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Extending the operating life of a nozzle guarantees savings in economic and environmental terms.

Using nozzles which are suitable for the activity being carried out and therefore with optimal performances is certainly a guarantee of high quality but also of energy and water saving. That’s right: using a nozzle with poor performances will have very high costs in economic but also in environmental terms.

Selecting the right material for a nozzle is very important, since the operating life of a nozzle depends as well on its construction material.

What are the factors that affect a nozzle’s life span?

Wear
Wear caused by solid particles suspended in the liquid being sprayed;

Chemical corrosion
Chemical corrosion caused by the sprayed liquid;

Corrosion
Chemical corrosion caused by the external environment where a nozzle is used;

Shock
Exposure to mechanical shocks;

Temperature
Exposure to high temperature.

A nozzle can gradually deteriorate due to abrasion and, as this occurs over time, the orifice or the internal passage widens. This leads to a greater flow and to a greater consumption of water, causing losses in economic terms for the company but also in environmental terms for the planet.

What materials are available for nozzles, washing heads and atomizers?

The choice of a material directly depends on the operating conditions, i.e. on the pressure, on the temperature, on the type of fluid used and finally on the type of connection required. What follows is a list of the main materials at your disposal for nozzles, washing heads and atomizers. Our sales department will be able to direct and help you in choosing the most suitable material for your application.

BRASS
It is an alloy of copper and zinc, it melts at a few hundred degrees, has low hardness and excellent machinability. It is the most popular material for normal pressure applications (that of the aqueduct, which does not require the use of a pump), has no temperature limits up to about 100 ° C.

BRONZE
It is an alloy of copper and tin, with high hardness and resistance to the marine atmosphere. It is used for particular naval applications and fire-fighting components.

STAINLESS STEEL
Stainless steel is an alloy of iron and carbon, with the addition of other elements such as chromium, nickel, molybdenum, vanadium, titanium. The most popular steels in our sector range from 303 to 316L.
The latter is the one used for special applications, thanks to its greater hardness and resistance to erosion but above all for its resistance to chemical attacks. The various types of steel have different degrees of weldability, from 303 -which is poorly weldable- up to 304 and 316L which allow excellent quality.

SUPERALLOY
It’s a special type of stainless steels, in which the percentages of chromium, molybdenum, nickel and other valuable alloying elements are much higher than in stainless steels and guarantee exceptional performance in very hostile environments and with serious risks of corrosion.

TITANIUM
It is a material that has remarkable mechanical properties and great lightness. Very resistant to chemical attack, modest hardness.

THERMOPLASTIC MATERIALS
These are polymers that have high melting points and can be processed by injection molding. The most used for making nozzles are polyvinyl chloride (PVC), polypropylene (PP), polyvinylidene fluoride (PVDF), each one with specific characteristics of temperature and resistance to chemicals. The choice of the most appropriate material is usually made based on the compatible with the materials of other parts of his plant, such as pipes and valves.

TEFLON
Teflon (polytetrafluoroethylene – PTFE) is a plastic material that cannot be melted or processed by injection molding. It’s synthesized under pressure and therefore Teflon parts can be produced by machine tools: this reduces its possible applications. Teflon is a very refined material, because it cannot be attacked by any chemical agent among those commonly used in standard industrial processes.

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