Air atomizing nozzle Variflo™

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The key advantage of the Variflo Nozzle over a simplex oil burner nozzle is flexibility; large turndown ratios with better atomization. With the Variflo Nozzle using a constant supply pressure, the discharge flow rate varies approximately as the square of the bypass pressure. This means that at minimum flow, the atomization pressure is reduced approximately 34%. With the simplex nozzle, the discharge flow rate varies as the square root of the supply pressure. This means that to obtain 1/2 of the design flow rate, the supply pressure must be reduced by 1/4 of the original pressure. This pressure is too low for good atomization. Spray Characteristics • Good atomization over a wider flow range • Wider spray angles at lower flow rates • Less subject to clogging • Less buildup of carbon and gum residue