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What is a Viscous Liquid Screw Pump?

asked Jun 12, 2015 in Mechanical by cchang219 (2,310 points)

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answered Jun 14, 2015 by sicalamanto (1,560 points)
A contacting design where the rotors ride on a hydrodynamic film between the bore and rotors.  For this design the viscosity of the product is critical and affects the maximum differential pressure at which the pump can operate.  An example of this pump type would be the original Sier-Bath liquid twin-screw pump.