation after installation (e.g. elbows, tees, etc.), while non-adjustable fittings are used for fixed-direction connections. Choosing the wrong type can lead to difficult installation or inefficient applications.

Topa's Solution

Topa offers both adjustable and non-adjustable types of ORB hydraulic fittings to ensure you choose the right product for your needs. If you are not sure which coupling is more suitable for your application, Topa's team of professionals will provide you with technical advice to help you make the right choice. We can also provide customized services according to specific needs to ensure hassle-free installation of the joints after installation.

O-ring Issues

O-ring is the most critical sealing component in ORB fittings, but choosing the wrong material or installing it improperly can lead to seal failure, oil leakage or damage to the fitting. Common customer problems include O-rings made of materials that are not suitable for the operating environment (e.g. temperature or chemical media), or O-rings that are cut or crushed during installation, resulting in a poor seal.

Topa's Solution

Topa ensures that every ORB fitting is equipped with industry-standard Buna-N or Viton O-rings, which have excellent compression, heat, and chemical resistance properties and are adapted to a wide range of operating environments. In addition, we strictly control the installation quality of the O-rings to ensure that they are properly installed during the coupling production process to avoid any damage or oil leakage problems.

Request a Sample Now!

Not sure if our SAE ORB fittings are the right fit for your project? Request a free sample today and experience the quality and precision of Topa's fittings firsthand!

How to Choose the Right Size of SAE ORB Fitting

Choosing the right size of SAE ORB (Straight Thread O-ring Boss) fitting is crucial to ensuring a leak-free, reliable connection in your hydraulic system. Selecting the correct size involves considering several key factors, including the size of the connecting ports, the pressure requirements, and the compatibility with your system. Here’s a step-by-step guide on how to choose the right size of SAE ORB fitting for your application:

Determine the Port Size

The first step in selecting the correct ORB fitting size is to identify the port size in your hydraulic system. SAE ORB fittings have a straight thread design, and the fitting must match the port threads for a proper seal.

Standard Thread Size: SAE ORB fittings use UNF threads (Unified Thread Standard), and the thread size is often specified by its major diameter (Dmaj) and thread pitch (TPI). For example, common ORB sizes may include 1/4″, 3/8″, 1/2″, 3/4″, 1″, etc.

Port Thread Size Matching: Check the specifications for the port you are connecting to and ensure the ORB fitting’s male thread matches the female port threads. Common ORB sizes include 5/16″-18, 3/8″-18, 1/2″-14, etc.

Select the Right Thread Type and Pitch

SAE ORB fittings have a straight thread design with a specified pitch. The thread pitch refers to the distance between threads and can be measured in threads per inch (TPI). It’s important to match the correct thread type and pitch between the fitting and port to ensure the fitting is securely installed.

Thread Type: SAE ORB fittings use straight UNF threads (Unified Fine Threads). Ensure the fitting’s threads match the standard UNF thread specifications for the port.

Pitch: Thread pitch is usually specified in threads per inch (TPI). For example, a 3/8″ SAE ORB fitting might have a 18 TPI pitch, while a 1/2″ fitting could have a 14 TPI pitch.

Consult the technical data sheet for both the fitting and the port to ensure compatibility in terms of thread size, pitch, and type.

Consider the Pressure Rating

Different sizes of ORB fittings are designed to withstand varying levels of pressure. The size of the fitting can impact its pressure capacity, and it’s essential to select a fitting that is rated for the required pressure in your hydraulic system.

Smaller Fittings: Smaller ORB fittings (e.g., 1/4″, 3/8″) typically handle lower pressures, while larger fittings (e.g., 1″ or 1.5″) are designed to withstand higher pressures.

System Pressure: Check the pressure requirements of your hydraulic system and select an ORB fitting that has the appropriate pressure rating. Make sure the fitting size and material can handle the peak pressure your system will operate under.

Ensure Compatibility with Hose or Tubing Size

The ORB fitting size should also be compatible with the hose or tubing size being used in the system. The fitting needs to properly fit the inner diameter (ID) of the hose or tubing to maintain optimal fluid flow and ensure a secure connection.

Hose Size: For example, if you are using a 1/2″ hose, choose a 1/2″ ORB fitting that matches the hose’s ID.

Tubing Size: For tubing connections, ensure the fitting matches the OD of the tubing and that the hose or tube is rated for the same pressure as the fitting.

Account for Material and Application Conditions

The material of the ORB fitting can also affect the size selection based on the conditions of your application. Some factors to consider include:

Corrosion Resistance: If your hydraulic system operates in corrosive environments (e.g., salt water or chemicals), consider using stainless steel ORB fittings for better corrosion resistance.

Temperature Tolerance: Make sure the fitting material can withstand the operating temperature of your system. Materials like carbon steel, nickel-plated steel, and stainless steel are chosen for their resistance to high pressures and varying temperatures.

Choosing the right size of SAE ORB fitting involves understanding the port size, thread specifications, pressure requirements, and material compatibility with the application. By carefully matching the fitting’s dimensions and specifications to your system’s needs, you can ensure reliable, leak-free performance and long-term durability of your hydraulic connections. Always consult manufacturer datasheets or fitting size charts for accurate sizing and performance details.

Product Machining Process

Topa’s SAE ORB hydraulic fittings are CNC precision-machined, cut, punched, and turned on high-precision equipment. Every detail is executed in strict accordance with international standards to ensure perfect sealing performance on every contact surface of the product. During the machining process, we also apply surface treatment to improve the corrosion resistance and aesthetics of the product.

Cutting

CNC Machining

Threading

Polish

Crimping

Packing

Quality Control

At Topa, we adhere to strict quality control standards to ensure that every SAE ORB Hydraulic Fitting we produce meets the highest levels of performance, durability, and reliability. Our quality control (QC) process involves multiple stages, from raw material inspection to final product testing, guaranteeing that each fitting performs flawlessly in its intended application.

SAE hydraulic fitting china supplier testing

SAE hydraulic fitting China supplier quality check

SAE hydraulic fitting China manufacturer Pulse test

SAE hydraulic fitting China factory Size Inspection

SAE hydraulic fitting China supplier check

SAE hydraulic fitting china wholsale check one by one

Start Your Order Today!

Don’t wait to optimize your hydraulic system with high-quality SAE ORB fittings. Fill out our inquiry form and start your order now for fast, reliable delivery!

Choose Topa

More Than Just a Hydraulic Fittings Manufacturer

At Topa, we understand that high-quality hydraulic fittings are critical to the success of your operations. As a leading manufacturer, we specialize in providing durable, customizable solutions tailored to meet the unique needs of each customer. Whether you require precision-engineered SAE ORB fittings, flexible lead times, or expert technical support, Topa is committed to delivering exceptional products and services that exceed expectations.

Custom Solutions

We offer tailored hydraulic fittings to meet your specific requirements, including size, material, and design.

Global Shipping

Topa ensures efficient, reliable shipping worldwide, delivering your products on time, no matter your location.

Fast Response Time

Our customer service team provides quick responses to all inquiries, ensuring you get the support you need.

High-Quality Materials

We use only the highest-quality materials, ensuring that every fitting meets stringent standards for durability.

Competitive Pricing

Topa offers cost-effective solutions without compromising on quality, providing excellent value.

Technical Support

Our team of experts is available to offer guidance and troubleshooting, ensuring your fittings perform flawlessly.

Flexible Lead Times

We understand the importance of deadlines, and our flexible lead times allow us to meet your project schedules.

After-Sales Service

Topa is committed to your satisfaction, offering after-sales support to resolve any issues.

Your Reliable SAE Fittings Manufacturer

At Topa, we pride ourselves on being a trusted and reliable manufacturer of SAE hydraulic fittings. With over a decade of experience in the industry, we have built a reputation for delivering high-quality, precision-engineered fittings designed to meet the most demanding hydraulic applications. Our commitment to excellence is reflected in every product we create, ensuring our clients receive durable, leak-proof solutions that keep their systems running smoothly.

Our manufacturing facility is equipped with state-of-the-art CNC machines and advanced production lines, which enable us to produce a wide range of SAE ORB fittings with unmatched accuracy. We offer customizable options to meet the specific needs of each client, from variations in size, material, and design, to custom packaging and branding. Whether you’re working on high-pressure systems or specialized machinery, Topa has the expertise to provide the perfect fitting for your project.

At Topa, we understand that reliability is paramount. That’s why we conduct rigorous quality checks at every stage of production, from raw material inspection to final testing. We work closely with our customers to ensure that every fitting we manufacture meets their exact specifications, delivering products that perform optimally even in the most challenging conditions. With Topa as your supplier, you can trust that you’re getting the best fittings for the job—on time, every time.

FAQ

What are SAE ORB fittings?

SAE ORB (Straight Thread O-Ring Boss) fittings are hydraulic components used for connecting pipes or tubes in medium- to high-pressure systems. They feature a straight thread and an O-ring to create a leak-proof seal between the fitting and the port.

How do SAE ORB fittings seal?

The seal is created when the O-ring, placed in the male fitting’s groove, is compressed into the chamfer of the female port. This compression provides a tight, leak-proof seal under pressure.

What materials are SAE ORB fittings made from?

SAE ORB fittings are commonly made from carbon steel, stainless steel, and nickel-plated steel. These materials provide strength, corrosion resistance, and durability in high-pressure environments.

Are SAE ORB fittings reusable?

Yes, SAE ORB fittings are reusable. The O-ring can be replaced without needing to replace the entire fitting, which makes them a cost-effective and sustainable solution in long-term applications.

What sizes are available for SAE ORB fittings?

SAE ORB fittings come in a variety of sizes, commonly ranging from 1/4″ to 2″. The sizing corresponds to the inner diameter (ID) of the hose or tubing being used, and the threads follow the UNF (Unified Fine Thread) standard.

How do I install SAE ORB fittings?

To install SAE ORB fittings, align the threads and the O-ring with the corresponding port. Tighten the fitting to the correct torque specification to compress the O-ring and create a leak-tight seal. Avoid overtightening, as it can damage the O-ring or fitting.

What’s the difference between SAE ORB fittings and NPT fittings?

The primary difference is in the sealing mechanism. SAE ORB fittings use an O-ring for sealing, whereas NPT fittings use a tapered thread to form a seal. SAE ORB fittings are often preferred for high-pressure systems due to their superior sealing performance.

Can SAE ORB fittings be used in high-pressure applications?

Yes, SAE ORB fittings are ideal for medium- to high-pressure hydraulic systems. They are designed to handle pressures of up to 5,000 PSI, depending on the fitting size and material used.

What type of O-ring is used in SAE ORB fittings?

The O-ring in SAE ORB fittings is typically made from Buna-N or Viton rubber, which provides excellent resistance to wear, heat, and chemical exposure. The choice of material depends on the fluid and temperature conditions of the application.

How do I choose the right SAE ORB fitting?

To choose the right SAE ORB fitting, ensure the thread size and material match your system’s requirements. Consider the pressure, temperature, and fluid compatibility. If in doubt, consult with a manufacturer or supplier like Topa to ensure compatibility with your hydraulic system.

SAE Hydraulic Fitting Manufacturer in China

❖ Leak-free connection

❖ Versatile application

❖ Easy to install

❖ Customizable types

Product List

6400 SAE Hydraulic Fitting

6401 SAE Hydraulic Fitting

6402 SAE Hydraulic Fitting

6404 SAE Hydraulic Fitting

6405 SAE Hydraulic Fitting

6407 SAE Hydraulic Fitting

6408 SAE Hydraulic Fitting

6410 SAE Hydraulic Fitting

6425 SAE Hydraulic Fitting

6801 SAE Hydraulic Fitting

6801LL SAE Hydraulic Fitting

6802 SAE Hydraulic Fitting

6803 SAE Hydraulic Fitting

6804 SAE Hydraulic Fitting

6805 SAE Hydraulic Fitting

6807 SAE Hydraulic Fitting

6835 SAE Hydraulic Fitting

SAE ORB Hydraulic Fitting Video

Application

Agriculture

Construction

Transportation

Get in Touch Today!

Ready to find the perfect SAE ORB fitting for your hydraulic system? Contact us now for a custom quote and let Topa provide the best solution for your needs.

Characteristics of ORB Hydraulic Fittings

Thread Design

O-Ring Seal

Material Options

Adjustable and Non-Adjustable Fittings

Operating Principle

Thread Engagement

O-Ring Compression

Pressure and Fluid Flow

Leak-Proof Design

Advantages of Hydraulic SAE ORB Fittings

Leak-Proof Sealing Performance

Reusability and Easy Maintenance

Versatility in Applications

Easy Installation

High Pressure and Durability

Corrosion Resistance

Avoid Common Pitfalls

UNF? UNC?

Topa's Solution

Adjustable or Non-adjustable

Topa's Solution

O-ring Issues

Topa's Solution

Request a Sample Now!

Not sure if our SAE ORB fittings are the right fit for your project? Request a free sample today and experience the quality and precision of Topa's fittings firsthand!

How to Choose the Right Size of SAE ORB Fitting

Determine the Port Size

Select the Right Thread Type and Pitch

Consider the Pressure Rating

Ensure Compatibility with Hose or Tubing Size

Account for Material and Application Conditions

Product Machining Process

Cutting

CNC Machining

Threading

Polish

Crimping

Packing

Quality Control

Start Your Order Today!

Don’t wait to optimize your hydraulic system with high-quality SAE ORB fittings. Fill out our inquiry form and start your order now for fast, reliable delivery!

More Than Just a Hydraulic Fittings Manufacturer

Custom Solutions

Global Shipping

Fast Response Time

High-Quality Materials

Competitive Pricing

Technical Support

Flexible Lead Times