Pre-insulated Circular Air Ducts
Fabrication Manual
Page 1: ...Pre insulated Circular Air Ducts Fabrication Manual ...
Page 2: ... p 8 p 8 p 9 ALP ROUND System Technical Characteristics Straight ducts Elbows Making a 45 Elbows Reducers Making One step Transition Joint systems Joint flange Joint neck Duct Support Specification of Use Straight ducts Cut to length 1 p 5 p 6 p 2 p 2 ...
Page 3: ...chnical Characteristics Duct Foam wall thickness 25 mm Insulation foam density 60 kg m3 External facing aluminium foil 120 micron embossed Internal facing aluminium foil 120 micron embossed Duct weight Diam 200 mm 1 60 Kg m Diam 300 mm 2 30 Kg m Diam 400 mm 3 00 Kg m Diam 500 mm 3 60 Kg m Diam 600 mm 4 30 Kg m Specification of Use Operative Pressure max 3 500 Pascal Sealing Class Class B Air Veloc...
Page 4: ...ly ONLY and press it properly by using the soft spatula Back fold the aluminium tape as shown in the picture Repeat the same operations as above also for the other half shell Then the two half shells are ready for glueing Apply the glue on both sides of the half shells Wait the necessary time before assemblying the duct You can use ALPTAK glue or HYDRO GLUE Check the glue TDS to know how long you ...
Page 5: ... cut it to the right length Take a mesure from one end of the duct and mark the point Take a flexible strip made of aluminium or carton paper and wrap the duct around Position it at the right length where you have marked before Following the rigid strip mark the duct around using the marker in nylon Cut the duct following the line mark Use the Round Cutter for an easy and fast procedure 4 ...
Page 6: ...RO GLUE Check the glue TDS to know how long you have to wait NOTE Use the template to avoid spraying the glue inside the duct Assemble the duct by joining the two half shells Then apply the aluminium tape internally and externally by following the line marks Making a 45 Elbow The Elbows have a reference mark in order to make easy and fast to cut them at 45 In order to make a 45 Elbow it is necessa...
Page 7: ...praying the glue inside the duct Assemble the duct by joining the two half shells Then apply the aluminium tape internally and externally by following the line marks Making 1 step transition A Reducer makes 2 step transition in the same piece from 600 mm to 500 mm and then to 400 mm from 400 mm to 300 mm and then to 200 mm However the Reducers have a reference mark in the middle to make easy and f...
Page 8: ...LP ROUND pieces The Joint flange is available only for the following diameters 200 mm 300 mm 400 mm Invisible Joint neck LONG The LONG Joint neck is made in aluminium Thickness is 8 10 mm Length is 300 mm This Joint neck is used to connect the Straight ducts Invisible Joint neck SHORT The SHORT Joint neck is made in aluminium Thickness is 8 10 mm Length is 90 mm This Joint neck is used to connect ...
Page 9: ...e on the duct without waiting time Install the adehsive foam gasket Joint the ducts and fix them by using bolts nuts Install the double sided tape Close the joint neck Lift the wings These wings mark the middle of the neck Apply PROFIX glue on the Joint neck and insert the neck inside the duct Apply PROFIX glue on the other half of the Joint neck and join the two ducts Apply the aluminium tape jus...
Page 10: ...Supporting Fabrication Manual 9 600 500 400 300 4 metres Ring Type FR N 2 6 mm 200 Max Gripple Wire Drop Rod Diam mm Spacing Hangers Duct Diameter Example Gripple Wire ...
