COLASIT AG Plastic construction CH-3700 Spiez Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61 Edition 2009 / Subject to alteration Copyright by COLASIT AG Spiez Standard ventilation components rectangular Ventilation ducting + fittings in plastic Standards The maximum amount of bending of the longest side for unstrengthened ducts is defined in DIN 4740 Part 5 for PVC and in DIN 4741 Part 5 for PPs. Material All ducts and fittings can be supplied in the following materials: PPs, flame-resistant according to DIN 4102 B1 PE, specially stabilised for outdoor use PVC, flame-resistant according to DIN 4102 B1 PP Calculation On the basis of the following data, COLASIT AG calculates and defines the optimum type of strengthening as required: - max. edge length - max. over-pressure and under-pressure in the ducting - Temperature of medium passing through - Permitted amount of bending Types of External strengthening using welded-on reinforcement profiles strengthening or internal stiffening using tubing. COLASIT AG usually uses specially developed internal stiffening elements. Wall thickness for internally-strengthened ducts and maximum bending of 2% of edge length according to DIN 4741 T5 Dimensions PPs, PP max. loading +/- 1000 Pa PE max. loading +/- 1000 Pa PVC max. loading +/- 1500 Pa 110 – 500 mm 4 mm 4 mm 4 mm 501 – 1000 mm 6 mm 6 mm 6 mm 1001 – 2000 mm 8 mm 8 mm 8 mm

COLASIT AG Plastic construction CH-3700 Spiez Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61 Edition 2009 / Subject to alteration Copyright by COLASIT AG Spiez Standard ventilation components rectangular 90° / 45° bend Dimensional Drawing No. 1.042 / 43 Material PVC / PP / PPs / PE Other dimensions are also possible Dimension PP / PPs PVC Coupling A / B S S H 110-250 4 3 50 251-500 4 4 80 501-1000 6 5 80

COLASIT AG Plastic construction CH-3700 Spiez Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61 Edition 2009 / Subject to alteration Copyright by COLASIT AG Spiez Standard ventilation components rectangular Rectangular taper-piece Dimensional Drawing No. 1.044 Material PVC / PP / PPs / PE A or B L S < 500 * 4 500 - 750 * 5 > 750 * 6 Standard sizes: as for ducting. * Dimension L depends on the size of the two connecting cross-sections.

COLASIT AG Plastic construction CH-3700 Spiez Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61 Edition 2009 / Subject to alteration Copyright by COLASIT AG Spiez Standard ventilation components rectangular Rectangular / round connecting-piece Dimensional Drawing No. 1.045 Material PVC / PP / PPs / PE Standard sizes: as for ducting. * Dimension L depends on the size of the two connecting cross-sections. A or B L S < 500 * 4 500 - 1000 * 6 > 1000 * 8

COLASIT AG Plastic construction CH-3700 Spiez Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61 Edition 2009 / Subject to alteration Copyright by COLASIT AG Spiez Standard ventilation components rectangular Rectangular coupler Dimension Drawing Nr. 1.048 Material PVC / PP / PPs / PE Standard sizes: as for ducting. A or B L PVC PP / PPs / PE S S 110 – 250 50 3 4 251 – 500 80 4 4 501 - 1000 80 5 5