Reynolds Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-TWL-11778
Quick Answer: The Reynolds Apparatus shows laminar and turbulent flow by feeding dye through a capillary into water flowing along a borosilicate glass tube with a bell mouth entrance. Flow rate, measured with the measuring cylinder and electronic stopwatch, gives the Reynolds number for each run.
Last updated: October 2026
Key Features
Borosilicate glass tube with bell mouth entrance from a 40 litre constant head tank.
Capillary tube in copper or stainless steel, centred in the bell mouth.
Dye fed from a small stainless steel vessel on top of the tank through polythene tubing.
Cock at the outlet end to vary the flow.
FHP pump circulating water from a 60 litre sump tank.
Measuring cylinder and electronic stopwatch for flow measurement.
Technical Specifications
Specification
Value
Test tube
Borosilicate glass, bell mouth entrance
Capillary tube
Copper / stainless steel
Constant head tank
40 litres
Sump tank
60 litres
Dye vessel
Stainless steel
Pump
FHP
Flow measurement
Measuring cylinder, electronic stopwatch
About This Product
Opening the outlet cock in steps changes the velocity in the glass tube, and the dye thread from the capillary shows whether the flow is laminar or turbulent at each setting. Students time a volume in the measuring cylinder to get the flow rate, calculate Reynolds number and match it to the flow type they observed. Educational Lab Equipments can supply and export the Reynolds Apparatus to Bahrain, Belize, Botswana, Poland, Sri Lanka and Burundi.
Frequently Asked Questions
How is the type of flow identified?
Dye injected through the central capillary forms a visible stream in the glass tube; its behaviour shows the flow type, which is then related to the calculated Reynolds number.
What tank capacities are provided?
The constant head water tank holds 40 litres and the sump tank 60 litres, with an FHP pump circulating the water.
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