Pump valve connector for Delonghi ETAM 36, EN 520 and EC 9255 coffee machines

Pump Connector

The pump connector joins the water hose to the pump body or to a valve in the coffee machine's water circuit. It ensures a tight, secure connection through which water flows during coffee preparation or when supplying the steam wand. It typically includes a rubber or silicone seal that must fit perfectly to keep the joint from leaking.

Signs of wear

Brittle or cracked rubber on the connector causes water to leak around the pump, resulting in a pressure drop and uneven dosing. The coffee machine may report a flow error, the pump may run more noisily, or it may run dry and draw in air through the leaky joint instead of water.

Why timely replacement pays off

A leaking connector gradually dampens the surrounding components and electronics, which can lead to a more serious failure of the entire water system. Timely replacement is a quick and inexpensive fix that prevents more serious damage to the pump.

How to choose the right part

• Check the shape and number of outlets on the connector against the original part
• Verify compatibility in the product's compatibility table
• When replacing it, also check the condition of the adjacent hoses

Compatible with

• EC890
• ETAM36.365.M PrimaDonna Xs
• ETAM36.365.MB PrimaDonna Xs
• ETAM36.366.MB PrimaDonna Xs
• EN520.B Nespresso Lattissima
• EN520.DB Nespresso Lattissima
• EN520.PW Nespresso Lattissima
• EN520.R Nespresso Lattissima