Circular regulating damper

The GTC circular control damper is used to regulate and control airflows inside circular ducts.

GTC series circular control damper – Model GTC 30/40

  • GTC 30: frame length 300mm, sizes range from 100mm to 315mm;
  • GTC 40: frame length 400mm, sizes range from 350mm to 630mm.

The GTC range can be supplied with manual or electric systems for secure or classified areas.


  • construction in galvanised steel or AISI 316 stainless steel;
  • version with/without external seal or with flange;
  • strong version in galvanised steel or AISI 316 stainless steel.

For technical information on the other models, see Configurations.


  • ATEX IIGD -40°C < T < +50°C;
  • Declaration of Conformity EAC and EAC-ex.
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Condizioni generali di vendita

Condizioni generali di acquisto

General Conditions of Purchase