BSP Brass Pipe Fittings – Elbow & Union Connectors, Female/Male, 1/2" 3/4" 1"

BSP sizes refer to the nominal bore of the pipe, not the outer diameter. For example, a 1/2" BSP fitting typically has an outer thread diameter of around 20.9mm (≈0.82"). Measure your existing pipe thread or check your system documentation. Generally, 1/2" BSP suits most household water lines, while 3/4" and 1" are common for higher-flow or main supply applications.

Brass BSP fittings of this type are generally rated for working pressures up to 150 PSI (≈10 bar) in typical plumbing applications. Actual ratings may vary by size and configuration — contact us to confirm for your specific use case.

Yes. Brass is naturally corrosion-resistant and performs well in outdoor and humid environments. For highly corrosive or saltwater-exposed applications, additional sealing or alternative materials may be advisable.

These fittings use BSP threads and are generally compatible with copper, brass, and steel pipes sharing the same thread standard. Adapters are typically required for PVC or push-fit systems. Always verify thread compatibility before installation.

Yes. For a leak-free seal, apply PTFE (Teflon) thread tape or a suitable pipe thread sealant to the male threads before assembly. This is standard practice for all BSP threaded fittings and is not included with the product.

A standard elbow changes the direction of flow (90°) and creates a fixed, permanent connection. A union fitting allows you to disconnect and reconnect the joint without cutting the pipe — ideal for maintenance access points on boilers, pumps, or filters that need periodic servicing.

The 45° union fitting changes the pipe direction at a 45-degree angle while also providing a disconnectable union joint. This is useful in tight spaces where a full 90° turn is not possible and where future serviceability is needed.

For a single direction change, one elbow fitting is typically sufficient. For a union connection point (e.g., isolating a pump), one union fitting is generally all you need. We offer 2-, 3-, and 5-piece packs for projects requiring multiple connection points or for keeping spares on hand.