Roof Mounted ATEX Fans – SIGMA https://sigmagroupsa.com Mon, 16 May 2022 06:43:21 +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 Roof Mounted ATEX Fans – SIGMA https://sigmagroupsa.com 32 32 Roof Mounted Axial Flow Fans HCTB / HCTT Series https://sigmagroupsa.com/product/roof-mounted-axial-flow-fans-hctb-hctt-series-3/ https://sigmagroupsa.com/product/roof-mounted-axial-flow-fans-hctb-hctt-series-3/#respond Mon, 16 May 2022 06:42:05 +0000 https://sigmagroupsa.com/?post_type=product&p=4455

HCTB/HCTT

Range of axial roof fans with horizontal air discharge configuration available in 2 version:
-“B” models for air extract.
-“A” models for air supply.
Base manufactured from galvanized sheet steel.
Cowl manufactured from spun aluminium. The impellers for models 315 to 400 are manufactured from one piece injection moulded plastic, reinforced with chemical anchored fibreglass for additional strength. Models 450 to 1000 incorporate separate plastic blades locked within a die cast aluminium hub.
Available, depending upon the model, with single or three phase motors in 4, 6, 8 or 4/8 poles.

Motors
All motors are IP65 (1) Class F (2) with thermal protection (3) and ball bearings greased for life.
Electrical supply:
-Single phase 230V-50Hz (Capacitor located inside the wiring terminal box).
-Three phase 400V-50Hz.
(See characteristics chart).
All single phase models are speed controllable by voltage except HCTB/4- 560, HCTB/4-630.
All three phase models are speed controllable by autotransformer, except models HCTT/4- 560, HCTT/4-630, Ø 710 to 1000.
Three phase models, 1 speed motor, are speed controllable by inverter.
(1) 800 to 1000 models are IP55.
(2) Air stream temperature limits -40ºC to +70ºC (except models 800 to 1000 suitable for usage in environments from -20ºC to 40ºC).
(3) 800 to 1000 models are not equipped with thermal protection.

Aplications
Industrial process ventilation, agricultural facilities, swimming pools and data centers.

ATEX

HCTT ATEX
ATEX versions available for 3 phase models. For ambient working temperatures from -20ºC to +40ºC.
Motors IP55, class F.
– ATEX Flameproof – Gas
Only available for 800 to 1000 models
II 2G Ex d IIB T4<br<II 2G Ex d IIB+H2 T4 (with motor Ex d IIC T4)
– ATEX Increased safety – Gas
II 2G Ex e II T3
– ATEX – Dust
Only available for 800 to 1000 models
Suspended flammable particles and non-conductive dust:
II 3D Ex tc IIIB T125ºC
Conductive dust:
II 3D Ex tc IIIC T125ºC (with IP65 motor)
To select HXTT ATEX refer to performance data or EASYVENT.
Note electrical data may vary for ATEX motors.</br<

Attributes

  • HCTB/HCTTbdp506

    Easy to install
    Supports to facilitate installation in the roof.

  • HCTB/HCTTbdp487

    High quality steel sleeve
    Ensuring the long life of the fan.

  • HCTB/HCTTbdp481

    Impeller dynamically balanced
    Impellers are dynamically balanced, according to ISO 1940 standard, giving vibration free operation.

  • HCTB/HCTTbdp531

    Bird-proof guard.

]]> https://sigmagroupsa.com/product/roof-mounted-axial-flow-fans-hctb-hctt-series-3/feed/ 0 Flame Proof Roof Mounted Fans TCDH EXD Series https://sigmagroupsa.com/product/flame-proof-roof-mounted-fans-tcdh-exd-series-2/ https://sigmagroupsa.com/product/flame-proof-roof-mounted-fans-tcdh-exd-series-2/#respond Mon, 16 May 2022 06:42:05 +0000 https://sigmagroupsa.com/?post_type=product&p=4456

TCDH EXD

Range of flame proof roof mounted fans, classified Ex II2G Exd IIB(H2) and specially designed for the ventilation / extraction of potentially hazardous and explosive gases.
Working temperature up to +40ºC.
Direct drive backward curved centrifugal impeller, manufactured from galvanised sheet steel and aluminium hub.
Base manufactured from galvanised sheet steel and brass inlet ring.
Cowl manufactured in galvanised sheet steel.
Bird proof guard in accordance with EN ISO 13857 Standard.

Motors
– Flame proof motor II2G EExd IICT4.
Available in 4, 6 or 8 poles, depending on versions.
Three phase motor 230/400V-50Hz, IP55, class F.
Motor fitted with PTC thermal protection to connect to a frequency inverter.

ATEX

Flame proof versions in accordance to ATEX Directive:
– Flame proof II2G EExd IICT4.

Attributes

  • TCDH EXDbdp506

    Easy to install
    Supports easing the installation on the roof.

  • TCDH EXDbdp487

    Bird-proof guard.

  • TCDH EXDbdp481

    Backward curved centrifugal impellers
    To prevent accumulation of dirt.

]]> https://sigmagroupsa.com/product/flame-proof-roof-mounted-fans-tcdh-exd-series-2/feed/ 0 Roof Mounted Fans TH ATEX Series https://sigmagroupsa.com/product/roof-mounted-fans-th-atex-series-2/ https://sigmagroupsa.com/product/roof-mounted-fans-th-atex-series-2/#respond Mon, 16 May 2022 06:42:05 +0000 https://sigmagroupsa.com/?post_type=product&p=4457

TH-ATEX

Range of roof mounted mixed flow fans, specially designed for the extraction of potentially hazardous and explosive gases, manufactured from sheet steel protected with black polyester paint coating (except TH-800/200 manufactured from plastic to prevent retention of static electricity, base and cap manufactured from sheet steel protected with black polyester paint coating). Bird-proof guard. Detachable fan unit without demounting duct connections.

ATEX

TH ATEX Motors
– Single Phase 230V 50 Hz
– IP44 Class B
– ATEX Increased safety-Gas
For models 250 and 315.
IIG Exe IIC T3 Gb
EC: LOM 11 ATEX 2021 X Supplement 1
For model 800
IIG Exe IIC T3 Gb
EC: LOM 08 ATEX 2052 X Supplement 2
See data for selection or refer to Easyvent

Attributes

  • TH-ATEXbdp506

    IP55, external terminal box
    External terminal box, easy access, IP55, fireproof plastic V0.

  • TH-ATEXbdp487

    ATEX capacitor

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