A standard 1-inch (DN25) foam jet fountain nozzle typically requires an operating pressure of 0.6 to 1.8 bar (60–180 kPa), delivering a water-air discharge volume of 3.6 to 6.0 m³/h (60 to 100 LPM / 15.8 to 26.4 GPM) to achieve a jet spray height of 2.0 to 4.4 meters. [1]

Typical Performance Values

• Working Pressure: 0.6 bar to 1.8 bar (approx. 8.7 to 26 PSI)

• Flow Rate (Water Volume): 3.6 m³/h to 6.0 m³/h (60 LPM to 100 LPM)

• Spray / Jet Height: 2.0 meters up to 4.4 meters (depending on pump capacity)

• Covering / Foam Diameter: 0.3 meters to 0.8 meters [1, 2]

Operational Factors

• Design: These nozzles use an air-injector (Venturi) principle to mix atmospheric air with the water stream, creating a thick, frothy, bright-white column that is wind-resistant. [1, 3, 4]

• Water Level Independence: Most 1" foam nozzles operate independently of the pool or basin water level, making height adjustments dependent strictly on the pump's head pressure and flow rate. [3, 5, 6]