Standard ventilation components rectangular0 pages

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