A reliable Brass 3‑Bar Relief Valve (1/2″ BSP male × female) is essential for keeping Biasi boilers safe and efficient. Made from solid brass, this pressure‑relief (PRV) valve automatically vents excess pressure once the system exceeds 3 bar, protecting the heat exchanger, pump and other components from costly damage.
Why choose this valve?
– Automatic safety – releases pressure at the preset 3 bar limit, preventing over‑pressurisation and possible burst failures.
– Durable construction – high‑quality brass ensures long‑term corrosion resistance and dependable performance.
– Optimised efficiency – maintains correct operating pressure so the boiler runs smoother and lasts longer.
Key specifications
– Connection: 1/2″ BSP (male × female)
– Maximum working pressure: 3 bar
– Dimensions: 72 mm L × 40 mm W
– Material: Brass (equivalent to part number BI1001112)
Compatible Biasi models
20SE NG, MVP UK COMBI NG, PRISMA 24S/24SE/24SER/24SR/28S/28SE COMBI NG, SAVIO GAIA 424S/424SR/428S COMBI NG.
Designed as a direct replacement for the original part, this valve offers a cost‑effective solution without compromising safety or performance. Ideal for installers, technicians, and DIY enthusiasts who need a trustworthy pressure relief valve for their Biasi boiler system.
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