Pneumatic Fittings
10x Pneumatic Fitting | 4-12mm Push-Fit Connector | Air Hose & Tube
CMP-04545PNEU-00001
£4.99
Pneumatic Fittings
3 products available
Pneumatic fittings connect components within a compressed air system, enabling the controlled flow of air to power industrial machinery and tools. Also known as air fittings, these components are fundamental for assembling or repairing pneumatic circuits. They connect air hoses, tubes, valves, and cylinders, ensuring a secure and leak-free network. This category is for trade and industry professionals who require reliable parts for automation, manufacturing, and maintenance, repair, and operations (MRO).
Compel supplies a focused range of the most common pneumatic hose fittings for industrial applications. Our selection centers on push-to-connect pneumatic fittings, valued for their speed and ease of installation without tools. Available in durable plastic and corrosion-resistant 304 stainless steel, these fittings meet the demands of typical factory environments. We provide dependable components for your essential pneumatic systems.
Choose Your Connection Style: Push-to-Connect
The primary decision for pneumatic fittings is the connection method. Our range focuses on push-to-connect fittings, also called push-in or push-fit connectors. This design allows for rapid, tool-free installation. You simply push the air hose firmly into the fitting to create a secure, sealed connection. To release, you press down on the collar and pull the tube out.
This style is highly efficient for MRO tasks and building new systems where speed is a factor. While other types like compression pneumatic fittings exist for higher-pressure or high-vibration applications, the push-to-connect style is the standard for general industrial automation and machinery.
Select a Material: Plastic vs. Stainless Steel
Material choice depends on your operating environment and performance requirements. Each has distinct advantages for industrial use.
Plastic pneumatic fittings are lightweight, corrosion-resistant, and cost-effective for standard air line applications. They are ideal for use with polyurethane (PU) or nylon tubing in most factory settings. Our plastic fittings are typically made from materials like those in our PE/PEG models.
For environments with moisture, chemical exposure, or where greater durability is needed, 304 stainless steel fittings are the correct choice. Stainless steel provides superior corrosion resistance and strength compared to plastic or brass pneumatic fittings, ensuring long-term reliability in more demanding conditions.
Verify Sizing and Thread Compatibility
Correct sizing is critical to prevent leaks. For push-in fittings, the size must match the outer diameter (OD) of your pneumatic tube. Our fittings accommodate common tube sizes from 4mm to 14mm. Always ensure your tube is cut squarely before inserting it into the fitting for a proper seal.
For threaded ports, you must also match the thread type and size. Many industrial components use parallel threads like BSP (British Standard Pipe), which require a sealing washer or O-ring. Check the specifications of your valve, cylinder, or manifold to confirm the required thread standard before ordering.
Buying guide
Choosing Pneumatic Fittings
- How do I correctly size a push to connect pneumatic fitting for my hose?
- Match the fitting's size designation directly to the outer diameter (OD) of your pneumatic air hose. For example, a 6mm fitting is designed for a hose with a 6mm OD. Using the wrong size will result in a failed connection or system leaks.
- When should I use stainless steel air fittings instead of plastic ones?
- Choose 304 stainless steel fittings for applications exposed to moisture, washdowns, or corrosive chemicals. They also offer greater mechanical strength. Plastic pneumatic fittings are suitable for general-purpose, dry air lines where cost and light weight are priorities.
- Are your BSP thread fittings compatible with NPT ports?
- No, BSP and NPT threads are not directly compatible due to different thread angles and pitches. Attempting to connect them will damage the threads and cause leaks. Always use a specific BSP-to-NPT adapter if you must connect components with different standards.
- What is the main advantage of push-in pneumatic fittings?
- The primary advantage is speed and simplicity. Push-to-connect fittings allow for instant, tool-free assembly and disassembly of air lines, which significantly reduces installation and maintenance time on industrial machinery.
- What is a common installation mistake with pneumatic hose fittings?
- A frequent error is using a hose that has been cut at an angle or has a burred edge. This prevents the tube from seating correctly against the O-ring inside a push-in fitting, which is a primary cause of slow leaks. Always use a dedicated tube cutter for a clean, square cut.
- Are these fittings rated for food-grade or hazardous environments?
- The standard plastic and 304 stainless steel fittings we carry are not rated for food-grade or hazardous (ATEX) applications by default. For specialized compliance, you must check the individual product datasheet to confirm if it carries the specific certification you require.