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Description
Heavy Duty Air Line Coupling
Female G 1/2″ BSP Thread — Steel
Engineered for sustained high-cycle operation in trade workshops, industrial air systems, and tyre inflation rigs. Rated to 17 bar / 250 psi with a 500 L/min flow capacity at 6 bar — this is the coupling professionals reach for when reliability is non-negotiable.
In a compressed air system, the coupling is the critical junction between power and performance. A substandard fitting introduces pressure drop, leak risk, and premature failure — costs that compound across every shift.
This Schrader-pattern heavy duty coupling is built from solid steel with a G 1/2″ BSP female thread, designed to mate securely with compatible male plugs and maintain a leak-free seal under continuous cycling. The robust body geometry resists deformation under torque, and the internal valve mechanism ensures consistent airflow without restriction at rated pressures.
Suitable for workshop compressor manifolds, tyre inflation bays, pneumatic tool circuits, and industrial air lines where a G 1/2″ female threaded entry point is specified.
| Product Type | Heavy Duty Air Line Coupling |
| Coupling Style | Schrader Heavy Duty Pattern |
| Connection Type | Female Thread |
| Thread Size | G 1/2″ BSP (ISO 228) |
| Nominal Bore | 8.5 mm |
| Flow Rate | 500 L/min at 6 bar |
| Max Working Pressure | 17 bar / 250 psi |
| Temperature Range | −10°C to +60°C |
| Body Material | Steel |
| Finish | Industrial |
| Shipping Weight | 0.182 kg |
| SKU | air_comp1140 |
| Country of Stock | United Kingdom |
| Barcode | AC015014875040295 |
Why thread size matters: A G 1/2″ BSP female coupling is the correct choice for compressor outlets, manifold ports, and regulator inlets specified at 1/2″. Using an undersized coupling at this port creates a flow bottleneck that reduces tool performance and increases system heat. This fitting eliminates that compromise — full bore, full pressure, full flow.
This coupling is the correct specification for: workshop compressor manifold outlets — tyre inflation bay air lines — pneumatic tool quick-connect circuits — industrial blow-off and cleaning stations — vehicle lift and press air supplies — spray booth compressed air feeds. Wherever a G 1/2″ BSP female entry is called for in a heavy duty pneumatic circuit, this coupling is the correct and compliant choice.
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