DOT Air Brake Fittings Copper Tubing
The DOT Air Brake Fittings Copper Tubing manufacture!
Zhejiang Yijia Hydraulic Machinery Co., Ltd. is an industry and trade company for hardware production in China founded in 2013. The company focuses on brass fittings and customized precision parts.
Why choose us
Customized Solutions
We offer tailored hydraulic fittings and hoses designed to meet specific customer requirements. Our team works closely with clients to provide bespoke solutions that fit their unique applications and operational needs.
Our Certificate
Yijia Machinery has passed IATF 16949:2016 system certification,ISO 9001 & ISO 14001 system certification,DOT, AMECA product certification.
Rigorous Quality Control
We implement stringent quality control measures at every stage of production. Our adherence to ISO, BV, and TVU standards guarantees that each product meets the highest benchmarks for performance and safety.
Dedicated Customer Service
Our customer service team is committed to providing exceptional support and addressing any concerns promptly. We prioritize clear communication and proactive problem-solving to ensure a seamless experience for every client.
|
Part# |
Tube OD |
A |
Hex |
PARKER |
EATON |
MAF |
GATES |
Tectran |
Automann |
Fleet Pride |
Fairview |
Tramec Sloan |
Haldex |
|
3022 - 4 |
1/4 |
0.83 |
0.44 |
62AB - 4 |
1362x4 |
38179 |
G30400 - 0404 |
1162-4 |
177.15624 |
/ |
1162-4 |
S262AB-4 |
11050 |
|
3022 - 6 |
3/8 |
1.08 |
0.56 |
62AB - 6 |
1362x6 |
38180 |
G30400 - 0606 |
1162-6 |
177.15626 |
/ |
1162-6 |
S262AB-6 |
11051 |
|
3022 - 8 |
1/2 |
1.29 |
0.69 |
62AB - 8 |
1362x8 |
38181 |
G30400 - 0808 |
1162-6 |
177.15628 |
A62-8 |
1162-8 |
S262AB-8 |
11052 |
|
3022 - 10 |
5/8 |
1.41 |
0.81 |
62AB - 10 |
1362x10 |
38182 |
G30400 - 1010 |
1162-8 |
177.15621 |
/ |
/ |
S262AB-10 |
/ |
|
3022 - 12 |
3/4 |
1.58 |
1 - 1/8 |
62AB - 12 |
1362x12 |
38183 |
G30400 - 1212 |
1162-10 |
177.156212 |
/ |
/ |
S262AB-12 |
/ |

Features of DOT Air Brake Fittings Copper Tubing
DOT Compliant
Brass unions meet the highest standards for safety and reliability set forth by the Department of Transportation. This means that they are designed to withstand the harsh conditions of air brake systems and provide a secure, leak-free connection between two pieces of nylon tubing.
Machined From High-quality Materials
Brass unions are machined from CA360 brass, a corrosion-resistant alloy that is well-suited for use in air brake systems. This material is strong and durable, making it ideal for use in harsh environments where it may be subjected to high pressures, vibration, or temperature extremes.
Easy To Install
Brass unions are designed to be easy to install. They do not require any special tools or equipment, and can be assembled quickly and efficiently. This makes them ideal for use in situations where time is of the essence, or where assembly must be done quickly and efficiently.
Leak-free Connection
Brass unions provide a secure, leak-free connection between two pieces of nylon tubing. This is essential for ensuring the safety and reliability of air brake systems, as even a small leak can compromise the effectiveness of the braking system.
Compatible With Other Components
Brass unions are compatible with other components of air brake systems, making them a versatile and flexible option for many different applications.
Applications of DOT Airbrake Brass Fittings in Transportation
Trucks and Trailers
Heavy-duty trucks and their trailers depend on air brake systems to safely transport goods across long distances. DOT airbrake fittings are used to connect the compressed air lines that power the braking system, ensuring reliable stopping power.
Buses
Public transport buses use air brake systems to stop and start safely, often under heavy loads. DOT brass fittings are crucial in ensuring the air pressure is consistently and accurately delivered to the brakes.
Construction Equipment
Air brake systems are commonly used in large construction vehicles like dump trucks, cranes, and excavators. Brass fittings in these air systems ensure proper braking even in rugged terrain and challenging conditions.
Agricultural Equipment
Tractors and other agricultural machines also use air brake systems to transport heavy loads. DOT-certified fittings ensure the reliability of air pressure transfer, improving safety during use.
Packaging & Shipping

Our factory
Yijia Hydraulic Machinery adopts full CNC machining, with a workshop area of 3600 square meters, equipped with 100 sets of full machine tools, 60 sets of semi-automatic CNC machines, and 5 sets of inspection equipment.We have an annual production capacity of 3 million sets of brass fittings and air brake hose assemblies.

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