Espresso Machine 1/4" Boiler Safety Valve /double-portafilter metal leaf applications … the

metal leaf applications … the list goes on and on

and machine diagnostics

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Espresso Machine 1/4" Boiler Safety Valve /double-portafilter metal leaf applications … the1 4" Espresso Machine Boiler Safety Valve 2. 1 Bar A pressure relief safety valve sized for home and small volume single boiler espresso machines, calibrated to release at 2. 1 bar (30. 45 psi). SPECIFICATIONS Calibration pressure: 2. 1 bar (30. 45 psi) Connection: 1 4" COMPATIBILITY Fits: home and small volume boiler espresso machines with a 1 4" safety valve port Replaces: Nuova Simonelli #98013021 (current), which superseded the earlier 1. 8 bar