This pressure safety relief valve is engineered to protect espresso machine boilers by releasing excess steam pressure. Rated at 1.8 bar calibration pressure with a 6.3 Kg/h steam outlet capacity, it meets CE-PED safety standards and features a 3/8" male connection. Compatible with: Astoria, Argenta, Azkoyen, Bezzera, Brasilia, Carimali, Cimbali, Expobar, and Faema espresso machine models including numerous commercial and semi-commercial series. This valve is a genuine replacement component designed to maintain safe operating pressure within the boiler. Its certified design ensures compliance with European pressure equipment regulations and reliable safety operation across a wide range of professional espresso machines.