Introduction ® Fludex Fluid Couplings Depending on the series selected, different starting characteristics arise during starting. If special requirements, based on the operating method of the prime mover or driven machine, are made of the coupling or the coupling is to be used in extreme environmental conditions, please give specific details in the enquiry or order. The form “Technical specifications for the selection of type and size” on page 13 can be used for this purpose. Start-up characteristics during the starting process The coupling with fusible safety plugs with identity marking T3 is suitable for the operating conditions set out in the ATEXDirective 2014/34/EU: Equipment group I (below-ground applications) of categoryM2 If used in potentially explosive environments under ground, aluminum couplings must be provided with a robust enclosure to preclude the risk of ignition caused by e.g. friction, impact or friction sparks. The deposit of heavy-metal oxides (rust) on the coupling housingmust be prevented by the enclosure or other Operating conditions for FLUDEX couplings in potentially explosive atmospheres Equipment group II (above-ground applications) Temperature class T3 of categories 2 and 3 for environments where there are potentially explosive gas, vapours, mist and air mixtures and for environments where dust can formpotentially explosive atmospheres. suitablemeans. FLUDEX couplings can be delivered with fitted brake disk or V-belt pulley. Designing the belt drive or the brake disk to conform with the guidelines is the responsibility of the subassembly supplier. It should be noted that there is a risk from, amongst other things, electrostatic charges and hot surfaces. Under BGR 132 (regulations of German Institute for Occupational Safety) the use of V-belts in conjunction with IIC gases is not permitted. Axial retention Weights specified in the dimension order tables apply tomaximumbore diameters without oil filling. Axial retention is provided by a set screw or end washer with a retaining screw for shaft ends to DIN 748/1 long with a centering thread to DIN 332/2. Selection of FLUDEX coupling In accordance with the requirements catalogue various series, sizes and types of FLUDEX coupling are available. The FLUDEX coupling series is characterized by various flow chamber configurations, fitted delay chambers or fittings in the flow chamber. The types are determined by the design of the add-on coupling. This results in different starting factors and characteristics which can be used for the most varied applications. The size is specified by stating the flow outside diameter. When selecting, the series required for the application, taking into account the starting factor and the characteristic, must be selected. Bore and keyway width tolerances are specified in: Selection of FLUDEX series FLUDEX couplings, which are to be used solely as an aid to starting the motor under no special conditions, can be selected according to the assignment tables from page 14 page 18 (for n = 1500min-1) or from (for n = 3000min-1). Configuration https://www.jbj.co.uk/e-publications/Flender-mechanical-power-transmission-couplings-available-from-jbj-Techniques-Limited/11/index.html Series Description FA../FG.. Basic coupling without delay chamber FV.. Coupling with delay chamber FN.. Coupling with large delay chamber Motor torque/coupling torque G_MD10_EN_00119a Motor speed Torque 0.0 0.5 1.0 1.5 2.0 2.5 n n 1 0 T T 0% 50% 100% N / TMot / s = 100% - FN.. s = 100% - FV. s = 100% - FA.. / FG.. G_MD10_EN_00120b Tcoupl 0.0 0.5 1.0 1.5 2.0 2.5 Coupling torque over starting time Starting time FA.. / FG.. FV.. FN.. 6 www.jbj.co.uk/couplings.html #DriveLineHarmony
RkJQdWJsaXNoZXIy NzQyNjQ=