Oil nozzles type LE are special versions of standard nozzles type OD with built-in cut-off valve. In combination with an oil pump with LE-function (e.g. BFP 21 LE) the LE nozzle prevents drop formation when preheating and from oil expansion in the nozzle line at burner stop. Alternatively the LE-function can be obtained by using a preheater with incorporated LE-valve (FPHB-LE) in combination with an OD-nozzle. LE nozzles are available with 3 spray angles, 2 spray patterns and capacities from 0.40 to 2.0 Usgal/h. The nozzles are equipped with sintered bronze filter.