Round ducts

appealing looking product, made by spirally formed strip of sheet metal, famous for easy production, easy installation, standardized sizes and fittings and good-looking enought to be installed exposed and undyed...
  • Spiral pipes

     The spiral formed pipes produced by us have a patented seam that stabilizes the pipes and  ensures that tolerances are maintained even  during processing and transport. Larger sizes are factory-made with additional ribbing.  

     • Quick and easy installation

     • Factory mounted gasket on request

     • Can be installed in all seasons

     • Heat resistant

     • They have a positive pressure up to 3000 Pa

    Dimensions are according to Eurovent.

    Tested for Class D airtightness according to EN15727.

    Spiral pipes
  • Pipe connections

    Internal and external connections for spiral pipes

    Only used between two pipes, not between pipes and other fittings

    Pipe connections
  • Elbows

    From ø80 to ø125 - welded elbows made of galvanized sheet metal with Rm = 1 D.

    From ø160 to ø1250 - segment elbows made of galvanized sheet metal with Rm = 1 D

    Deviation angle from 15 to 90 degrees.

    They are available with a variable bending radius, which you must specify when ordering. The standard radius is 1D.

    Like all other fittings, they are available with or without a rubber seal

    Elbows
  • T- and Y-shaped branches

    T-shaped and Y-shaped branches with branching agles between 45deg and 90deg

    Like all other fittings, they are available with or without a rubber seal

    T- and Y-shaped branches
  • Cross-type and Fork-type branches

    Four-way branches with X-shape or fork type.

    Like all other fittings, they are available with or without a rubber seal.

    Cross-type and Fork-type branches
  • Reducers

    There are two types - concentric and tangential reducers.

    Like all other fittings, they are available with or without a rubber seal

    Reducers
  • Spigots

    Spigots are a budget solution for branching from a main air duct.

    They somewhat replace the use of a T-piece or X-piece, but it is not recommended to use them frequently.

    They are more suitable for accidental branches, which were necessary to be introduces after the completion of a ventilation system.

    They are produced with a branch angle of 45 and 90 degrees.

    Like all other fittings, they are available with and without a rubber seal

    Spigots
  • Caps

    End caps for sealing off a spiral air duct.

    They are produced in two variants - for internal and external application.

    Like all other fittings, they are available with and without a rubber seal

    Caps
  • Flexible connections

    Flexible connections for connecting spiral air ducts to ventilation equipment, which dampens the transmission of vibrations from the equipment to the air supply network.

    Available in standard version and in high-temperature resistant version.

    Flexible connections
  • Top Hats

    Topping elements for vertical spiral pipework.

    A number of types are available for different applications.


    Top Hats
  • Accessories

    Different types of fasteners and suspension elements that will help you suspend your spiral air ducts.

    Accessories

Technical Data

for the technically curious bunch of you...
  • CODE Product
    Ds Spiral tube
    NPL Internal joint
    МF External joint
    BFL 15-90 Elbows 15-90 degrees
    RCLL Concentric reducer
    RLL Tangential reducer
    TCPL T-piece 90deg
    TVL T-piece 45deg
    YVL Y-piece
    XCPL X-cross piece 90deg
    XVL X-fork piece 45deg
    PSL Branch
    ESL Internal cap
    EPF External cap
  • Diameter, mm Weight, kg Additional ribbing
    ø80 1,0 no
    ø100 1,3 no
    ø125 1,6 no
    ø160 2,1 no
    ø180 2,3 no
    ø200 2,6 no
    ø224 2,9 no
    ø250 3,2 no
    ø280 3,6 no
    ø300 3,8 no
    ø315 4,1 no
    ø355 6,1 no
    ø400 6,8 no
    ø450 7,7 yes
    ø500 8,5 yes
    ø560 yes
    ø630 yes
    ø710 yes
    ø800 yes
    ø900 yes
    ø1000 yes
    ø1120 yes
    ø1250 yes

Projects

where our products have been put in use...
  • Telelink Business Center

    Sofia
  • Business Center Park Lane

    Sofia
  • Business Center NV Tower

    Sofia
  • Camden Lock Village

    London

Resources

here you will find interesting content for the products you are looking at ...
  • DUCTS Catalog

    DUCTS Catalog
    7.16 mb