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Bunsen burner, DIN 30665, with air regulation, needle valve and economy flame

DIN burner with air regulation, needle valve and economy flame not completely switchable according to standard 30665. Therefore, a small flame continues to burn even when the gas tap or needle valve is closed. The gas supply must be shut off at the central shut-off in the laboratory.
Fuel: Natural gas, Propane gas
Type: Needle valve

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