Dimensions
The available dimensions can be found in the product descriptions in our price list. Please refer to the "Products and Prices" link.
The diameters 80 up to 180 mm in stainless steel are not available.
Elbow Radii
Elbows come in different radii. The larger the radius of the bend, the lower the friction and pressure drops in the air duct.
The standard radii (R) correspond to the pipe diameter (D) × 1 (R = 1D). Radii larger than 1D (e.g. R = 1.5D, R = 2D) are used to reduce the energy consumption of fans or are intended for special applications such as dust extraction. Bends with such larger radii make it possible to maintain the necessary air velocity so that the particles can be transported with the air flow.
Proper Fastening
Make sure that the ducts are secured properly on both sides of the fittings. Stress factors, such as weight (illustrated by the yellow arrow), could open the seams (red arrows) and lead to instability and leakages.
1. 90° Elbow plus about 3°
2. Spacial 3° degrees ebow
3. Elbow with a non-standard angle
4. Slope
5. Drain fitting ST-K
6. Oils (process industry), condensation, liquid detergents (Kitchens), etc.