E61 Group Head Bottom Piston – Drain Valve, Brass

Drain valve piston for E61 groups

After each shot the E61 releases leftover pressure through a drain valve under the group. If water keeps dribbling into the drip tray or the puck stays soupy, this lower piston or its seal is the usual suspect.

Short brass body, flat drive key

It is a compact brass piece with a flat-sided key that engages the piston above it and a rubber face seal in the barrel. Being the shortest of the three E61 pistons, it is easy to tell apart on the bench.

Specifications

• E61 Bottom Piston Part: E61 drain valve – bottom piston
• E61 Bottom Piston Supplier code: PS1523453
• E61 Bottom Piston Material: Brass with rubber seal
• E61 Bottom Piston Group type: E61
• E61 Bottom Piston Pack size: 1 piston

Which machines take it

Old supplier notes list Bezzera, ECM, Rocket, Profitec, Isomac, La Pavoni, Grimac and Fiorenzato E61 machines; if yours is unusual, compare with the part you remove. It sits under the E61 middle infusion piston, and a 73×57×8 mm group seal is worth replacing in the same job.

We service E61 machines across Melbourne – see our repair and servicing page if you would like us to fit it for you.