E-PSA-CIR: Circular pressure control damper made of galvanised steel. The blade is attached to a weight. The distance between blade and weight can be regulated to adjust pressure.

E-PSA-CIR-AIS: Circular pressure control damper made of galvanised steel. The blade is attached to a weight. The distance between blade and weight can be regulated to adjust pressure. It's tunnel is insulated to prevent condesation.

E-PSA-CIR-SP: Circular pressure control damper made of galvanised steel. The blade is attached to a weight. The distance between blade and weight can be regulated to adjust pressure. A support allows to ensure the horizontal position.

E-PSA-CIR-SP-AIS: Circular pressure control damper made of galvanised steel. The blade is attached to a weight. The distance between blade and weight can be regulated to adjust pressure. A support allows to ensure the horizontal position. It's tunnel is insulated to prevent condesation.