The stabilizer top allows gas to emerge at a low velocity in an annular ring acting as a pilot for the principal flame and steadying it.
These burners control gas flow by a needle valve for easy flame adjustment.

Appliance School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Burner With Flame Stabilizer Burners used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and School Lab Appliance for Engineering Teaching Lab in Universities