The Solder Ring Obtuse Elbow (15mm)—often referred to as a 135-degree elbow—is a specialized plumbing fitting designed to redirect a 15mm copper pipeline through a gentle, obtuse angle rather than a sharp 90-degree turn. Ideal for domestic central heating networks, hot and cold water supply systems, and complex routing where gradual pipe alignment is required, this fitting helps minimize flow resistance and navigate subtle structural changes.
 
Manufactured from high-quality copper conforming to relevant British Standards (such as BS EN 1254), the fitting features pre-formed rings of lead-free solder embedded directly within each socket. This integrated solder design eliminates the need for manual solder wire application during assembly, ensuring an exact, pre-measured amount of metal is drawn evenly into the joint via capillary action when heated, creating a robust, permanent, and leak-free seal.
 
Engineered for efficient installation by professional plumbers and experienced practitioners, the obtuse elbow requires standard pipe cleaning, fluxing, and blowtorch heating to activate the internal solder rings. Whether you are contouring pipework around architectural features, optimizing flow dynamics in a heating system, or completing an intricate plumbing layout, this trade-quality obtuse elbow delivers dependable structural integrity, excellent corrosion resistance, and long-term hydraulic performance.