The Polish-Austrian company P.U.H. FRAPOL
30-832 Cracow, Mierzeja Wislana Str. 8, Tel.: +48 (12) 653 27 66, Fax: +48 (12) 653 27 89

PRODUCTS - Round Ducts and Fittings

Round ducts and fittings are designed for use in low and medium pressure ventilation and air-conditioning installations. They are made of galvanized steel sheets, based on standard PN-B-03434 and the standards cited therein. On request, there is a possibility of production according to different standards, and from other materials, e.g. aluminum plate or stainless steel plate. Ducts and fittings are produced with nominal diameters ranging from 80 to 1250 mm. SPIRO ducts are produced with nominal lengths of 3 and 6 m. Maximum length of ducts folded along amounts to 2 m for diameters exceeding 125 mm, and 1 m for diameters up to 125 mm inclusive.

Scope of production:
  • SPIRO ducts
  • Ducts folded along
  • Pressed bends
  • Segment bends
  • T-pieces 90o
  • T-pieces 45o
  • Reducing T-pieces 90o
  • Cross pieces 90o
  • Centric reducers
  • Eccentric reducers


  • T-pieces with connection for the grille
  • Y-pieces
  • T-pieces 45o
  • Saddle pieces
  • Nipples, Muffs
  • Take-offs, End caps
  • Outlets with protective grid
  • Outlet bends with protective grid
  • Duct cowl
  • Flanges
  • Dampers for regulation


Frapol Krakow has successfully finished the assembly and start-up of the new ventilation and air-conditioning installation in the Andel’s Hotel, performed in co-operation with the Austrian company HTG Wien.

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Frapol’s Management Board – in spite of recession in the construction market, according to the rule “He that does not develop, moves back” – decided to build a new production building with an administrative section, the total area to be developed being 4,170 m2.

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