RUBBER EXPANSION JOINT TYPE A-1 Please comply with the general technical instructions regarding reaction force, moving force, fixed point load, installation instructions etc. Subject to technical alterations and deviations resulting from the manufacturing process. UNIVERSAL EXPANSION JOINT DN 20 – DN 1000 Structure TYPE A-1 / Rubber bellows PN 16 Universal expansion joint, consisting of a rubber bellows with rotable flanges Highly elastic molded bellows in various rubber grades Synthetic fibre reinforcement Wire-reinforced self-sealing rubber rim Electrical impedance 103 to 106 Ohm (DIN IEC 93, VDE 0303-30) Rubber grade* Colour code Hot water, acids, lyes hydrocarbon containing liquids Drinking water Possible uses *Check or inquire about the resistance of the rubber grade to temperature and medium APPLICATIONS for reducing thermal and mechanical tension in pipes and their system components, e.g. pumps compressors engines for absorbing vibration and noise for compensating axial, lateral and angular movement for compensating simultaneous movement in cooling water pipes to compensate for installation inaccuracies as installation and dismantling aid Technical design Max. perm. operating pressure Bursting pressure Vacuum operation DN 20 – 50 without vacuum supporting ring, DN 65 – 1000 with vacuum supporting ring Max. operating pressure to be set 30 % lower for shock loads. *Please consider a decrease of pressure due to temperature (see technical annex). FLANGES / VERSIONS ANSI, BS etc. Connection dimensions see technical annex page 213 – 215 Corrosion protection CE (PED 2014/68/EU) DNV GL® / DNV ® Lloyd’s Register of Shipping Drinking water TÜV Süd (KTA) Bureau Veritas Others see technical annex Rotable flanges with stabilizing collar Flange drilling for through bolts Special machined groove for rubber rim Vacuum supporting ring Inte

DIMENSIONS STANDARD PROGRAM DN ØD ØC ØE Ø W** PN b Raised face Raised face ConvoluFlange Flange Flange outer Ø inner Ø tion Ø connection outer Ø thickness mm mm mm EN 1902 mm mm 51 51 72 72 81 81 95 95 115 115 127 151 178 206 230 260 260 313 313 363 423 474 532 584 684 800 900 1008 1108 *DN 25 to DN 300 also available in BL 130 mm as Type R-1. **unpressurized. From DN 200 also available with pressure rate 16 bar. Please contact us for further flange dimensions. Type A-1 Universal expansion joint, without restraint * arger ∆ D ang possible for compressed L installation length. ** ffective bellows...