Spray Nozzle Data: fire_deluge
Spray nozzle performance data for fire protection, industrial cooling, gas scrubbing, dust suppression, and process applications. Covers full cone, hollow cone, flat fan, solid stream, misting, air atomizing, and NFPA 15 deluge nozzles. Key parameters: K-factor (Q=K*sqrt(P)), VMD/SMD droplet sizes, spray angle, flow rate, coverage area, material, and turndown ratio.
| nozzle type | spray angle flow key | K factor (gpm/psi^0.5) | droplet size SMD microns (micron) | droplet size VMD microns (micron) | flow rate equation | flow rate gpm (gpm) | free passage diameter in (in) | material | max temperature F (degF) | notes | operating pressure psi (psi) | spray angle deg (deg) | spray pattern | turndown ratio |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| fire_deluge | 120deg_10.0gpm_stainless_316 | 2 | 840 | 1,300 | Q=K*sqrt(P) | 10 | 0.28 | stainless_316 | 300 | NFPA 15 K=20 standard spray nozzle; 25 psi min per NFPA 15 Sec.4.2.2; Q=K*sqrt(P) validated at K=20 | 25 | 120 | full_cone | 2:1 |
| fire_deluge | 120deg_15.0gpm_brass | 2.372 | 900 | 1,400 | Q=K*sqrt(P) | 15 | 0.3 | brass | 212 | NFPA 15 open deluge nozzle; K=11.2 to 22.4 equivalent range; 120° coverage; fire suppression transformer/cable protection | 40 | 120 | full_cone | 2:1 |
| fire_deluge | 120deg_18.0gpm_brass | 3.6 | 975 | 1,500 | Q=K*sqrt(P) | 18 | 0.38 | brass | 212 | NFPA 15 K=18 spray nozzle; 25 psi minimum; high-challenge fire hazard; power transformer protection | 25 | 120 | full_cone | 2:1 |
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