Brass 3 Bar PRV for Alpha CB50 / CD50 Boiler – 1/2″ BSP M/F
A reliable pressure‑relief valve built especially for Alpha CB50 and CD50 boilers. Crafted from solid brass, this valve automatically vents steam when the system pressure climbs above 3 bar, protecting the heat exchanger, pump and other components from overload.
Why it matters
– Safety first – The valve opens at the set 3 bar limit, preventing dangerous over‑pressure situations.
– Boosts efficiency – By maintaining proper pressure, the boiler runs smoother and uses less fuel.
– Long‑lasting durability – Brass construction resists corrosion and wear, ensuring consistent performance over years of service.
Key specifications
– Fit: 1/2″ BSP (male to female) connection
– Maximum working pressure: 3 bar
– Dimensions: 72 mm length × 40 mm width
– Material: High‑grade brass
– OEM equivalent: Part # 1.018091
Designed as a direct replacement for the original Alpha part, this PRV offers the same fit and function without compromising quality. Ideal for homeowners, installers, and service technicians seeking a dependable safety valve that keeps boilers running safely and efficiently.
Keywords: Brass pressure relief valve, 3 bar PRV, Alpha boiler spare part, CB50 CD50 safety valve, 1/2\” BSP PRV.





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