A reliable Worcester Bosch Greenstar 3 Bar Pressure Relief Valve (PRV) keeps your boiler safe and efficient. Engineered to open automatically when pressure exceeds 3 bar, this valve protects the heat‑exchanger, pump and pipework from over‑pressure damage, extending the life of your system.
Key benefits
– Automatic safety release at 3 bar – prevents burst pipes and costly repairs.
– Manual lever for easy testing or resetting.
– Durable construction: PA66 polymer reinforced with 30 % glass fibre offers excellent heat resistance and long‑term stability.
– Standard 1/2″ BSP female connection fits all 15 mm pipe installations.
Technical specs
– Equivalent to OEM part numbers 87161064310 / 87160108760 / 87186434270
– Height 65 mm, width 50 mm
– CE‑marked (2797) for compliance
– Maximum working pressure 3 bar
This PRV is compatible with a wide range of Worcester Bosch models—from the 9I ERP series to the 40 CDI Combi—making it a versatile replacement for both gas‑ and LPG‑fired units.
Choose this premium‑quality pressure relief valve for peace of mind, smoother boiler operation, and a longer service life. It’s the smart, cost‑effective way to keep your heating system running safely.
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