The Vaillant Thermocompact TurboMax Plus Pro 3‑Bar PRV (3/4‑in BSP × 1/2‑in BSP) is a reliable safety valve that protects your boiler from excess pressure. When the system pressure climbs above 3 bar, the valve automatically opens, releasing steam or water and preventing damage to the heat exchanger, pump, or pipework. Made from a high‑grade brass alloy (CW617N), it offers excellent heat resistance and long‑term durability while meeting CE and UKCA certification standards.
Key features
– Automatic pressure release at 3 bar to safeguard the boiler
– Dual connections: 3/4‑in BSP threaded inlet and 1/2‑in BSP bottom outlet (30 mm OD / 21 mm ID)
– Compact dimensions: 70 mm height × 48 mm width
– Robust construction: brass alloy body, DN15 rating
– Ready to install: supplied boxed with all necessary fittings
Compatibility – Designed for a wide range of Vaillant models, including Aqua Plus, Thermocompact, and TurboMax series built between 2000 and 2008 (e.g., VUI 362‑7, VU 152/2‑5, VUW 242/2‑5, etc.).
Replacing a worn or missing PRV with this premium valve helps maintain optimal boiler efficiency, extends equipment life, and gives you peace of mind knowing your heating system is protected against over‑pressure incidents.
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