Brass Fittings Manufacturer in China
for OEM & Wholesale Supply

● Standard & custom brass fittings

● Drawing-Based OEM Production

● OEM drawing & sample support

● Inspection before shipment

Product List

Topa offers a full line of brass fittings. The type and material of fitting to be purchased depends on the size of the hydraulic hose used. For more information about our products, please click on the link below

Products Video

In this video, you will see how Topa produces high-quality brass fittings in our factory. From raw material processing to CNC machining, each step is carried out with close attention to accuracy, consistency, and product quality.

You will also see how we handle custom brass fitting orders based on different project requirements. Whether you need changes in size, thread, finish, or logo marking, our team works to make the fittings match your specifications more accurately.

This video also shows the way we control product quality during production, helping reduce problems such as size errors, thread mismatch, and poor surface finish.

Check our brass fitting solutions and send us your drawing or sample for a custom quote.

Application

Brass pipe fittings are essential components in a wide range of industries due to their strength, corrosion resistance, and excellent performance in both high and low-pressure environments. From water systems to industrial machinery, brass pipe fittings are used extensively across multiple applications.

Request a Brass Fitting Supply Quotation

Commercial quotations are prepared according to fitting type, thread standard, tube or hose size, material requirements, quantity per SKU, total SKU structure, custom marking, packaging, and purchasing schedule.

Topa Brass Fittings Features

Topa brass fittings are designed to meet the demanding needs of various industries, offering superior performance, durability, and reliability. Whether you’re working with hydraulic systems, plumbing, or industrial machinery, our fittings are engineered to provide long-lasting solutions.

Material Difference

Brass vs Stainless Steel Fittings

Corrosion Resistance:

Brass fittings offer excellent corrosion resistance, especially in environments with water or humidity. While stainless steel also has good corrosion resistance, it tends to be more prone to pitting and staining over time when exposed to certain chemicals or harsh conditions. Brass, on the other hand, is highly resistant to corrosion caused by moisture and has a natural patina that further protects it from damage.

Cost:

Brass fittings are generally more cost-effective than stainless steel fittings. While stainless steel is stronger and more durable, the higher material cost and machining complexity can make stainless steel fittings significantly more expensive. Brass offers a more affordable solution without compromising on strength and durability for most applications.

Brass vs Carbon Steel Fittings

Corrosion Resistance:

Brass fittings outshine carbon steel fittings in terms of corrosion resistance. While carbon steel is known for its strength, it is highly susceptible to rust and corrosion, especially when exposed to moisture or harsh chemicals. Brass fittings, due to their copper-zinc composition, provide superior resistance to rust and corrosion, making them more reliable in wet or outdoor environments.

Machinability:

Brass is easier to machine than carbon steel due to its softer, more malleable nature. This allows for more precise manufacturing and better tolerances in the production of fittings. Carbon steel, being harder, can be more difficult and costly to machine, resulting in longer lead times and higher production costs.

Customization Options for Brass Fittings

At Topa, we understand that each project may have unique requirements, and that’s why we offer a comprehensive range of customization options for our brass fittings. Whether you need specific dimensions, surface treatments, colors, or packaging, we are equipped to provide tailored solutions that meet your exact specifications. Here’s how we can help customize your brass fittings:

Drawing-Based Production

Custom brass fittings can be reviewed according to confirmed drawings, dimensions, tolerances, threads, sealing geometry, and application requirements.

Thread Options

NPT, NPTF, BSPP, BSPT, Metric, UNF, JIC, SAE flare, and other thread requirements can be reviewed according to the drawing or sample.

Brass Material Requirements

Material requirements should be confirmed according to the applicable market, medium, machining requirements, and product specification.

Product Marking

Logos, part numbers, size marks, customer codes, and other product identification can be discussed for qualified OEM projects.

Labels & Packaging

Custom bags, labels, cartons, barcodes, quantities, and SKU identification can support distributor and private-label programs.

Specification Approval

Custom production begins after the drawing, material, dimensions, thread, marking, packaging, quantity, and commercial requirements are approved.

Commercial Quotation Based on Your Brass Fitting List

Brass fitting quotations are prepared according to thread type, tube or hose size, fitting configuration, material requirement, surface finish, quantity per SKU, marking, packaging, and delivery plan.

Brass Fitting Types

Brass Barb Fittings

Brass barb fittings are designed to securely connect hoses to pipes or other fittings using a barbed structure. These fittings feature ridged or “barbed” ends that grip the inner walls of flexible hoses, preventing them from slipping off under pressure. Brass barb fittings are commonly used in low-pressure applications like garden irrigation systems, fuel lines, and water supply lines.

Brass Compression Fittings

Brass compression fittings are used to connect two tubes or pipes by compressing a ring (or ferrule) around the tube as the fitting nut is tightened. This creates a secure, leak-free seal, making them ideal for plumbing systems, gas lines, and other applications that require a reliable, easy-to-install connection. These fittings are excellent for both low and medium-pressure environments.

Brass Pipe Fittings

Brass pipe fittings are essential for joining pipes in a wide variety of systems, including plumbing, heating, and gas lines. They come in various shapes such as elbows, tees, and adapters and can be used for both threaded and non-threaded pipe connections. Brass pipe fittings offer excellent resistance to corrosion, ensuring long-term durability in wet or humid conditions.

Garden Hose Brass Fittings

Garden hose brass fittings are designed specifically for outdoor irrigation systems. These fittings allow for secure attachment of hoses to faucets or sprinklers, offering a strong, durable connection that can withstand pressure and outdoor conditions. Their corrosion resistance makes them a long-lasting choice for garden irrigation, car washing, and other outdoor activities.

Brass Flare Fittings

Brass flare fittings are designed to create leak-proof connections between pipes and hoses. They feature a flared end that fits into a matching fitting, and when tightened with a nut, a secure seal is formed. Brass flare fittings are available in different flare angles, with the most common being 37° and 45° flares. The 37° flare is widely used in automotive, gas, and fuel systems, while the 45° flare is commonly seen in plumbing and refrigeration systems.

D.O.T. Brass Fitting

DOT brass fittings are specifically designed to meet the stringent safety and performance standards set by the U.S. Department of Transportation (DOT). DOT brass fittings often have a more robust construction and may feature additional markings or certifications to indicate compliance with DOT standards. In terms of performance, DOT brass fittings are engineered to provide enhanced durability and leak resistance, particularly in automotive, industrial, and transportation applications.

Avoid Common Pitfalls

When purchasing brass fittings, customers often face common challenges and uncertainties. These issues can lead to system failures, reduced performance, and increased maintenance costs. However, at Topa, we understand these concerns and take proactive measures to ensure that each product we deliver meets the highest standards of quality and precision. With our experienced team and strict quality control processes, we guarantee that your fittings will be free from these common pitfalls, providing you with reliable, long-lasting solutions for all your applications.

Threading Errors

One of the common issues when dealing with brass fittings is confusion between NPT (National Pipe Thread) and NPTF (National Pipe Thread Fuel) threads. While both are tapered threads used for sealing, they differ in their sealing mechanism. NPTF threads have a tighter tolerance and are designed to provide a leak-free seal without the need for additional sealants, making them ideal for fuel and hydraulic systems. Using the wrong thread type can lead to poor sealing, leaks, and system failures. It's crucial to ensure the correct thread type is specified and used to avoid costly mistakes.

Swivel Fittings Issues

Swivel fittings are designed to allow flexible movement between connected parts, but mistakes can occur when these fittings are confused with fixed fittings. In some cases, rotating fittings might be shipped incorrectly as fixed connections, causing restricted movement or damage to the system. Additionally, if the rotating mechanism becomes seized or jammed, it can result in poor functionality or system failure.

Incorrect Sizes

Size errors are another common pitfall in the brass fitting industry. Even a small deviation in size can cause issues like improper fitting, leakage, or reduced performance. It's essential to ensure that all measurements are accurate, especially when it comes to pipe diameters, thread sizes, and fitting dimensions. Double-checking specifications and confirming with the manufacturer can prevent the use of ill-fitting components that may cause system inefficiencies or safety concerns.

Low-Quality Material & Pricing

When a factory offers significantly lower prices, it may indicate the use of subpar materials or manufacturing processes. Using less durable materials can shorten the product's lifespan, leading to premature wear, corrosion, and failure. While low prices are tempting, they often come at the cost of quality and reliability. Opting for higher-quality brass fittings made from premium alloys ensures better durability, resistance to corrosion, and longer-lasting performance, reducing the need for frequent replacements and system downtime.

Ready to Submit Your Brass Fitting List?

Send your part numbers, drawings, thread requirements, tube or hose sizes, quantity per SKU, material requirements, packaging instructions, and purchasing schedule. Our team will review the available information before preparing the quotation.

Choose Topa

See Our Production, Inspection, Storage, and Delivery Capability

At Topa, each custom brass fitting project follows a clear production flow. This helps reduce drawing misunderstandings, thread errors, burr problems, and batch inconsistency.

Choose Topa

More Than Just a Brass Fittings Manufacturer

At Topa, we are committed to delivering exceptional service that goes beyond just providing high-quality brass fittings. We understand the importance of reliable products, fast response times, and flexible solutions for our customers. That’s why we prioritize customer satisfaction by offering a comprehensive range of services designed to address your unique needs.

Customization Flexibility

We offer a wide range of customization options, from fitting size and material to surface treatment and packaging. This flexibility ensures that your fittings meet the exact specifications.

Fast Response Time

At Topa, we understand the importance of timely communication. Our dedicated customer service team ensures fast response times to your inquiries, whether it's a technical question, or order status update.

Multi-SKU Quotations

You can submit product lists containing different fitting types, threads, sizes, configurations, and quantities. Customer part numbers, labels and product identification can be discussed.

On-Time Delivery

We understand that delays can disrupt your projects, so we prioritize on-time delivery. With efficient production processes and logistics partners, we ensure that your fittings arrive when you need them.

High-Quality Assurance

At Topa, quality is at the core of everything we do. Each brass fitting undergoes stringent quality control checks to ensure that it meets industry standards for durability, performance, and precision.

Expert Technical Support

Our team of specialists is always available to offer expert technical support. Whether you need advice on selecting the right fitting or guidance on installation and maintenance, we’re here.

Competitive Pricing

We provide high-quality brass fittings at competitive prices. Our commitment to providing cost-effective solutions without compromising on quality helps you get the best value.

After-Sales Support

Our commitment to customer satisfaction doesn’t end after the sale. We offer comprehensive after-sales support to address any issues or questions that may arise once you’ve received your order.

FAQ

What are brass fittings used for?

Brass fittings are commonly used to connect pipes and hoses in hydraulic, pneumatic, plumbing, and gas systems. They are valued for their strength, durability, and corrosion resistance.

What are the different types of brass fittings available?

Brass fittings come in various types, including barb fittings, flare fittings, compression fittings, pipe fittings, garden hose fittings, and DOT fittings.

Can brass fittings be used in high-pressure systems?

Yes, brass fittings are commonly used in high-pressure systems, especially when paired with the right sealing mechanisms, such as flare or compression fittings. They offer good strength and corrosion resistance under pressure.

Are brass fittings resistant to corrosion?

Yes, brass is highly resistant to corrosion, especially in water and atmospheric environments, making it ideal for use in plumbing, irrigation, and hydraulic systems.

How do I choose the right size brass fitting?

To choose the right size, you need to match the fitting’s size with the pipe or hose diameter. It’s crucial to check the pipe’s outer diameter (OD) and the fitting’s internal diameter (ID) to ensure compatibility.

Can I customize brass fittings?

Yes, Topa offers full customization options for brass fittings, including size, thread type, material, surface finish, and packaging to meet your specific application requirements.

How long do brass fittings last?

With proper installation and maintenance, brass fittings can last for many years. They are highly durable and resistant to corrosion, ensuring long-term performance in most applications.

What is the difference between flare and compression fittings?

Flare fittings have a flared end and are ideal for high-pressure systems, while compression fittings use a ferrule to seal the connection and are often used for low to medium-pressure systems.

Are brass fittings environmentally friendly?

Yes, brass is a sustainable material. It is recyclable and can be reused without losing its quality, making it an environmentally friendly choice compared to other metals.

How do I maintain brass fittings?

Regularly inspect brass fittings for wear, leaks, or damage. Clean them periodically and replace worn or damaged fittings to ensure system integrity and prevent failures.

Brass Fittings Manufacturer in China for OEM & Wholesale Supply