Pressure Viscometer

Apparent viscosity is used to evaluate pumpability and handling characteristics of greases and is also suitable for analysis of adhesives, sealants and other semi-solid products. The sample is forced through a capillary by means of a gear pump-driven hydraulic system and the resulting pressure in the system is measured. Apparent viscosity is then calculated from the flow rate and pressure. Eight different capillaries and two pump speeds are used to determine the apparent viscosity at sixteen shear rates. Conforming to ASTM D1092 and related specifications Mechanically refrigerated low temperature model Low Temperature Pressure Viscometer – Consists of power, hydraulic and grease systems with refrigerated test chamber. Hydraulic system includes constant displacement gear-driven metering pump, hydraulic oil reservoir with 50-mesh screen, stainless steel tubing, high pressure valve and fittings. Drive motor has interchangeable 40 and 64 tooth gears for two-speed operation. Stainless Steel Grease Cylinder Assemblies (3) Thermocouples (3) Set of Stainless Steel Capillaries (Nos. 1-8) Interchangeable Pressure Gauges (4) Interchangeable Pump Drive Gears, 40 and 64-tooth Set of Wrenches (3) Conforms to the specifications of: ASTM D1092 Operating Range: performs apparent viscosity determinations at sixteen different shear rates Low Temperature Pressure Viscometer Temperature Range: ambient to –65°F (–54°C) Temperature Control Precision: ±0.5°F (±0.3°C) throughout the operating range Test Chamber Medium: denatured alcohol 115V 60Hz 220-240V 50Hz 220-240V 60Hz