Pneumatic fittings are the backbone of reliable pneumatic and liquid piping systems, with their performance directly tied to material selection, surface treatment, and design. Below is a detailed breakdown of pneumatic fitting materials, key characteristics, customization options, and applications—helping you choose the right pneumatic fitting for your system.
The material of a pneumatic fitting determines its pressure resistance, temperature tolerance, corrosion resistance, and suitability for specific environments. We offer pneumatic fittings in a range of high-performance materials, each tailored to distinct application needs:
Stainless steel is a top choice for demanding pneumatic systems, thanks to its exceptional durability:
Key Traits: Resistant to high temperatures, high pressure (maximum pressure up to 20MPa), corrosion, and acids/alkalis. Delivers stable performance even in harsh industrial environments (e.g., chemical processing, food production).
Ideal For: High-pressure systems (exceeding 5.0MPa), corrosive media, or hygiene-critical applications (food, pharmaceutical).
Brass balances strength and versatility, making it a common choice for medium-to-low pressure setups:
Key Traits: Withstands high temperatures and medium-to-high pressure (maximum pressure up to 10MPa; actual pressure resistance depends on the fitting’s thickness). Offers natural corrosion resistance, eliminating the need for complex surface treatments.
Ideal For: General industrial pneumatic systems, compressed air lines, and applications where pressure requirements fall below 10MPa.
Carbon steel delivers high performance at a cost-effective price point:
Key Traits: Matches stainless steel in high-temperature and high-pressure tolerance (maximum pressure up to 20MPa) but is more budget-friendly. However, carbon steel is prone to rust, so it requires surface treatments like zinc plating or nickel plating to enhance corrosion resistance.
Ideal For: High-pressure systems (exceeding 5.0MPa) where cost efficiency is a priority, such as heavy machinery or industrial piping.
Aluminum alloy is specialized for weight-sensitive applications:
Key Traits: Extremely lightweight, making it suitable for systems where weight reduction is critical. It undergoes surface oxidation treatment to improve corrosion resistance.
Ideal For: Niche scenarios like aerospace, lightweight automation equipment, or portable pneumatic tools (used less frequently than other materials due to its narrower application scope).
Plastic is a cost-effective option for low-pressure environments:
Key Traits: Lightweight, affordable, and easy to install. However, it has limited pressure tolerance and is only suitable for low-pressure systems.
Ideal For: Basic pneumatic setups with low pressure requirements (e.g., small-scale automation, hobbyist projects).
Surface treatment enhances the durability, corrosion resistance, and appearance of pneumatic fittings, tailored to their base material:
Brass & Stainless Steel Fittings: Typically undergo acid pickling to remove surface impurities, improve smoothness, and preserve their natural corrosion resistance.
Carbon Steel Fittings: Zinc plating, copper plating, or nickel plating are standard—these coatings prevent rust and extend the fitting’s service life in humid or industrial environments.
Aluminum Alloy Fittings: Surface oxidation treatment forms a protective oxide layer, boosting corrosion resistance while maintaining the material’s lightweight advantage.
Our pneumatic fittings are engineered for tight precision to ensure compatibility and leak-free connections:
For undefined tolerances, the default standard is ±0.1mm—sufficient for most industrial applications.
For high-precision systems (e.g., medical equipment, precision automation), we offer pneumatic fittings with a minimum tolerance of 0.01mm, meeting the strictest dimensional requirements.
Every pneumatic system has unique demands, which is why we support full OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) customization for all pneumatic fittings:
Tailor materials, sizes, pressure ratings, and surface treatments to match your specific application.
Collaborate with our engineering team to design custom pneumatic fittings for non-standard piping layouts or specialized environments.
We offer a comprehensive range of pneumatic fitting types to cover diverse connection needs:
Universal Pipe Fittings: Versatile for general pneumatic and liquid piping connections.
Ferrule Compression Fittings: Secure, leak-free connections for high-pressure systems, relying on ferrules to seal and lock tubing.
Nut Rapid Fittings: Designed for quick assembly and disassembly, ideal for systems requiring frequent maintenance.
D.O.T Fittings: Compliant with Department of Transportation standards, suitable for automotive, truck, or trailer pneumatic systems.
Our pneumatic fittings are widely used across industries to connect pneumatic and liquid piping systems, including:
Industrial automation (robotic arms, assembly lines).
Automotive manufacturing (fuel lines, air brake systems).
Food and beverage processing (hygienic stainless steel fittings).
Chemical processing (corrosion-resistant stainless steel or brass fittings).
Medical equipment (high-precision, low-contamination fittings).
Whether you need a standard brass pneumatic fitting for a low-pressure line or a custom stainless steel fitting for a high-temperature, high-pressure system, we have the solution to keep your piping system running smoothly. For more information on our pneumatic fittings or to discuss customization, feel free to contact us today!
