Reducing expansion joint

Design: Concentric or eccentric reducing rubber bellows with full faced rubber flanges, designed to compensate all-directional movements, have a cycle life in the tens of millions, constructed with a highgrade leak-proof tube, multiple layers of high-strength cord, a seamless cover, and single- or multi-part backing flanges. At high pressure, large diameters and extreme reductions with self-sealing rubber bulge and single-part swivel backing flange at the large diameter. In compliance with PED 2014/68/EU, FSA Technical Handbook and ASTM F1123 - 87.
Diameters: 80 to 1,600 mm, custom diameters possible
Length: Standard LE = 150 to 2,150 mm (> page 128–129), Custom length on request
Pressure: Up to 10 bar depending on diameter and length
Movement: For small axial and lateral movements

Design: Single- or multi-part round backing flanges with clearance holes, For high pressure, large diameters and extreme reductions, single-part round swivel backing flange with clearance holes and a groove to accept a rubber bulge at the large diameter
Flange norms: DIN, EN, ANSI, AWWA, BS, JIS, special measurements
Materials: Carbon steel, stainless steel or aluminium
Coating: Primed, hot-dip galvanised, special paint

Tie rods: Tie rods mounted outside in spherical bearings and ball disks to take up the thrust forces from pressure

Tie rods mounted outside and inside in spherical bearings and ball disks to take up the thrust forces from pressure and vacuum

Protective covers: Ground protective shield, Protective shield or cover, Fire protective cover
Flow liners: Cylindrical flow liner, Conical flow liner, Telescoping flow liner