Windchill Risk and Reliability Desktop Help > Windchill Prediction > Part Parameters Required for Predictions > Mechanical Model > Entering Poppets and Sliding Action Valves > Particle Quantities
Particle Quantities
The table below provides typical values for the number of particles (mg) under 10 micron per hour per GPM (N10) produced by hydraulic components of a given material.
Component
Contaminant Rate
Gear Pump
7.5 g/gpm rated flow
Vane Pump
25.0 g/gpm rated flow
Piston Pump
6.8 g/gpm rated flow
Directional Valve
0.008 g/gpm rated flow
Cylinder area
3.2 g/in squared swept
Entering Poppets and Sliding Action Valves