Acoustic Cabinet Fans ATEX – SIGMA https://sigmagroupsa.com Mon, 16 May 2022 06:43:07 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.2 https://sigmagroupsa.com/wp-content/uploads/2022/05/cropped-Sigma-Icon-32x32.png Acoustic Cabinet Fans ATEX – SIGMA https://sigmagroupsa.com 32 32 Belt driven cabinet fans CVTT Series https://sigmagroupsa.com/product/belt-driven-cabinet-fans-cvtt-series-2/ https://sigmagroupsa.com/product/belt-driven-cabinet-fans-cvtt-series-2/#respond Mon, 16 May 2022 06:41:42 +0000 https://sigmagroupsa.com/?post_type=product&p=4443

CVTT

Range of forward curved belt drive cabinet fans manufactured from galvanised steel sheet, internally lined with melamine acoustic insulation (M1). All models incorporate a double inlet low pressurecentrifugal fan mounted on anti-vibration mounts and flexible coupling at the discharge. Supplied as standard in horizontal discharge (code H) configuration with motor, pulley and belt assembly on the right hand side of the unit when viewed from the discharge end.

Motors
All motors are IP55, class F insulation.
Electrical supply:
– Three phase 220-240/380-415-50/60* Hz up to 3 kW.
(*Check Easyvent for 60Hz available models)
– Three phase 380-415V-50Hz, for higher power motors and two speed motors.
(See characteristics chart)
– Single phase 230V-50Hz, with a maximum of 1,5 kW (CVTB version).
All motor up to 2,2 kW are mounted onto the fan casing scroll.
All motor above 3 kW are mounted onto an adjoining support frame.
All three phase motors are speed controllable by frequency inverter.

On request
The belt-driven assembly can be supplied at the left hand side of the unit (TI version), Vertical discharge (code V) configuration.
Models fitted with circular inlet flanges.
Double thickness (double skin) panels with acoustic fireproof insulation (M0) of 17mm thickness fiberglass.
Two speed motors (4/8 and 4/6 poles).

ATEX

ATEX versions
On request, explosion proof versions in accordance to ATEX Directive, for three phase models up to 11 kW:
– ATEX Flameproof -Gas:
II 2G Ex d IIB T4
II 2G Ex d IIB+H2 T4 (with Ex d IIC T4 motor)
– ATEX Increased safety-Gas:
II 2G Ex e II T3

CVTT ATEX versions are supplied without melamine insulation.
To select CVTT refer to performance curves, or Easyvent.
The consumption data (A, W) of ATEX products may vary from the data shown in technical characteristic charts.

Attributes

  • CVTTbdp506

    Low noise level
    Acoustic insulation of 7 mm thickness flame retardant (M1) melamine foam reducing the noise level significantly.

  • CVTTbdp487

    Flexible coupling at the discharge
    To reduce vibration and noise transmissions to the installation.

  • CVTTbdp481

    Robustness
    Quality finishing, with aluminium corners providing a high robustness.

  • CVTTbdp531

    Versatile outlet discharge
    Vertical discharge models available under request.

  • CVTTbdp501

    Anti-vibration mounts
    The fan is mounted on base frame with silent-blocks to reduce vibration and noise transmissions to the installation.

]]> https://sigmagroupsa.com/product/belt-driven-cabinet-fans-cvtt-series-2/feed/ 0 Axial Flow Cabinet Atex Fans CGT-ATEX Series https://sigmagroupsa.com/product/axial-flow-cabinet-atex-fans-cgt-atex-series/ https://sigmagroupsa.com/product/axial-flow-cabinet-atex-fans-cgt-atex-series/#respond Mon, 16 May 2022 06:41:42 +0000 https://sigmagroupsa.com/?post_type=product&p=4444

CGT-ATEX

Range of adjustable pitch aerofoil blade, axial flow cabinet fans. Fan casing manufactured from heavy gauge galvanised sheet steel internally lined with 25 mm thickness fireproof fibreglass acoustic insulation (M0).
All models incorporate separate high grade diecast aluminium blades locked within a pressed sheet steel hub.

Motors
Available, depending upon the model:
– with three phase motors in 4 or 6 poles.
– with three phase two speed motors 4/8, 4/6 or 6/12 poles.
All the motors are IP55, Class F insulation.
Electrical supplies:
Three phase 220-240/380-415-50/60* Hz up to 3 kW.
(*Check Easyvent for 60Hz available models)
Three phase 380-415V-50Hz, for higher power motors and two speed motors.
(See characteristics chart).

Additional information
Standard air direction: form (A) configuration
(Motor over Impeller).

On request
Air direction: form (B) configuration (Impeller over Motor).
Single phase motors 230-50Hz up to 2,2kW.
Motors with PTC.

ATEX

ATEX versions available for three phase models. For ambient working temperatures from -20ºC to +40ºC.
– ATEX Flameproof-Gas
II 2G Ex d IIB T4
II 2G Ex d IIB+H2 T4 (with Ex d IIC T4 motor)
-ATEX Increased safety- Gas
II 2G Ex e II T3
– ATEX- Dust
Suspended flammable particles and nonconductive dust:
II 3D Ex tc IIIB T125ºC
Conductive dust:
II 3D Ex tc IIIC T125ºC (with IP65 motor)
To select CGT ATEX refer to performance curves for CHGT or Easyvent.
Note electrical data may vary for ATEX motors.

Attributes

  • CGT-ATEXbdp506

    Corrosion resistance
    Casings manufactured from galvanised sheet steel.
    Design enables the casing side panels to be removed and the motorimpeller assembly accessed.

  • CGT-ATEXbdp487

    Easy to install
    Robust base supports facilitate the installation.
    (Models from 900 to 1250).

  • CGT-ATEXbdp481

    Impeller dynamically balanced
    Impeller dynamically balanced, according to ISO 1940 standard, providing vibration free operation.

  • CGT-ATEXbdp531

    Wide blade design: higher pressure
    Wide blade design to ensure the highest efficient airflow performances.
    Configuration 1: models from 400 to 800-6.
    Configuration 2: models from 800-9 to 1250.

]]> https://sigmagroupsa.com/product/axial-flow-cabinet-atex-fans-cgt-atex-series/feed/ 0