Heating and Insulating Tops

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 This mantle helps prevent vapor condensation in the upper half of a flask during distillation of high-boiling materials.  The tops are designed for use with Series M, TM, or STM mantles.  They protect the flask, the solutions, and the laboratory in these ways:

1.  from drafts, which would disturb the reflux ration during fractionation;

2.  from flying glass of flask implosions in high-vacuum distillations;

3.  from falling objects

4.  from thermal strain between top and lower half of flask during high-temperature operations.  With a glass-fabric construction and laced-side opening, the elliptical hole accomodates 1, 2, and 3-neck flasks.


Heating Tops

Item No.
Capacity
Price
250 ml 
$248.00
500 ml 
$307.00
Call To Order
1 L 
$342.00
2 L 
$356.00
Call To Order
3 L 
$392.00
Call To Order
5 L 
$496.00
Call To Order
12 L 
$827.00
22 L 
$893.00
50 L 
$1,388.00
Call To Order
72 L 
$1,599.00
Call To Order

Insulating Tops

Item No.
Capacity
Price
250 ml 
$219.00
500 ml 
$236.00
1 L 
$263.00
2 L 
$281.00
3 L 
$287.00
Call To Order
5 L 
$386.00
12 L 
$593.00
Call To Order
22 L 
$672.00
50 L 
$1,088.00
Call To Order
72 L 
$1,273.00
Call To Order