La Marzocco GB5/FB80 Steam Valve Assembly Complete divina-gloria-parts/astoria-divina-gloria-c-t-s-2002-solenoid-group that can mean the valve

that can mean the valve is stuck shut and pressure has nowhere to bleed off

square face

Made from thick

somewhere around "auto drip"

La Marzocco GB5/FB80 Steam Valve Assembly Complete divina-gloria-parts/astoria-divina-gloria-c-t-s-2002-solenoid-group that can mean the valveLa Marzocco GB5 FB80 Complete Steam Valve Assembly Complete rebuild assembly (cap and gasket) for the GB5 FB80 steam valve; the anti vacuum valve is sold separately and not included. Assembly is required on installation. COMPATIBILITY Fits: La Marzocco GB5 FB80 steam valve Works with: Anti siphon anti vacuum valve (sold separately) INSTALLATION Moderate difficulty. La Marzocco's official technical bulletin covers important updates to this valve (TB