Delavan nozzle ID ?

PHM

Do all Delavan nozzles include this and I've just never noticed?

What do the letters indicate about the nozzle? NOT the pattern letter - the other letters.

The nozzle in question is a Delavan 1.50 - 45ºA. Those two numbers are stamped into two of the hex flats - as usual. One and a half gallons of oil per hour at a one hundred psi pump pressure - with a forty five degree cone pattern being produced by the oil existing the nozzle. OK; got it.

But . . . on the flat between those two numbers - the letters: WDA are stamped in.

What does the WDA indicate ?

Steamhead

If I had to guess, I'd say it's a production code of some sort.

dko

STEVEusaPA

For Delavan, WDA (hollow) or WDB (solid) are special nozzles for pressure atomizing (waste oil heaters) or humidifying (whatever that is).

Steamhead

@PHM , was this nozzle installed in your burner? If so, what is the burner make and model?

SuperTech

STEVEusaPA said:

For Delavan, WDA (hollow) or WDB (solid) are special nozzles for pressure atomizing (waste oil heaters) or humidifying (whatever that is).

The humidifying part is in reference to those awful plenum rotting mist humidifiers that were sold at one time.  They used a burner nozzle to spray water in the plenum of a furnace.  I only saw a couple of them in the wild. All of them had rotten plenums and rusted out heat exchangers.  

Yeah it will add humidity, at the expense of the furnace and plenum. Just another bad idea...

EBEBRATT-Ed

And the "A" after the 45 means hollow spray pattern

STEVEusaPA

SuperTech said:

STEVEusaPA said:

For Delavan, WDA (hollow) or WDB (solid) are special nozzles for pressure atomizing (waste oil heaters) or humidifying (whatever that is).

The humidifying part is in reference to those awful plenum rotting mist humidifiers that were sold at one time.  They used a burner nozzle to spray water in the plenum of a furnace.  I only saw a couple of them in the wild. All of them had rotten plenums and rusted out heat exchangers.  

Yeah it will add humidity, at the expense of the furnace and plenum. Just another bad idea...

Never knew that. Thanks!