VBM Vibration Pump Opv Kit  €31.99

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RRP €37.00Save 14%
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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. Vibration pumps produce approx 15-18 bar - 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.


​​​​​​Kit comes with:

  • 1 x Brass bypass valve  
  • 1 x 30 cm Silicon tube - discharges excess water back into the water tank.
 Technical specifications:
  • Material: Brass
  • Size:1/8 female x 1/8 male
  • Length: 35mm wide x  65mm height.
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