Valve drain for Siemens/Bosch TK4 BSH coffee machines

Function of the valve in the brewing unit

The valve is part of the coffee machine's brewing unit and controls the flow of water, air or pressure during the individual phases of coffee preparation. It opens and closes the path for the medium at precisely defined moments, ensuring correct dosing, pressure build-up or removal of excess water or foam from the system.

When the part stops doing its job

• Water or steam leaking outside the standard brewing cycle
• Incorrect or fluctuating pressure during extraction
• Weak or unstable crema, or a change in coffee taste
• Unusual noises or hissing from the brewing unit
• Error messages relating to pressure or flow

Why timely replacement pays off

A worn or leaking valve disrupts the entire coffee preparation process and can also damage other parts of the brewing unit due to incorrect pressure. Timely replacement restores smooth operation of the unit and stable beverage quality.

How to choose the right part

Valves differ depending on their specific function and shape, so please check compatibility in the product table before purchasing.

Compatible with

• EQ.5 TE501501DE
• EQ.5 TE501503DE
• EQ.5 TE501505DE
• TES50159DE Verocafe
• EQ.5 TE502506DE
• EQ.5 TE503501DE Macchiato
• EQ.5 TE503509DE Macchiato
• EQ.5 TE503521DE Macchiato