Upgrade your pneumatic systems with this 5PCS bulkhead union push-to-connect air fittings kit, featuring five essential outer diameters: 4mm, 6mm, 8mm, 10mm, and 12mm. These straight connectors provide a reliable, leak-free seal for compressed air lines up to 150 PSI, ensuring consistent performance and easy installation without tools. Features and Benefits
- Multi-Size Kit (4, 6, 8, 10, 12mm OD) - Covers the most common tubing sizes for versatile project compatibility and inventory consolidation.
- Push-To-Connect Quick Release Design - Enables tool-free, one-handed tube insertion and removal for rapid assembly, maintenance, and reconfiguration.
- Bulkhead Union Configuration - Allows you to securely pass an air line through a panel, wall, or machine frame with a clean, professional finish on both sides.
- Brass Body with POM Sleeve - Combines corrosion-resistant durability with smooth, reliable operation of the quick-release mechanism for long service life.
- Sealed for 150 PSI Operation - Provides a robust, airtight connection suitable for demanding workshop, automotive, and industrial pneumatic applications. Applications
- CNC Machinery and 3D Printers - Create organized air supply lines through control cabinets and machine frames for solenoid valves and actuators.
- Automotive Shop Air Systems - Install clean, secure lines for air tools, tire inflators, and paint sprayers from a central compressor distribution point.
- DIY Pneumatic Projects and Automation - Ideal for building custom air-powered rigs, sandblasting cabinets, or model launch systems where panel mounting is required.
- Industrial Equipment Maintenance - Quickly repair or modify pneumatic circuits on packaging, manufacturing, or assembly line machinery with minimal downtime. Note
Ensure tubing ends are cut square and deburred for optimal seal and to prevent damage to the internal O-ring. Check compatibility with your tubing material (typically nylon or polyurethane) before installation.
Outer Diameter (OD) Sizes: 4 mm, 6 mm, 8 mm, 10 mm, 12 mm. Fluid Compatibility: Compressed Air. Mounting Type: Bulkhead (Panel Mount). Quantity per Set: 5 pieces. Hole Diameter for Panel Mount: 12mm (Typical for M5 bulkhead). Thread Size: M5 or 1/8" (Typical for bulkhead fitting). Tube Outer Diameter (OD) Set: 4mm, 6mm, 8mm, 10mm, 12mm. Body Material: Polyamide (Nylon) or Acetal (POM). Collet Material: Stainless Steel. Seal Material: Nitrile Rubber (NBR) O-ring. Operating Pressure Range: 0 to 10 bar (0 to 145 PSI). Temperature Range: -5°C to 60°C. Media Compatibility: Compressed Air, Inert Gases. Tube Compatibility: Polyurethane (PU), Nylon, Polyethylene (PE). Ingress Protection (IP) Rating: IP40 (Typical for panel mount). Maximum Operating Pressure: 10 bar (145 PSI). Actuation Mechanism: Push-to-Connect Quick Release. Connection Type: Straight (In-Line) Union. Flow Coefficient (Cv): Approximately 0.5 to 1.2 (Varies by size). Leakage Rate: < 0.1 Nml/min at 7 bar (Standard industry spec). Mounting Type: Bulkhead (Panel Mount). Product Type: Pneumatic Push-to-Connect Bulkhead Union Fitting. Quantity per Set: 5 Pieces (One of each OD size). Reusability: Yes (Designed for multiple tube insertions). Thread Specification: BSPP (G) or NPT (Inferred from pneumatic standard). Q: What are the exact tube outer diameters (OD) included in this set of pneumatic fittings? A: This bulkhead union set includes five fittings designed for 4mm, 6mm, 8mm, 10mm, and 12mm outer diameter (OD) tubing. The push-to-connect design ensures a quick and secure seal for each size.. Q: How durable are these push-to-connect air fittings for regular use in a workshop? A: These fittings are constructed from robust materials suitable for pneumatic systems. They are designed for reliable performance and repeated use, offering good durability for DIY projects and professional workshop applications.. Q: Can these quick release connectors be used for both air and water lines? A: These are specifically designed as pneumatic air fittings for compressed air systems. While they may seal, we do not recommend using them for water or liquid applications, as the internal seals are optimized for air.. Q: Does this product come with any warranty or guarantee? A: This product is sold as-is and does not include a manufacturer's warranty. However, it is built to provide reliable service, and many users find it to be a dependable component for their pneumatic setups.. Q: Is this 5-piece bulkhead union set a good value compared to buying individual fittings? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. The set provides a versatile range of common sizes (4mm to 12mm OD) in one purchase, delivering reliable performance for regular use..