Roladuct Oval Ducts
Spiral Flat-Oval Compared with Rectangular Duct
The Spiral Flat-Oval has considerably less flat surface than rectangular duct. If the springy structure of flat-oval is adequately dampered, it has less surface susceptible to vibration. Thus, properly designed flat-oval duct can be superior in performance to rectangular duct.
The characteristics of flat-oval duct parallel those of circularshaped duct closely enough that slip-joint couplings can be used. Slip-joint couplings provide easier sealing against air leaks at the joints, a significant improvement over other types of duct connections.
There is an unfortunate tendency to make a surface application of sealer over a joint and assume that this is a permanently satisfactory solution to the sealing problem. This is not the case, as surface-applied sealers are not a permanent seal. Roladuct research into materials and techniques for joint sealing has proved that the sealer must be protected by metal, such as within a slip-joint, in order to be considered a permanent seal.
The Spiral Flat-Oval coupling and joint permits the use of the same experience-proven materials and technique for sealing that have been so successful in circular duct joints.
Under certain size and pressure conditions, both flat-oval and rectangular duct must be braced and reinforced against deflection.
Flat-Oval Duct Design
The design of a duct system utilising flat-oval duct follows the same procedures used with rectangular duct.
To contact Roladuct about Roladuct Oval Ducts use Get a quote.
Spiral Flat-Oval Compared with Rectangular Duct
The Spiral Flat-Oval has considerably less flat surface than rectangular duct. If the springy structure of flat-oval is adequately dampered, it has less surface susceptible to vibration. Thus, properly designed flat-oval duct can be superior in performance to rectangular duct.
The characteristics of flat-oval duct parallel those of circularshaped duct closely enough that slip-joint couplings can be used. Slip-joint couplings provide easier sealing against air leaks at the joints, a significant improvement over other types of duct connections.
There is an unfortunate tendency to make a surface application of sealer over a joint and assume that this is a permanently satisfactory solution to the sealing problem. This is not the case, as surface-applied sealers are not a permanent seal. Roladuct research into materials and techniques for joint sealing has proved that the sealer must be protected by metal, such as within a slip-joint, in order to be considered a permanent seal.
The Spiral Flat-Oval coupling and joint permits the use of the same experience-proven materials and technique for sealing that have been so successful in circular duct joints.
Under certain size and pressure conditions, both flat-oval and rectangular duct must be braced and reinforced against deflection.
Flat-Oval Duct Design
The design of a duct system utilising flat-oval duct follows the same procedures used with rectangular duct.
To contact Roladuct about Roladuct Oval Ducts use Get a quote.
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