Vibratory pump LF L1331083

A vibratory pump moves water through an espresso machine by converting electrical energy into rapid mechanical oscillations. A coil inside the pump creates a magnetic field when powered, pulling and releasing a spring-loaded piston dozens of times per second. Each oscillation draws a small volume of water into the chamber and forces it out under pressure, delivering a steady flow to the brew group without the need for a rotary motor or gears. This method produces the consistent pressure required for espresso extraction while keeping the pump compact and quiet enough for countertop installation.

To operate, the pump is wired into the machine's 24VAC circuit. Once power is supplied, the pump begins oscillating immediately, pushing water from the reservoir or boiler through the system. The operator monitors the machine's pressure gauge to confirm the pump is delivering the expected flow rate. No manual priming or adjustment is required; the pump self-regulates its output based on the resistance of the coffee puck and the machine's internal plumbing.

The EP5GW is constructed with a sealed coil and piston assembly, designed to withstand continuous use in a hot, humid environment. The housing is built to resist corrosion and thermal stress, ensuring stable performance even during prolonged operation. Electrical connections are made via spade terminals, allowing secure attachment to the machine's wiring harness.

The 24VAC 50/60 Hz power requirement means the pump runs on a low-voltage circuit, reducing electrical hazards in a wet environment. The 48 W rating indicates a modest power draw, suitable for integration into machines with limited electrical capacity. This specification also ensures compatibility with standard commercial espresso machine transformers.

Cleaning is limited to external inspection and ensuring the inlet and outlet ports remain free of scale or debris. The sealed design prevents internal access, so maintenance focuses on keeping the surrounding machine components clean to avoid contaminants entering the pump.

This vibratory pump is a direct replacement for models used in DE JONG DUKE, WMF, CEME, and ULKA espresso machines, matching the original specifications for voltage, frequency, and mechanical fit.

In the LF catalogue, the EP5GW is listed under spare parts for espresso equipment, positioned as a high-precision component for professional coffee service.