The ULKA EX5, EP5 are the world's most common pumps sold today - made outside Milan Italy by the CEME group.
Coffee machines use vibration pumps for tank filled machines and rotary vane pumps for plumbed machines.
Blue star coffee carries Ars and Ulka vibration pumps and can be delivered in Ireland, UK, Europe, USA, Canada or worldwide in a little as 2 days. If your pump is not listed contact customer services and we will try to locate it for you.
Vibration pumps are used in many appliances including coffee machines. Coffee machines use vibration pumps for tank-filled machines and rotary vane pumps for plumbed machines.
The most common ULKA pumps are Vibration Pump EX5 230V and Vibration Pump EP5 230V and are found in Rancilio, Delonghi, Gaggia, Ascaso, Lelit, Francis, Bezzera and many other household espresso machines.
Inside the vibration pump, there is a metal coil, and inside the coil is the pump piston, which sits on a spring. When the coffee button is turned on, the coil is energized and it becomes magnetic, which makes the piston move back and forth very quickly. The piston moves so quickly it causes the pump to vibrate - hence the name Vibration pump. When this happens, the pressure pulsates water through the espresso machine at approximately 60 pushes a second.
Vibration pumps are smaller than rotary pumps and are cheaper and easier to replace, so are found mainly in-home or prosumer coffee machines.
They have a few limitations:
Vibration pumps typically have a 5-7 year life span - depending on use, before they start losing pressure.
Espresso coffee vibration pumps are easy to replace, approx. 15 minutes - all our Ulka pumps come with simple instructions
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