Quick Answer: Callendar and Barne's Apparatus (Continuous Flow) uses a borosilicate glass tube open at both ends, with a nichrome wire heating coil about 40 cm long wound spirally inside along its axis. The element sits in a felt-lined wooden case with a hinged cover.
Last updated: October 2026
Key Features
Borosilicate glass tube, open at both ends
Nichrome wire heating coil about 40 cm long, wound spirally along the tube axis
Two metal pots of thick brass sheet; leak proof when fitted
Easily detachable element in a felt-lined wooden case with hinged cover
Brass level tank fitted on a stand; leads carried to terminals
Supplied without thermometers or meters
Technical Specifications
Specification
Value
Tube
Borosilicate glass, open at both ends
Heating element
Nichrome wire coil, about 40 cm long, wound spirally inside along the axis
Pots
Two, thick brass sheet
Level tank
Brass, fitted on stand
Case
Wooden, lined with felt, hinged cover
Connections
Leads carried to terminals
Not included
Thermometers, meters
About This Product
Built for continuous flow work in the Heat range, the apparatus runs a nichrome heating coil along the axis of a borosilicate glass tube between two thick brass pots, with a brass level tank on a stand completing the set. The element can be taken out easily, its leads end at terminals, and the assembled unit is leak proof.
Frequently Asked Questions
Q1. What is the heating element in this apparatus? A coil of nichrome wire about 40 cm long, wound spirally inside the glass tube along its axis. The element is easily detachable.
Q2. Are thermometers or meters included? No. The apparatus is supplied without thermometers or meters.
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