Brass Hose Barb Fitting 4–19mm x 1/2" BSP Female Thread Adapter

Brass Hose Barb Fitting – 4mm to 19mm x 1/2" BSP Female Thread

Connect hoses to threaded ports quickly and securely with this precision-machined brass hose barb fitting. Featuring a 1/2" BSP (British Standard Pipe) female thread on one end and a barb tail ranging from 4mm to 19mm on the other, this versatile copper connector is engineered for reliable, leak-resistant performance in water, air, and fluid transfer applications. Whether you're plumbing a garden irrigation system, workshop equipment, or household pipework, this fitting delivers durable, corrosion-resistant performance you can count on.

Made in Mainland China.

Key Features

• Premium Brass/Copper Construction: Resists corrosion, oxidation, and wear for long-lasting service in wet and pressurised environments.
• 1/2" BSP Female Thread: Compatible with standard BSP-threaded pipes, valves, and fittings — widely used in plumbing and irrigation worldwide.
• 4mm–19mm Barb Range: Available in multiple barb sizes to suit a wide variety of hose inner diameters — choose the size that matches your hose.
• Secure Barbed Connection: The serrated barb tail grips the hose firmly to prevent slipping and minimise leaks without the need for clamps (clamp use recommended for higher-flow applications).
• Rated Up to 850 kPa: Handles moderate operating pressures suitable for household water systems, garden hoses, drip irrigation, and pneumatic lines.
• CE Certified: Meets European conformity standards for safety and quality.
• Nipple-Type Design: Compact and easy to install in tight spaces; no special tools required.

Specifications

Common Applications

• Garden drip irrigation and hose systems
• Workshop air lines and pneumatic tools
• Household and commercial plumbing connections
• Water pumps and filtration systems
• Aquariums, pond equipment, and hydroponic setups

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For guidance on selecting the right pipe fittings and understanding BSP thread standards, visit the NIST resource on pipe and fitting standards.

Learn more: Garden hose

Frequently Asked Questions

Q: What is a BSP thread and will this fitting work with my existing pipes?

A: BSP stands for British Standard Pipe, a widely adopted thread standard used in plumbing and irrigation systems across Australia, the UK, Asia, and many other regions. The 1/2" BSP female thread on this fitting is compatible with standard 1/2" BSP male-threaded valves, pipes, and connectors. If you're unsure, check your existing fittings with a thread gauge or compare the thread pitch to BSP specifications.

Q: How do I choose the right barb size for my hose?

A: Match the barb size to the inner diameter (ID) of your hose. For example, if your hose has a 12mm internal diameter, select the 12mm barb fitting. A correctly sized barb creates a snug, secure fit — too small and the hose may leak; too large and it may be difficult to connect or could damage the hose.

Q: Do I need hose clamps with this barb fitting?

A: For low-pressure applications such as garden drip irrigation, the barb design alone typically provides a reliable hold. For higher-flow or higher-pressure applications (closer to the 850 kPa maximum), using a hose clamp over the barb connection is recommended to ensure a leak-free seal and extra security.

Q: Is this fitting suitable for drinking water use?

A: The fitting is made from brass (copper alloy) with no high-concern chemicals listed. However, if you intend to use it in a potable (drinking) water system, please verify local regulations and standards for brass fittings in your region, as requirements may vary.