Flexible couplers are used to eliminate vibrations transmited from the fan of other ventilation devices to the ventilation system, as well as to compensate to some extant the ventilation ducts resulting from temperaturę elongation. It is used in ventilation devices in temperatures ranging from -40oC to +80oC.
PDI/PDT roof base
A flat-roof base is made of a galvanised sheet. Two types of roof bases are available:
- PDI — insulated with is a 10mm insulation (polyurethane foam) inside preventing condensation and
- PDT — silencing, with 50mm insulation (mineral wool).
The collar around the base allows the base to be firmly attached to the roof.
A flat-roof base is made of a galvanised sheet. Two types of roof bases are available:
- PDI — insulated with is a 10mm insulation (polyurethane foam) inside preventing condensation and
- PDT — silencing, with 50mm insulation (mineral wool).
The collar around the base allows the base to be firmly attached to the roof.