S&P HDB / HDT represent a range of plate mounted axial flameproof fans. Mounting plate manufactured from galvanised sheet steel fitted with an internal aluminum ring and motor support manufactured from heavy gauge aluminum sheet. The whole assembly is protected by aluminum paint finish B-0920. Impellers manufactured from one piece die-cast aluminum with aerofoil profile fixed blades and finished in a high temperature paint coating (red color).

Standard air direction: form (A) configuration (Motor over Impeller).On request air direction: form (B) configuration (Impeller over Motor) only for 450 and 560 models.

Available, depending upon the model, with single or three phase motors in 4, 6 or 8 poles. For the single phase motors, the capacitor is provided not fitted on the fan. It must be installed outside of the ATEX area or within an electrical main board complying with ATEX Directive. All motors are with protection rating IP55, class F insulation. All motors incorporate ball bearings greased for life. Electrical supply is single phase 230V-50Hz and three phase 230/400V-50Hz. 

ATEX versions HDT:

• On request, explosion proof versions in accordance with ATEX Directive.
• For ambient working temperatures from -20ºC to +40ºC.

ATEX Flameproof-Gas:
In standard ATEX version flameproof motors are without thermal protection. If used with frequency inverter, flameproof motors with a PTC-type thermal protection must be specified at order.

ATEX Dust:
In standard ATEX version, ATEX motors for dust are without thermal protection. If used with frequency inverter, ATEX motors for dust with a PTC-type thermal protection must be specified at order.

To select the HDT ATEX version, refer to the performance charts or Easyvent. Please note that the electrical specifications may vary for ATEX motors. If alternative ATEX motors are available, please contact us for further information.