HATCH/HP, THT/HATCH dynamic smoke hatches with roof fan F400/F300, up to ~131 000 m³/h
Country: · Model: HATCH/HP, THT/HATCH
The dynamic smoke hatches HATCH/HP and THT/HATCH combine a sealed roof casing with a motorized lid and a built-in axial fan certified to EN 12101-3 for 400 °C/2 h and 300 °C/2 h. The maximum airflow in the tables is about 76 000 m³/h for HATCH/HP and 131 000 m³/h for THT/HATCH.
- Type
- roof smoke hatch with motorized opening and a built-in axial smoke extraction fan
- Fire resistance
- 400 °C/2 h and 300 °C/2 h, EN 12101-3, certificate 2797 CPR 840443
- HATCH/HP — sizes / power / airflow
- 40…100; 0.75…22 kW; up to ~76 000 m³/h
- THT/HATCH — sizes / power / airflow
- 40…125; 0.75…37 kW; up to ~131 000 m³/h
Technical specifications
| Type | roof smoke hatch with motorized opening and a built-in axial smoke extraction fan |
|---|---|
| Fire resistance | 400 °C/2 h and 300 °C/2 h, EN 12101-3, certificate 2797 CPR 840443 |
| HATCH/HP — sizes / power / airflow | 40…100; 0.75…22 kW; up to ~76 000 m³/h |
| THT/HATCH — sizes / power / airflow | 40…125; 0.75…37 kW; up to ~131 000 m³/h |
| HATCH/HP casing | 60 mm PUR sandwich panels, no thermal bridges; heat transfer < 0.39 W/(m²·K) |
| THT/HATCH casing | galvanized steel, 100 mm lid insulation and 60 mm side insulation; < 0.47 W/(m²·K) |
| Air permeability / watertightness (HATCH/HP) | class 4 (UNE-EN 12207) / class E 1350 (UNE-EN 12208) |
| Sound insulation (HATCH/HP) | Rw = 32 dB (UNE-EN ISO 10140-2) |
| Opening actuator | IP65, 230 V AC 50/60 Hz, service life > 11 000 cycles, limit switches |
| Snow load | SL 1000 |
| Versions | HATCH/HP/IE5 — IE5 motor; HATCH/LP — compact |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
In its normal state the hatch is closed and insulates the roof, and on an external signal from the fire station or a smoke detector the lid opens and the fan forcibly removes smoke and hot gases (certificate 2797 CPR 840443). This speeds up evacuation, makes the firefighters' work easier and reduces the risk of new ignition points and structural collapse. In HATCH/HP the side walls and the lid, 60 mm thick, are made of sandwich panels with polyurethane foam, with heat transfer below 0.39 W/(m²·K), air permeability class 4 to UNE-EN 12207, wind-driven rain resistance class E 1350 to UNE-EN 12208, sound insulation Rw = 32 dB to UNE-EN ISO 10140-2, and snow load SL 1000. In THT/HATCH the casing is galvanized steel, with 100 mm lid insulation and 60 mm side insulation, and heat transfer below 0.47 W/(m²·K). The opening actuator has an encapsulated IP65 mechanism, a 230 V AC 50/60 Hz supply, a service life of more than 11 000 cycles and position limit switches.
How to choose
HATCH/HP has sizes 40–100 and a power of 0.75–22 kW, while THT/HATCH has sizes 40–125 and 0.75–37 kW. There is a HATCH/HP/IE5 version with an IE5 motor and a compact HATCH/LP. The delivery set includes service switches for the actuator and the fan with auxiliary contacts and a transition curb for roof mounting, while the fire alarm control system is not included. The hatches are installed in single-storey industrial buildings, warehouses, logistics and cold storage centers and retail facilities where daily ventilation is also needed.
Request a price and lead time
HATCH/HP, THT/HATCH dynamic smoke hatches with roof fan F400/F300, up to ~131 000 m³/h. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What happens to the hatch in a fire?
On an external signal from the fire station or a smoke detector the lid opens and the fan removes smoke and hot gases.
What thermal insulation do HATCH/HP and THT/HATCH have?
For HATCH/HP the heat transfer is below 0.39 W/(m²·K), and for THT/HATCH below 0.47 W/(m²·K). The THT/HATCH lid has 100 mm insulation and the sides 60 mm.
What power and airflow do these hatches have?
HATCH/HP 0.75–22 kW and up to 76 000 m³/h, THT/HATCH 0.75–37 kW and up to 131 000 m³/h.
Is fire alarm control included in the delivery set?
No, the fire alarm control system is not included in the delivery set.
What are the power supply and service life of the opening actuator?
230 V AC 50/60 Hz, IP65 mechanism, service life of more than 11 000 cycles.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.


