Non-return valve spring LF L1250071

A non-return valve spring maintains one-way flow in the water circuit of professional coffee machines. It presses against the valve seat, allowing water to pass in the intended direction while blocking reverse flow. This prevents contamination of the fresh water supply and keeps pressure stable during brewing cycles.

The spring is installed inside the non-return valve assembly. Once fitted, it requires no adjustment or intervention during operation. The valve opens under forward pressure from the pump, and the spring returns it to the closed position when pressure drops, ensuring the seal remains tight between uses.

Constructed as a helical spring, this component is sized to fit the specified valve housing. Its dimensions match the internal diameter and length of the valve mechanism, providing consistent tension without binding or slack.

This spring fits a range of coffee machines from COFFEE QUEEN, CREM, EXPOBAR, FIORENZATO C.S., and GRIMA. The listed models include EB61, MARKUS-OLD, MEGACREM, NEW-ELEGANCE, DIAMANT, G10, MARKUS, MARKUS SILVER, BRICOLETTA, CAMPANILE, COLOMBINA, DUCALE, FENICE, LIDO, MURANO, SAN MARCO PIAZZA, RIALTO, RIO, VOLANTE, and MIA.

Replacement is straightforward: isolate the water supply, disassemble the valve housing, remove the worn spring, and install the new one in the same orientation. Regular inspection of the valve assembly helps maintain water integrity and machine performance.