Geneq > Teaching Equipment > Fluid Mechanics

Capillary viscometer

Model PBC 100

The capillary viscometer is delivered complete with instrumentation and includes a technical and instruction manual. The liquid to be studied is placed in a thermostatically controlled pressurized container which is connected to a capillary tube that is also found in a thermostatically controlled environment. The liquid is continuously agitated to ensure that it remains homogeneous. The unit can be dismantled. UTILITIES Electricity : 230 V single phase - 50/60 Hz Compressed air: 1 bar minimum DIMENSIONS Length : 760 mm Width : 560 mm Height : 600 mm Weight : 60 kg

Application

From measurement of flow and loss of pressure in the capillary, the viscometer can be used: For a study of Poiseuille (laminar) flow of a known viscosity liquid To determine precisely the radius of the capillary tubes To measure the dynamic viscosity of a liquid and to study how this varies with temperature To study the shear force in viscous fluids and rubbing forces on the tubes during laminar flow.

Specifications

Characteristics Capillary tubes : 0.2 mm and 0.4 mm - length 400 mm Temperature scale : 90°C to ± 0,5°C Pressure scale : 0 – 1 bar Control and measurement appliances The unit is manufactured with : - A manometer – Tube of Bourdon Ø160 - A thermometer - A stopwatch for level measurement - Two graduated pipettes - A heat regulated bath - A magnetic agitator