Prevost Conex Unequal Union
Price range: $1.41 through $6.20
- Description
- Additional information
Description
Prevost Conex Unequal Union
Seamless Adaptation for Multi-Size Pneumatic Lines
The Prevost Conex Unequal Union is a specialized push-to-connect fitting designed to bridge the gap between two different sizes of pneumatic tubing. Whether you are stepping down a main supply line to feed a smaller, high-precision instrument or adapting various components within a complex manifold, this reducer union provides a secure, airtight connection without the need for multiple adapters or bulky threaded interfaces.
The Unequal Union ensures a streamlined transition while maintaining industrial-grade reliability for any pneumatic system.
Key Features
- Precision Size Reduction: Engineered to connect two tubes of different outside diameters (e.g., 8mm to 6mm or 10mm to 8mm) in a single, compact straight fitting.
- Instantaneous “Grip” Technology: Both ports feature Prevost’s signature stainless steel gripping rings. Installation is tool-free—simply push the tubing into each end for an immediate, vibration-proof seal.
- Full-Flow Transition: The internal bore is tapered to minimize air turbulence and prevent significant pressure drops during the transition from a larger volume line to a smaller one.
- Compact & Lightweight: Its slim, cylindrical profile is ideal for routing through tight spaces, cable tracks, or dense control cabinets where larger reducers would create clutter.
- High-Impact Construction: Manufactured from high-grade technical polymer, this union is resistant to corrosion, common workshop chemicals, and the mechanical wear of industrial environments.
Technical Specifications
| Feature | Specification |
| Connection Type | Unequal Straight Union (Tube-to-Tube) |
| Technology | Push-to-connect (Instantaneous) |
| Max Operating Pressure | 145 PSI (10 bar) |
| Vacuum Rating | -28 inHg |
| Temperature Range | 32°F to 140°F (0°C to +60°C) |
| Compatible Tubing | Polyurethane (PU), Nylon (PA), Polyethylene (PE) |
The Efficient Way to Adapt
In many pneumatic designs, using a “step-down” approach is essential for efficiency. A larger main line provides the volume required for the whole system, while smaller “branch” lines deliver the precise pressure needed for sensors or small actuators. The Prevost Conex Unequal Union eliminates the need for “stacked” fittings, reducing the number of potential leak points and creating a much cleaner, more professional installation.
Ideal Applications
- Manifold Branching: Transitioning from a primary air supply line to smaller pilot or signal lines.
- Sensor Integration: Adapting standard 8mm or 10mm lines to fit the 4mm or 6mm ports on miniature pressure switches and sensors.
- Laboratory Automation: Managing intricate tubing runs where various tool sizes are used on a single bench.
- Maintenance Work: Quickly repairing a section of line where only a different size of tubing is immediately available.
Additional information
| Tube OD | 1/8", 5/32", 3/16", 1/4", 5/16", 3/8", 1/2", 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm |
|---|---|
| Tube OD Out | 5/32, 3/16, 1/4, 1/8, 4 mm, 5/16, 3/8, 6 mm, 8 mm, 10 mm, 12 mm |
| Product Range | Conex and Connections |

























