PQ flanges are made from galvanized steel sheet and designed
for butt joining of rectangular ducts. They are fitted at the
bare ends of square ducts and fittings to form flange frames.
Three flange sizes are available for various duct sizes and
internal pressure levels.
The sealing provides highly airtight butt joints between
the ventilation ducts. The sealing temperature range
is from -30˚C to +140˚C. The sealing compound is
resistant to ageing, adheres well to the surface, has high
mechanical strength, and provides anti-corrosion protection.
PQ-...-SIL flange with sealant helps to achieve airtightness
class C in rectangular ducts.
