THT-TM axial fans for tunnels, metro and mines, Ø up to 3550 mm, up to 1 000 000 m³/h, 4000 Pa, F400/F300/F200
Country: · Model: THT-TM
The THT-TM reversible axial fan for ventilation shafts of tunnels, metro and mine workings has an impeller diameter of up to 3550 mm, an airflow of up to 1 000 000 m³/h (277 m³/s) and a pressure of up to 4000 Pa. The fan supplies fresh air every day, and in a fire it removes smoke and heat, with fire resistance of 200, 300 or 400 °C for 2 h to EN 12101-3.
- Type
- reversible axial fan for ventilation shafts of tunnels and metro (TM version — Tunnel and mining)
- Maximum diameter
- 3550 mm
- Maximum airflow
- 1 000 000 m³/h (277 m³/s)
- Maximum pressure
- 4000 Pa
Technical specifications
| Type | reversible axial fan for ventilation shafts of tunnels and metro (TM version — Tunnel and mining) |
|---|---|
| Maximum diameter | 3550 mm |
| Maximum airflow | 1 000 000 m³/h (277 m³/s) |
| Maximum pressure | 4000 Pa |
| Fire resistance | 200 °C/2 h, 300 °C/2 h, 400 °C/2 h (EN 12101-3) |
| Motors | class H, IP55 (IP65), IE3 and higher, 50/60 Hz; power code in hp (example — 110 hp) |
| Speeds | 2, 4, 6, 8 or 12 poles (2900…500 rpm) |
| Mine versions | single-stage SS — up to 3000 Pa; multi-stage MS — total pressure up to 5000 Pa; Ø 315…1800 mm, up to 360 000 m³/h |
| Installation | horizontal or vertical; external terminal box; vibration and temperature sensors |
| Versions | THT-TM; THT/ATEX-TM (ATEX cat. 3, Ex II 3G) |
| Testing | ISO 13350, ISO 5801, FAT |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The fans are installed in shafts connecting a tunnel with the surface, in longitudinal, transverse and semi-transverse ventilation schemes of road and railway tunnels and the metro. The impellers are fully reversible, installation is horizontal or vertical, and pressure is increased with guide vanes. The terminal box is moved outside, and the fans are equipped with vibration and temperature sensors. The motors have insulation class H, IP55 protection (IP65 on request), IE3 efficiency and higher, and a frequency of 50 or 60 Hz. The model code contains the impeller diameter in centimeters, for example 160, the number of poles 2, 4, 6, 8 or 12 (from 2900 to 500 rpm), the power in hp, for example 110, and the fire resistance class. The THT/ATEX-TM version has an ATEX category 3 certificate (Ex II 3G). Casings and dampers are made of carbon steel with an epoxy coating, galvanized steel or stainless steel.
How to choose
For mining work and tunnel construction, single-stage SS fans with a pressure of up to 3000 Pa and multi-stage MS fans with a total pressure of up to 5000 Pa are made, with a diameter of 315–1800 mm and an airflow of up to 360 000 m³/h. For tunnel shafts THT-TM with a diameter of up to 3550 mm is taken. The fire resistance class of 200, 300 or 400 °C is set by the design fire scenario of the tunnel. Grilles, flanges, flexible connectors, hatches, anti-vibration supports, silencers and dampers are selected in addition. The manufacturer also supplies control cabinets with BMS/SCADA integration via Modbus and performs CFD calculations, and tests each installation to ISO 13350 and ISO 5801, and on request with factory acceptance tests FAT.
Request a price and lead time
THT-TM axial fans for tunnels, metro and mines, Ø up to 3550 mm, up to 1 000 000 m³/h, 4000 Pa, F400/F300/F200. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What are the maximum size and pressure of THT-TM fans?
Diameter up to 3550 mm, airflow up to 1 000 000 m³/h (277 m³/s), pressure up to 4000 Pa.
What fire resistance classes does the THT-TM have?
200 °C/2 h, 300 °C/2 h and 400 °C/2 h to EN 12101-3. The class is part of the model code.
Is there a version for explosive atmospheres?
Yes, THT/ATEX-TM with an ATEX category 3 certificate (Ex II 3G).
How is the THT-TM model code read?
It contains the impeller diameter in centimeters (for example 160), the number of poles, the power in hp (for example 110) and the fire resistance class.
What is the motor voltage of large tunnel fans?
The source does not state the motor voltage for large tunnel fans, and high-voltage versions are not confirmed. The voltage is clarified when ordering.
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.