Steinen Oil nozzle 4.00GPH / 60S

The Steinen Oil nozzle 4.00GPH / 60S is an oil nozzle with a flow rate of 4 GPH, a 60 ° spray angle and an S spray pattern. It is used to atomise fuel oil in a burner, forming the spray that is mixed with air and ignited. The 60 ° angle defines the width of the spray cone, and the S pattern defines the shape of the spray. The flow rate of 4 GPH states the volume of oil the nozzle passes per hour at its rated pressure.

Nozzles of this type are selected by matching the flow rate, spray angle and spray pattern to the burner and combustion chamber, and by matching the thread and body dimensions to the nozzle holder. Mounting forms differ in thread size and in body length or shape, so the old nozzle must be compared with the replacement before ordering. The nozzle seat and the holder must be clean and undamaged, and the nozzle must be tightened to the torque given for the burner without distorting the body.

Nozzles of this kind commonly fail by clogging of the internal passages or the orifice, by wear of the orifice that increases flow, or by a distorted spray pattern from deposits or damage at the tip. On the equipment this appears as a smoky flame, unstable or pulsating combustion, difficulty in ignition, or a change in the shape of the flame. The nozzle strainer, the nozzle seat and the pump pressure are checked, and the spray pattern is compared with the specified angle and pattern.