Blue Star Coffee Portafilter Pressure Gauge large  €24.99

• Any model with a overpressure valve OPV + 3/8'' portafilter spout
• Rancilio Silvia
• Gaggia classic - To adjust the over-pressure valve on a gaggia classic click here

Wont fit:

• Ascaso dream, steel, arc, ellipse or basic 57mm  - it will however fit ascaso steel 58mm professional version.
• Portafilters that have push-on spouts such as La Marzocco original portafilters.
• Models that have over-pressure valves or pump pressure adjustments.

1. Unscrew your portafilter spout first. (Check that you can unscrew 1st.)
2. Assemble the gauge to the vertical valve that comes with this kit.
3. Screw on this 3/8'' gauge on the porta filter nozzle.
4. Place portafilter into the group as you would normally do.
5.   This is used running water through the PF only - dont use with coffee !
6. Turn on the coffee button and watch the pressure build up on the gauge.
7. You may have to tighten the valve or gauge.
8. Adjust the OPV to the required pressure*
9. Adjust a rotary vane pump*- usually a screw at the side of the pump - (clockwise to increase pump.) 

*While 9 bar is a standard acceptable pressure for brewing espresso - you may have to adjust pressure to 9.2 or 9.3 bars in order to extract at 9 bars.

Fits: