© Siemens AG 2015 FLENDER Standard Couplings Coupling Preselection and Options Selection of the coupling series Typical coupling solutions for different example applications The specified application factors are recommendations; regula- tions, rules and practical experience take priority as assessment criteria. No application factor need be taken into account with FLUDEX couplings. In the case of highly flexible couplings of the ELPEX, ELPEX-S and ELPEX-B series, deviating application factors are stated in the product descriptions.
3 Preferred solution Possible, less common – Uncommon 3/3 Siemens MD 10.1 · 2015 Example applications Application factor FB FLUDEX ZAPEX ARPEX N-EUPEX RUPEX N-BIPEX ELPEX-B ELPEX-S ELPEX Electric motor without gear unit Centrifugal pumps 1.0 ... 1.5 – – Piston pumps 1.5 ... 2.0 – Vacuum pumps 1.5 ... 1.75 Fans with TN less than 75 Nm 1.5 ... 1.75 Fans with TN from 75 to 750 Nm 1.75 ... 2.0 Fans with TN larger than 750 Nm 1.75 ... 2.0 – Blowers 1.5 ... 2.0 Frequency converters / generators 1.25 ... 1.75 – Reciprocating compressors 1.75 ... 2.5 – Screw-type compressors 1.5 ... 1.75 Internal-combustion engine without gear unit Generators 1.75 ... 2.5 – – Pumps 1.5 ... 1.75 – Fans 1.75 ...
2.5 – – Hydraulic pumps, excavators, construction machines 1.5 ... 1.75 – Compressors / screw-type compressors 1.5 ... 1.75 Agricultural machinery 1.75 ... 2.5 Other Turbine gear units 1.5 ... 1.75 – – – – – – Hydraulic motor - gear unit 1.25 ... 1.5 – Electric motor with gear unit Chemical industry Extruders 1.5 ... 2.0 – – Pumps - centrifugal pumps 1.0 ... 1.5 – – Pumps - piston pumps 1.75 ... 2.5 Pumps - plunger pumps 1.5 ... 1.75 Reciprocating compressors 1.75 ... 2.5 Calenders 1.5 ... 1.75 – Kneaders 1.75 ... 2.5 Cooling drums 1.25 ... 1.5 – – – Mixers 1.25 ... 1.5 – – – Stirrers 1.25 ... 1.5 – – Toasters 1.25 ... 1.5 – – – Drying drums 1.25 ... 1.5 – – Centrifuges 1.25 ...
1.5 – – Crushers 1.5 ... 2.5 – Power generation and conversion Compressed air, reciprocating compressors 1.75 ... 2.5 – Compressed air, screw-type compressors 1.25 ... 1.5 – – Air - Blowers 1.5 ... 1.75 Air - Cooling tower fans 1.5 ... 1.75 – Air - Turbine blowers 1.5 ... 1.75 – – – – – – Generators, converters 1.25 ... 1.5 – – – – Welding generators 1.25 ... 1.5 – – – – – Metal production, iron and steel works Plate tilters 1.5 ... 2.0 – – – – Ingot pushers 1.75 ... 2.5 – – – – Slabbing mill 1.75 ... 2.5 – – – – Coiling machines 1.5 ... 2.0 – – – – Roller straightening machines 1.5 ... 2.0 – – – Roller tables 1.75 ... 2.5 – – – Shears 1.75 ... 2.0 – – – – Rollers 1.75 ... 2.0 – – –