Closed type DN15 DN20 DN25 68 degree fire sprinkler
Provide closed-type foam fire sprinkler
✔️ Size DN15 DN20 DN25
✔️ temperature 68 degrees
✔️ K : 30-53, Made in China, stamp of inspection certificate of fire protection kit
✔️ Contact us to buy this nozzle right away with us
Place of Origin: China
Model Number:BC-FS-32602
Type: foam fire sprinkler
Model number: PTW
Connecting Thread: BSP,NPT Optional
K factor: 30-53
Working pressure: 0.3-0.6
Installation Type: pendent
Material: Brass+Stainless Steel Net
.png "Closed type DN15 DN20 DN25 68 degree fire sprinkler spray nozzle foam for safety protection")
The reticular foam nozzle (PTW series) is the specialized unit to form and spray air foam, which is mainly used in low expansion extinguishing system. Foam proportionate system supply foam solution for these nozzles. When foam solution was conveyed to nozzles by pipelines, the nozzle inhales air at outlet to make foams and put out fire.
Working Principle:
When pressurized foam solution flows through the cavity of the nozzle, its pressure will be reduced because of throttling. That will result in vacuum and inhale air. The foam solution then become foams after dispersed by nozzle.
| Model |
Working Pressure (MPa) |
Working Pressure (MPa) |
Flow Coefficient |
3m Height Spray Diameter (m) |
| PTW1.0 | 0.3~0.5 | 60 | 30 | ≥3 |
| PTW1.2 | 72 | 36 | ||
| PTW1.5 | 90 | 45 | ||
| PTW1.75 | 105 | 53 |
.png "Closed type DN15 DN20 DN25 68 degree fire sprinkler spray nozzle foam for safety protection")
.png "Closed type DN15 DN20 DN25 68 degree fire sprinkler spray nozzle foam for safety protection")
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