WD — Water Debit
Headspace
Distribution / Tamping
Animation Control
Ready
Machine Info
WD (Water Debit) = Water yield in 10s, reflecting flow speed and push.
Higher WD means pressure catches up to puck resistance faster, maintaining high pressure longer.
Higher WD means pressure catches up to puck resistance faster, maintaining high pressure longer.
Core Logic by Pump Type
RotaryConstant 9 bar → Resistance determines actual pressure
VibrationNo OPV exceeds 9 bar → Resistance determines actual pressure
Pressure Curve
Comparison
WD Contrast
Pressure vs Time
Imaginary Puck Resistance
Actual Extraction Pressure
Machine Limit
WD
80
g / 10s
Real-time
0.0
bar
Peak Pressure
—
bar
High Pressure
—
sec (>7.5 bar)
Extraction Info
—
Adjust parameters on the left to see the curve change.
Puck Resistance by Method
Heavy
Normal
Uneven
Heavy Tamping: Denser structure, higher initial resistance (solid = imaginary, dashed = actual pressure).
Uneven: Channeling causes early collapse. Method differences are smaller than WD effects.
Uneven: Channeling causes early collapse. Method differences are smaller than WD effects.
WD Comparison: 60 / 80 / 100 g/10s
WD 60 Low Flow
WD 80 Base
WD 100 High Flow
Three curves facing identical puck resistance (gold). Different WD leads to vastly different ramp-ups and high-pressure durations.
WD 80 / Normal / Rotary → 9 bar peak (Base).
WD 80 / Normal / Rotary → 9 bar peak (Base).