Crown Degassing Dispersion Nozzles

Divide the total flow going onto the distribution plate by the flow of one nozzle at your deck head — for example 100 L/min on the 1/2 in. orifice at 9 L/min per nozzle needs 12 nozzles.

Flow per nozzle rises with deck head, so the figures are quoted at 150 mm (6 in.), the middle of the manufacturer’s published curve; send us your total flow and deck head and we will confirm the orifice and nozzle count.

Water falling through a plain orifice tends to spiral, and once it does the distribution pattern changes with head height and the tower stops stripping evenly across its plan area — the crown breaks up the spiral so the pattern holds.

Yes — the orifice inserts are interchangeable within the same body, so you can step up or down an orifice size on site without replacing the nozzles.

The telescoping body has lock-in tabs that engage as it is pushed into a standard 44 mm (1-3/4 in.) hole in the deck plate, with no glue or fasteners.

Request a quote with your total flow, deck head and the plate area you need to cover, and we will come back with the orifice size, nozzle count and price.