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Description
Air Compressors UK · Pneumatic Fittings
Stud Coupling
R 1/4" BSP Male × 8mm Push-Fit Tube
Nickel-Plated Brass | 10 Bar Rated | BSP Parallel Thread | UK Stock
The R 1/4" BSP Male Stud Coupling to 8mm Push-Fit Tube is the definitive panel-mount connector for professional pneumatic installations. Machined from high-grade brass and finished with a corrosion-resistant nickel plating, this fitting delivers leak-free, tool-free tube insertion rated to 10 bar — engineered for the demands of workshop air lines, industrial automation, and mobile service equipment alike. A single fitting that installs in seconds and performs for years.
Technical Data
Specifications at a Glance
Why This Fitting
Engineered for Reliability
- Tool-free push-fit connection — 8mm tube inserts and locks in a single motion; release collar for instant removal without damage to the tube.
- Nickel-plated brass construction — superior corrosion resistance versus standard brass, maintaining integrity in humid workshop and outdoor environments.
- BSP parallel thread (BSPP) — the UK and European industry standard; compatible with the vast majority of compressors, manifolds, and pneumatic valves.
- 10 bar pressure rating — comfortably exceeds the output of most workshop compressors (typically 6–8 bar), providing a safe operational margin.
- Panel-mount stud design — hex body allows bulkhead installation through enclosure walls, control panels, and machine frames for a clean, professional finish.
- Wide temperature tolerance — rated from −20°C to +80°C, suitable for cold-store environments through to heated industrial settings.
Where It Works
Typical Applications
Workshop Air Lines
Panel-mount drops and distribution manifolds in garages, fabrication shops, and spray booths.
Industrial Automation
Cylinder feeds, valve banks, and pneumatic control circuits in manufacturing environments.
Mobile Service Vehicles
Bulkhead connections on service vans, mobile compressor units, and tyre-fitting rigs.
OEM Equipment
Original equipment builds requiring a compact, reliable BSP-to-tube interface.
Pneumatic Control Systems
Instrument air, pilot lines, and sensing circuits where leak-free performance is critical.
Maintenance & Repair
Direct replacement for worn or damaged stud couplings across a wide range of existing installations.
Installation Guide
Fitting in Four Steps
- Prepare the port: Ensure the R 1/4" BSP female port is clean and free of debris. Apply PTFE thread tape (2–3 wraps) to the male thread for a pressure-tight seal.
- Thread the stud: Hand-tighten the fitting into the port, then use a spanner on the hex body to torque to approximately 15–20 Nm. Do not overtighten.
- Insert the tube: Cut the 8mm OD polyurethane or nylon tube cleanly and squarely. Push firmly into the collet until it seats fully — you will feel a positive click.
- Pressure test: Pressurise the system and check for leaks using soapy water or a leak-detection spray before returning to service.
Compatibility
System Compatibility
This fitting is compatible with the following tube materials and systems:
- Polyurethane (PU) tube — 8mm OD
- Nylon (PA) tube — 8mm OD
- Polyethylene (PE) tube — 8mm OD
- Compressed air systems up to 10 bar
- Inert gas and vacuum applications (consult application requirements)
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