STEEL INDUSTRY

PNR Italia presents the new Dplus series

The new series of full cone spray nozzles is even more reliable, versatile, with improved spray distribution

PNR Italia presents the new Dplus series

The new series of full cone spray nozzles is even more reliable, versatile, with improved spray distribution

A product tested by thousands of customers like the D full cone nozzle deserved a further improvement to consolidate its characteristics of reliability and versatility.

That is why PNR Italia is proud to present the new series of Dplus full cone spray nozzles, the evolution of the full cone nozzles from the D series.

The design phase

Our technical department used CFD technology to design the Dplus series. The goal was to obtain a nozzle whose spray angle did not vary from the inlet pressure, between 1 and 10 bar.

The classic full cone nozzles – also known as turbulence nozzles- use a specially shaped vorticator positioned at their inlet, giving a rotational velocity to the fluid flowing through the spray nozzle. Due to the rotational speed of the fluid, the jet of water exiting the nozzle orifice expands by centrifugal force, assuming the shape of a full cone.

The spray angle, which can vary from 15 ° to 120 °, depends on the design of the nozzle but also on the supply pressure. Our technicians overcame this obstacle by designing a perforated vorticator -now already patented- that guarantees the homogeneity of the spray angle regardless of the inlet pressure.

Dplus series spray nozzle – section
Patented vorticator inserted

Technical information

Dplus

The Dplus series nozzles provide a full cone jet with a characteristic spray angle independent of the inlet pressure, between 1 and 10 bar.

The spray distribution is perfectly balanced and symmetrical with very uniform coverage of the circular impact area, while the perforated vorticator –now already patented– that guarantees homogeneity of the spray angle regardless of the inlet pressure.

The large free internal passages prevent the nozzle from clogging even with large particles and guarantee low local speeds with a consequent high resistance to wear, while the controlled internal turbulence maintains stable and reliable performance over the entire range of working pressures.

CONSTANT SPRAY ANGLE
AS THE INLET PRESSURE CHANGES

Above 3bar the spray angle is stable, even when the inlet pressure varies

UNIFORM DISTRIBUTION
AS THE INLET PRESSURE CHANGES 

If the distribution is constant as the pressure varies, the nozzle’s wetting action is constant, controllable, and repeatable.

IMPROVED
ANTI OCCLUSION 

 

A larger free passage with a more regular geometry means less occlusion

Applications of the Dplus series

Request a sample from the Dplus series

Are you interested in the new Dplus nozzles? Fill out the form to request a sample!