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VBM Vibration Pump Opv Kit €34.99

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Reviews

See All Coffee Pumps Vibration | See All VBM Products

1/5

Postage to Ireland on this item is €5.50

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Description
Fits models
How to use
Reviews (6)
Q&A (6)

Details:

This is one of our best-selling modifications - easy to install and is a game changer.

This OPV (Over Pressure Valve) is a wonderful and inexpensive modification for any machine with a vibration pump.

This OPV enables you to reduce and adjust the pump pressure.

Some vibration pumps produce approximately 15-18 bars - fitting an OPV drops it to 9/10 bars approx.

Some machines may be set to a higher extraction pressure - those that come with pressurized baskets will typically extract at 12-15 bars. Finely ground espresso tastes better when extracted at 9 bars, using non-pressurized baskets - greater crema and body are achieved.

Fit most vibration pumps, with a little fitting.

Included:

1 x Brass bypass valve - assembled
1 x 50cm Silicon Water Inlet hose tube - discharges excess water back into the water tank.

💡 Not included:

Ptfe Teflon Pipe 4X6mm - Fits on the 1/8" fitting
Silicon Tube Clamp x 1 - Holds the silicon tube in place
PTFE Sealing Tape - In case the threads leak.
Pump Elbow Fitting 1/8 X 6mm male or Straight | Fits pump and connects the 6mm PTFE pipes used in most machines.
Universal Push fitting 1/8 x 6mm - Straight or elbow | Fits pump and connects the 6mm PTFE pipes used in most machines.
Universal push fitting 1/8"x 4mm - Straight or elbow | Fits pump and connects the 4mm PTFE pipes used in Sage Breville models.

Universal Push fitting 1/8 x 6mm

Technical specifications:

Material: Brass
Size:1/8 female x 1/8 male
Length: 35mm wide x 65mm height.

There are 6 reviews with an average rating of 5.00

5.00 out of 5 stars

Emi from RomaniaVerified03 February 2025 18:20

Managed to upgrade the OPV on a Breville/Sunbeam Mini Barista. The OPV does make the difference extracting at 9 bar. Better taste, rich body and better water flow. Here is a link on reddit to see how I did it. Extra 1/8 fittings are required.
https://www.reddit.com/r/espresso/comments/1igup98/brass_adjustable_opv_upgrade_brevillesunbeam_mini/

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Blær from Iceland asks

Hello! Wonderful upgrade, but I don't have a pressure gauge, so I'm having some trouble finding 9.5 bars. I was wondering how low does the pressure go and how high, so I can "aim" the screw? :) Thanks in advance!

Blue Star Coffee Replies:

Hi Blaer, I understand that it is adjustable to 9-10 bars. Fitting the OPV reduces pump pressure from 16 bar to 10 bars.

Javier from Mexico asks

Hello! Has this valve been successfully used in a Breville Barista Express machine? Could it work to replace the stock OPV and reduce the output pressure?

Blue Star Coffee Replies:

Hi Javier, I don't know, we would only get this feedback from reviews. Usually, it will reduce by 1-2 bars maximum. See this link from a Reddit user who has success with this OPV https://www.reddit.com/r/espresso/comments/ot08ba/breville_sage_barista_express_opv_upgrade/

Mihir from United States asks

Do these come pre-lubed with silicone grease applied at the spring/plunger?

Blue Star Coffee Replies:

Hi Mihir, They don't come with lubrication, inside is a spring and grommet - the o ring keeps it tight and from getting loose over time. Lubrication is unnecessary.

Simon from Denmark asks

Hello I need a Opv for my nuova sim. Oscar 2- Can I use this one?

Blue Star Coffee Replies:

Hi Simon, One of our customers successfully installed this OPV on a Nuova Simonelli Oscar I - so probably will fit - but cannot confirm.

Frederic from Canada asks

Hello, is there a way with this OPV to get 11 bar pressure? Is there a tension spring inside that can be replaced? Thanks!

Blue Star Coffee Replies:

Hi Frederic, You can replace the spring,by unscrewing the screw anticlockwise. We don't have other springs, other than what comes with this.

Rom from Israel asks

what size is the provided Silicon tube?

Blue Star Coffee Replies:

Hi Rom, it's 50cm x 4x7mm. Insert "Silicon Water Inlet hose tube" into our search bar for more info.

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VBM Vibration Pump Opv Kit €34.99