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Ducts and fittings insulated with mineral wool

Photo of product family: Ducts and fittings insulated with mineral wool

Temperature maintenance is one of the most significant factors that influence comfort of occupants in the building, therefore a large amount of energy is wasted to maintain chosen temperature - air conditioning and ventilation equipment. Although heat loss is unavoidable, using adequate thermal insulation of ventilation ducts can reduce energy consumption. In order to calculate thermal insulation thickness, we recommend checking International standard ISO 12241 ‘Thermal insulation for building equipment and industrial installations. Calculation rules’. 

Ducts and fittings (bends, t-pieces, reducers, dampers and couplings) are available with 25, 50 and 100 mm insulation. 

Ducts and fittings insulated with mineral wool - Products range
Miniature picture Product code Name of product Files to download
Photo of product Tolerance for ducts and fittings, instalation, assembly instructions Duct and fittings insulated with mineral wool

Tolerance for ducts and fittings, instalation, assembly instructions

This is ALNOR's range of insulated square ducts and fittings
of the IZOL®system.
The IZOL®system is a registered tradename of pre-insulated
ventilation ducts and fittings for indoor and outdoor systems.
All system components are provided with inner and outer steel
sheet cladding, and a thermal-insulation layer in between.
The nominal diameter range of 100-500 mm always refers to
the inner diameter of ducts and fittings.

Insulation
There are 3 types of insulation available:

  • 25 mm insulation — the nominal insulation system is 25
    mm, and the actual value ranges from 15 to 32 mm; the
    insulating layer is fitted tightly against the inner and outer
    cladding which define the product's size according to the
    SPIRAL®system sizing series.
  • 50 mm insulation — the nominal insulation system is 50 mm,
    and the actual value ranges from 35 to 60 mm; the insulating
    layer is fitted tightly against the inner and outer cladding
    which define the product's size according to the SPIRAL®system
    sizing series.
  • 100 mm insulation — the nominal insulation system is 100 mm,
    and the actual value ranges from 75 to 140 mm; the insulating
    layer is fitted tightly against the inner and outer cladding which
    define the product's size according to the SPIRAL®system sizing series.

 

Tolerance for ducts and fittings, instalation, assembly instructions
Photo of product Pre-insulated round ducts SPRI

Pre-insulated round ducts


The standard duct length is 3000 mm; the sheet thickness for a given diameter
is the same as that for the SPR spiral coiled ducts.

The ducts of diameter 250 mm or greater feature outer ribbing to improve
the robustness and vacuum pressure strength.

Pre-insulated round ducts
Photo of product 90 degree Pre-insulated bends BSLI-90

90 degree Pre-insulated bends


The BSLI pre-insulated bends consist of an inner duct bend
with an EPDM gasket and an outer duct bend without gaskets.

90 degree Pre-insulated bends
Photo of product 60 degree Pre-insulated bends BSLI-60

60 degree Pre-insulated bends


All BSLI pre-insulated bends consist of an inner duct bend
with an EPDM gasket and an outer duct bend without gaskets.

60 degree Pre-insulated bends
Photo of product 45 degree Pre-insulated bends BSLI-45

45 degree Pre-insulated bends


All BSLI pre-insulated bends consist of an inner duct bend
with an EPDM gasket and an outer duct bend without gaskets.

45 degree Pre-insulated bends
Photo of product 30 degree Pre-insulated bends BSLI-30

30 degree Pre-insulated bends


All BSLI pre-insulated bends consist of an inner duct bend
with an EPDM gasket and an outer duct bend without gaskets.

30 degree Pre-insulated bends
Photo of product 15 degree Pre-insulated bends BSLI-15

15 degree Pre-insulated bends


All BSLI pre-insulated bends consist of an inner duct bend
with an EPDM gasket and an outer duct bend without gaskets.

15 degree Pre-insulated bends
Photo of product Pre-insulated reducer RSCLLI

Pre-insulated reducer


All RSCLLI pre-insulated reducers consist of an inner reducer
with an EPDM gasket and an outer reducer without gaskets.

Pre-insulated reducer
Photo of product Pre-insulated tee-pieces TPCLI

Pre-insulated tee-pieces


All TPCLI pre-insulated T-pieces consist of an inner T-piece
with an EPDM gasket and an outer T-piece without gaskets.

Pre-insulated tee-pieces
Photo of product Pre-insulated female couplings MSFI

Pre-insulated female couplings

 Insulated couplings are used for joining ducts and fittings:

  • NSLI - Male couplings are used for joining SRI ducts
  • MSFI - Female couplings are used for joining fittings
Pre-insulated female couplings
Photo of product Pre-insulated male couplings NSLI

Pre-insulated male couplings


The NSLI male connectors are designed for coupling SPRI
ducts together.

Pre-insulated male couplings
Photo of product Pre-insulated female end caps CPFI

Pre-insulated female end caps


The CPFI  female end cap is designed for stopping fittings.

Pre-insulated female end caps
Photo of product Pre-insulated male end caps CSLI

Pre-insulated male end caps

Male end caps are used for closing ducts.

Pre-insulated male end caps
Photo of product Pre-insulated closing dampers DASLI

Pre-insulated closing dampers


The DASLI dampers can be installed in ductwork systems
which do not require full airtightness. The damper blade
position is read from the control handle, which can be locked
in position with screws.

Pre-insulated closing dampers
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