Falling Sphere Viscosimeter Manufacturer,Supplier and Exporter in India
Product Code : EL-SML-12120
Quick Answer: The Falling Sphere Viscosimeter is a wall-mounted apparatus with two transparent tubes, 1300 mm high and 94 mm in diameter, in which balls of different diameters and materials fall through a liquid so that its viscosity can be found from their terminal velocity.
Last updated: October 2026
Key Features
- Support panel for wall mounting, carrying two transparent tubes of 1300 mm height and 94 mm diameter
- Tubes lit by a neon tube
- Two vats and two valves for recovering the balls and draining the tubes
- Set of balls of various diameters in stainless steel, aluminium and plastic
- Stop watch included for timing the fall
- Runs on a 220 V single phase, 50 Hz supply
Technical Specifications
| Specification | Value |
|---|---|
| Mounting | Support panel positioned on a wall |
| Tubes | 2 transparent tubes, height 1300 mm, diameter 94 mm |
| Lighting | Neon tube |
| Balls | Various diameters; stainless steel, aluminium, plastic |
| Timing | Stop watch |
| Dimensions | 1500 × 450 × 200 mm |
| Net weight | 18 kg |
| Supply | 220 V single phase, 50 Hz (other voltages on request) |
About This Product
A falling sphere viscometer is used in fluid mechanics and physics classes to show how a liquid resists flow. A ball is released in a vertical tube of liquid and, after a short distance, falls at a steady speed because gravity, buoyancy and viscous drag are in balance. Students time the fall with the stop watch and use the terminal velocity to work out the viscosity of the liquid. With the viscosity known, the same readings let them find the drag coefficient of spheres and compare balls of different diameters and materials.
Frequently Asked Questions
Q1. What can be measured with the Falling Sphere Viscosimeter?
It is used to find the viscosity of liquids in the transparent tubes from the terminal velocity of falling spheres, and the drag coefficient of spheres when the viscosity of the liquid is known. Students can also produce drag coefficients for other geometric shapes.
Q2. What is supplied with the apparatus?
It has two transparent tubes lit by a neon tube, two vats with two valves for recovering the balls and draining the tubes, a set of balls in stainless steel, aluminium and plastic, and a stop watch.
Q3. What electrical supply does it need?
It needs a 220 V single phase, 50 Hz supply. Other voltages are available on request.
Related: Structural Mechanics Lab, Flow Visualisation Wind Tunnel, Water Hammer Demonstration Unit, Level Measurement Trainer.
For a quotation on the Falling Sphere Viscosimeter, contact School Lab Equipment India.