In terms of nozzle material wear life, which is the least durable option?

The least durable option in terms of nozzle material wear life is brass. Brass nozzles, while they possess good resistance to corrosion, do not offer the same durability against wear caused by abrasive materials as other options like stainless steel, ceramic, or polymer.

Stainless steel is highly durable and can withstand significant wear, making it a strong choice for heavy-duty applications. Ceramic nozzles are even more durable in terms of abrasion resistance, often lasting longer than metal options. Polymer nozzles, while generally less durable than the metal options, can still resist chemical corrosion and have applications where wear life is not the primary factor.

Overall, brass, while useful for certain applications due to its good characteristics, falls short in terms of wear resistance compared to stainless steel, ceramic, and certain polymers, making it the choice with the least wear life in this context.