Rancilio Expansion Valve Screen Brand_Suncor Stailess This small retention spring keeps

This small retention spring keeps the doser cam properly tensioned and engaged inside the doser mechanism

If you are chasing a group head weep and the cap looks fine

Fits: Azkoyen

Doser cable for all Mazzer electronic 'E' models (except Lux D)

Note this does not include the mounting gasket

Rancilio Expansion Valve Screen Brand_Suncor Stailess This small retention spring keepsRancilio Expansion Valve Screen This stainless steel screen filters debris out of the expansion (pressure relief) circuit on Rancilio machines. Rancilio has since superseded this individual screen with a complete replacement assembly. SPECIFICATIONS 9. 5 mm diameter, stainless steel COMPATIBILITY Fits: Rancilio expansion valve assemblies Replaces: Superseded by complete assembly (screen + 5. 28 x 1. 78 mm NBR 70 Shore o ring OR 02021 + M6 x 10 mm