Hollow cone nozzles create a hollow cone pattern with a ring-shaped impact area by producing small to medium-sized drops. These nozzles have a large, unobstructed flow passage that reduces clogging, enabling uniform distribution at various flow rates and pressures. The hollow cone spray pattern is well-suited for applications such as cooling, washing, gas scrubbing / cooling, dust control, and fire protection. Choose Your Exact Hollow Cone Nozzles.