Delavan Air atomizing nozzle DA1.5 38745-001

The Delavan DA1.5 air atomizing nozzle (SKU 38745-001) is a precision consumable for fuel oil burners. It delivers a flow rate of 1.5 GPH (5.6 l/h) with an 80° spray angle, atomizing fuel oil into a fine mist for combustion. The brass body is suited for fuel oil applications. This nozzle is designed for use in burners requiring air atomization.

When selecting a replacement nozzle of this type, verify that the flow rate, spray angle, and spray pattern match the burner manufacturer's specifications. The nozzle must be compatible with the burner's mounting thread and operating pressure. Compare these parameters with the existing nozzle or the burner data plate before ordering. Installation involves mounting the nozzle in the combustion head and ensuring proper alignment with the oil pump and solenoid valve.

Nozzles of this kind can fail due to clogging, wear, or improper atomization. Symptoms include sooting, pulsation, unstable ignition, or incomplete combustion. Check the nozzle for blockages or damage, and verify that the spray pattern and angle are correct for the burner.