Reducer Centric Connected To Spiral Duct From Both Sides

RECT – Thermal Double Wall Reducer

RECA – Acoustical Double Wall Reducer

Reducer Eccentric Connected To Spiral Duct From Both Sides

REFT – Thermal Double Wall Reducer

REFA – Acoustical Double Wall Reducer

Inner Shell Dia mm d1

Outer Shell Diameter mm d10 = d1+2l

Insulation 25mm Or 50mm

Insulation Density 24 Kg/m3 As Standard

L – 100mm Minimum

Z = (d1 – d2) /2