Which material is most suitable for the spray process?

Temperature

Melting or softening of material establishes maximum temperature limits, which are listed in the table below (Temp. Rating (°C)). These temperature limits must be reduced when corrosion, oxidation, or chemical attack are present.

Corrosion

Corrosion can lead to wear and tear, increase flow rate, and affect droplet size and spray pattern. This, in turn, leads to increased costs due to a less efficient process, increased amount of maintenance and equipment damage downstream.

A corrosive environment, or if the liquid being sprayed is corrosive, limits the choice of material. If alloy is not suitable for a specific process, plastic can be an option if temperature allows. Another option is to use spray nozzles made of ceramic material.

Chemicals

There are few general guidelines to this complex subject, but the material used for piping might provide a useful indicator of a suitable nozzle material. If you know which chemicals the process contains, we can assist you in finding a the right material for your process.

Abrasion

Hardened stainless steel, Cobolt Alloy 6, tungsten carbide and ceramic materials are often used in processes where liquids with abrasive properties are sprayed.

Cost

Sometimes, of course, cost needs to be taken into account, but it is important to consider the cost of the investment over the full lifespan of the nozzle.

Material

Below is a list of the most requested spray nozzle materials. The list includes the standard specification (DIN), maximum temperature limit and BETE material code.