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Spray nozzles & systems

Which material is most suitable for the spray process?

Listed below are a number of factors that should be considered when selecting material for a specific nozzle. Wrong choice of material is likely to affect nozzle performance and lifespan. We are happy to assist and advise on which material is most suitable for your spray process. Please contact us.

Material selection Knowledge Bank Nozzles

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.

Material DescriptionBETE Material No.(DIN) DescriptionTemp. Rating (°C)Trade Name
Brass4brass230°
Naval Brass64400°
BronzeBronze400°
L.C. Steel72carbon steel210°
30351.4305430°
30461.4301430°
304L1.4306430°
31671.4401430°
316L201.4404430°
317211.4440430°
317L221.4438430°
416241.4005430°
Tungsten7H
Alumina26
904L741.4539430°
Alloy 20702.4660490°Carpenter® 20
Nickel Alloy M30C372.4360/2.4366540°Monel
Nickel Alloy 600352.48161100°Inconel® 600
Nickel Alloy 6253B2.48561100°Inconel® 625
Nickel Alloy 800331.48761010°Incoloy® 800
Nickel Alloy 825342.48581010°Incoloy® 825
Nickel Alloy B312.4800/2.4810760°Hastelloy® B
Nickel Alloy G322.46191100°Hastelloy® G
Nickel Alloy G30492.46031100°Hastelloy® G30
Nickel Alloy C276812.48191100°Hastelloy® C276
Nickel Alloy C222A2.46021100°Hastelloy® C22
Nickel38Nickel350°
Titanium11Titan540°
tantalum40Tantalum1500°
zirconium61zirconium540°
Cobalt Alloy 691050°Stellite® 6
SNBSC ceramic621660°Refrax
RBSC ceramic591380°
PTFE3PTFE150°Teflon
PVDF36PVDF120°Kynar ®
PVC1PVC60°
CPVC16CPVC100°
Polypropylene2Polypropylene70°
UHMW1780°
Polyurethane6980°
ABS1570°