Progressive cavity pump
Maintenance issue solution soft durometer chrome stators
Double chrome plating to increase thickness of coating
Safeguard - auto turn off at high pressure
Replace rotor twice between one stator
Check effectiveness through volumetric discharge compared to inflow
A Cardan joint is the same as a universal joint, and was invented by Gerolamo Cardano in the 16th century.
Brand: Moyno
Stator lining is made of hard rubber
Once the stator wears, the RPM no longer correlates reliably with flow
Failure mode: wear on rubber stator and chrome plating
Created by René Moineau, in 1930, while trying to make a jet engine compressor