A reliable Worcester Bosch Greenstar 3 Bar Brass PRV – 1/2 BSP Push‑Fit is essential for keeping your boiler safe and efficient. This premium brass pressure‑relief valve automatically opens when the system pressure exceeds 3 bar, protecting the heat exchanger, pump and pipework from over‑pressure damage. Its push‑fit 1/2″ BSP connection makes installation quick and tool‑free, while the robust brass construction ensures long‑lasting performance even at temperatures up to 110 °C.
Key features
– Releases pressure automatically at the 3 bar safety limit
– Prevents burst pipes and protects boiler components
– High‑quality brass body for durability and corrosion resistance
– Compact size (60 mm × 45 mm) fits easily into tight spaces
– PN 10 rating for reliable operation
Technical specs
– Equivalent to part 87161064310 (non‑OEM)
– Max working pressure: 3 bar
– Max operating temperature: 110 °C
– Connection: 1/2″ BSP push‑fit
Compatible models – Designed for a wide range of Worcester Bosch Greenstar units, including the 25CDI, 30CDI, 35CDI, 40CDI combi boilers, the Greenstar 12I, 15I, 18I, 21I, 24I series (NG & LPG), and many classic and ERP models.
Choose this brass PRV for peace of mind: it maintains correct system pressure, helps the boiler run efficiently, and extends its service life. Perfect for DIY installers and professional technicians alike.
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