Ulka EX5 Vibration Pump 230V 48W Original Water Pump

Ulka EX5 vibration pump 230V | Original water pump for espresso machines

What makes the Ulka EX5 special?

The Ulka EX5 is one of the most widely installed vibration pumps worldwide in espresso machines and fully automatic coffee machines. Thanks to its robust design, NSF certification, and high-quality brass connection, it impresses with reliability and a long service life.

With a maximum pressure of up to 15 bar, the EX5 delivers enough power for optimal espresso extraction. In practice, most machines operate in the range of 7 to 12 bar, so the pump always provides sufficient reserves.

Who is this pump suitable for?

The Ulka EX5 is suitable for owners of:

• Portafilter machines

• Fully automatic coffee machines

• Commercial coffee machines

• Repair and maintenance businesses

Ideal as a replacement for:

• Pressure loss

• Loud pump noises

• Lack of water delivery

• Defective or worn original pumps

Our assessment from workshop and service

The Ulka EX5 is one of the most commonly used replacement pumps in our workshop. The brass connection in particular makes it more durable and higher quality than the cheaper Ulka EP5 version with plastic connection.

In older espresso machines, replacing the pump can often significantly improve delivery performance and pressure stability.

Advantages

✓ Original Ulka quality product

✓ Up to 15 bar delivery pressure

✓ High-quality brass connection

✓ NSF certified

✓ Technology proven millions of times

✓ Suitable for numerous manufacturers

✓ Easy integration into existing systems

Disadvantages

✗ Not every machine uses the same connections

✗ Installation requires basic technical knowledge

✗ O-ring not included

Technical Data

• Manufacturer: Ulka

• Model: EX5

• Voltage: 230 V

• Power: 48 W

• Frequency: 50 Hz

• Maximum pressure: 15 bar

• Water temperature: max. 20 °C

• Inlet: Ø 6 mm

• Outlet: 1/8" internal thread brass

• Length: 123 mm

• Connection terminal: 6.3 x 0.8 mm

• Integrated diode: 1N4007P

• NSF certified

Compatibility

The Ulka EX5 is used, among others, in machines from:

• ECM

• Bezzera

• Gaggia

• Ascaso

• La Pavoni

• Quick Mill

• Astoria

• Wega

• Fiorenzato

• Jura

• Saeco

• Krups

• Spidem

• AEG

as well as numerous other manufacturers.

Installation note

For a secure seal, we recommend using Teflon tape.

Important note:

• No O-ring is included.

• Threaded connections should be sealed professionally.

• Always unplug the machine before working on it.

Frequently Asked Questions (FAQ)

How can I recognize a defective vibration pump?

Typical signs are no water flow, significantly reduced brewing pressure, or unusually loud operating noises.

What is the difference between Ulka EX5 and EP5?

The EX5 features a high-quality brass connection and is considered a more durable and robust variant.

Does the pump maintain 15 bar continuously?

No. Most espresso machines operate at about 9 bar brewing pressure. The 15 bar represents the maximum possible pump pressure.

Can I replace the pump myself?

With basic technical knowledge, replacement is possible. If unsure, we recommend installation by a professional workshop.

Comparison to alternatives

Ulka EX5

✓ Brass connection
✓ Higher quality
✓ Very durable

Ulka EP5

✓ More affordable
✗ Plastic connection
✗ Less robust

Those looking for a high-quality and durable replacement pump are usually better off with the Ulka EX5.

Application examples

• Replacement of a defective espresso machine pump

• Maintenance of older portafilter machines

• Repair of fully automatic coffee machines

• Restoration of brewing pressure

• Professional workshop repairs