Design: Highly elastic, hydrodynamic, double-arch rubber bellows with self-sealing rubber bulges and swivel backing flanges with support collar and tie rods Optionally with vacuum support rings and/or pressure support­ring in the arch trough

 

Nominal diameters: NB 200 to NB 1200, intermediate sizes possible

 

Installation length: Standard LE = 350 to 650 mm ( page 216–218) Other installation lengths on request

 

Pressure: Depending on the nominal diameter up to 10 bar Vacuum not allowed without vacuum support rings, with vacuum support rings up to 0.05 bar absolute Design in accordance with Pressure Equipment Directive PED 97/23/EC

 

Movement: For very large lateral movements Installation gap tolerances possible in the context of axial compression and extension

 

Application: 

 

Cooling water systems, desalination plants, drinking water supply, plant construction, e. g. in pipelines, on pumps, as dismantling joints, on condensers and vessels