Darcy friction factor λ
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Rotation servo valve
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Friction in seals
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Collective line
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Reversing motor
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Suction valve
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Return line
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Silencer
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Loop line
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring
Pressure regulator (zero-stroke regulator)
Geared pump/motor Gear pump Gear pump flow meter Gerotor motor Graduated glass scale Grooved ring seal Group signal line Kinematical viscosity v Kv factor (speed/stroke gain) Kv value (of valves) Quad-ring