COLASIT AG
Plastic construction
P.O. Box 85
Faulenbachweg 63
CH - 3700 Spiez
 
Phone +41 (0)33 655 61 61
Fax +41 (0)33 654 81 61
Mail info@colasit.ch

Ventilation rectangular



 
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 date, COLASIT 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 strengthening
External strengthening using welded-on reinforcement profiles or internal stiffening using tubing.



 

The following documentation is available in PDF format: