Particle Drag Coefficients

LabTek is one of the leading manufacturer, supplier & exporter of the Fluid mechanics lab equipment or Hydrology lab equipment. We Manufacture Flow Meter Demonstration Unit, Computer Controlled Subsonic Wind Tunnel, Multi-Purpose Teaching Flume, Fluid Friction Measurements, Complete Fluid Mechanics Laboratory – axial fan demonstration unit, F1-10, Osborne Reynolds’ Apparatus, Air Flow Studies, Fluid Properties & Hydrostatics Bench, Hydrogen Bubble Flow Visualisation System, Subsonic Wind Tunnel, Laminar Flow Table, Multi-Pump Test Rig, Pipe Surge and Water Hammer Apparatus, Pipe Network Apparatus, Compressible Flow Unit, Precision Pressure Gauge Calibrator, Particle Drag Coefficients, Dead Weight Pressure Gauge Calibrator, Hydrostatic Pressure etc.. Also We do manufacture the Test Rigs as per customers requirement. At LabTek, we understand the dynamics of each customer requirement of Fluid mechanics lab equipment or Hydrology lab equipment and the variety of demands of their experimental & research system. We help you with innovative design Fluid mechanics lab equipment or Hydrology lab equipment that makes the system more reliable, robust, cost-effective and economical in long run, saving substantially on your power and maintenance cost. Particle Drag Coefficients, pressure testing equipment plumbing, plumbing pressure test pump, plumbing tools and equipment, gas pressure testing equipment, water pipe pressure test kit.

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Model NO-FM-026

DESCRIPTION: The Viscosity and Particle Drag apparatus is a simple falling-sphere viscometer. The self-standing unit holds two glass tubes filled with the test fluids, for comparisons and to minimize draining and refilling of the fluids after experimentation. The back plate has a low-voltage backlight so students can easily see the test spheres through the fluid.

Students fill the two tubes with their chosen test fluid, and then select a sphere of the correct density and size for the fluid. They drop the sphere into the test fluid at the top of he glass tube. They then use a stopwatch (included) to measure the time taken for the sphere to fall a set distance down the tube.

When the test sphere reaches the bottom of the tube it enters a valve that the students turns, dropping the sphere into a collection vial for recovery. The valve system minimizes the fluid loss from the tube and helps when draining the tube after the tests are complete.

Students may also make their own use shapes to test in the unit. The shapes must fi t through the valve at the base (maximum 8 mm in any single dimension). Suitable test fluids include water, thin machine oil, castor oil and motor oil. The apparatus can be used with any fluid that can be safely handled and is chemically compatible with the wetted parts of the equipment – glass and PTFE.



  • This module is mounted on an anodized aluminum structure with painted steel panel.
  • Observation of laminar, transition and turbulent flows.
  • Association of laminar, transition and turbulent flows with their 
corresponding Reynolds number.
  • Observation of the parabolic velocity profile.


  • Methacrylate test pipe with an airfoil-shaped inlet section:
  • Inner diameter: 16 mm. External diameter: 20 mm. Length: 750 mm.
  • Water supply tank with level fitting and connection for it’s feeding. It has a section that makes it possible to generate a constant pressure at the tank inlet. Capacity: 2.4 ltr.
  • Dye or vegetable coloring tank with a valve and an injection needle, tankcapacity:0. 4 ltr.
  • Coloring matter injection is regulated with a needle valve. Control valve to adjust the water flow in the experiments. Easy and quick coupling system built-in.



  • L x W x H: 600-x600 x 800 mm
  • Weight: 40kg
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Particle Drag Coefficients, pressure testing equipment plumbing, plumbing pressure test pump, plumbing tools and equipment, gas pressure testing equipment, water pipe pressure test kit.

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