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Fluid coupling type TVV

Fluid coupling type DTVV

The fluid coupling type TVV is equivalent to the fluid coupling type TV, enhanced with an enlarged delay chamber. When starting up, there is much less operating fluid in the working circuit. The driven machine starts up even more gently and the torque limitation behavior is stronger during start-up. The coupling also protects the drive against overload and dampens torsional vibration. It protects your system and increases productivity.

The fluid coupling type TVV is predominantly used in drives in conveyor technology (belt conveyor, plate conveyor) and for shredding machines.

This fluid coupling is also available with two working circuits (type DTVV) The parallel acting circuits double the power transmission.

We offer fluid couplings with water as the operating medium (type TWVV) especially for potentially explosive atmospheres or with outer casing made of spheroidal cast iron (type TUVV) for use in operations with relevant material requirements.

Temperature monitoring systems (MTS, BTS, BTM) increase the availability of the drive and boost the productivity of the system.


Voith GmbH & Co. KGaA
Hydrodynamic Couplings
Voithstr. 1
74564 Crailsheim, Germany

Sales, Technical Consulting, Quotations
Tel. +49 7951 32-409
Fax +49 7951 32-213

Service, Spare parts, Repair
Tel. +49 7951 32-1020
Fax +49 7951 32-554

24/7 Technical Emergency Helpline
+49 7951 32-1616

Benefits and uses

  • Load-free motor run-up
  • Smooth start-up of driven machine
  • Protects the drive in case of an overload
  • Dampens torsional vibration in the drive
  • Protects system components - the service life of your system increases
  • Robust and unsusceptible to environmental influences
  • Wear-free power transmission - reduces maintenance and repairs
  • Automatic load sharing in multi-motor drives protects your motor against overload
  • Sequential startup of the motors reduces the load on the supply circuit

Typical fields of use

  • Belt conveyors
  • Plate conveyors
  • Shredders



Type A D L d1 max. d2 max. l2 max.
274 TVV 204 328 260 42 55 90
365 TVV 296 424 374 90 65 120
422 TVV 335 470 437 100 80 135
487 TVV 382 556 488 120 90 155
562 TVV 428 634 544 130 110 170
650 TVV 494 740 646 140 120 200
750 TVV 567 846 730 150 135 240
866 TVV 641 978 830 160 150 265
866 DTVV 1125 978 On request
1000 TVV 686 1118 896 180 160 280
1150 TVV 883 1295 1093 180 180 320

Dimensions in mm

Connecting technologies for fluid couplings:

  • Elastic connecting couplings
  • Assembly with flange on the motor shaft (type T…N) with elastic connecting coupling on the drive side
  • Cardanic suspension
  • Belt pulley (type T..RI)


Technical information

Operating principle

         <br />
        Operating principle of the hydrodynamic power transmission
Operating principle of the hydrodynamic power transmission

Hydrodynamic couplings transmit mech­anical power from the motor to the driven machine via a flow of fluid. This occurs by means of two bladed wheels positioned face to face. The primary wheel (red) is connected with the motor and acts like a rotary pump, the sec­ond­ary wheel (blue) is connected to the driven machine and acts like a turbine. Power transmission is pro­por­tional to the fill level in the working circuit. As a result of the mechanical separation of the drive and driven sides, the hydro­dynamic couplings transfer the power wear-free and dampen the torsional vibration and torque shocks in the drive chain at the same time.

Constant-filled couplings

Constant-filled couplings are self-contained drive components. The different types of constant-filled couplings are mainly differentiated by the volumetric chambers , where their automatically controlled fill and emptying have a decisive influence upon start-up behavior. The demand of the drive application determines the coupling type and capacity. Constant-filled couplings are mainly used for soft start, torque limitation and dampening the torsional vibration behavior of the drive.


Voith doesn't just supply couplings, we are also your engineering partner for customer-specific drive solutions:

  • Designing of complete drives
  • Dimensioning the coupling for the optimal use of your system
  • Analysis and optimization of the operating state of drives in existing systems (retrofit)
  • We can advise you about the selection of optimal start-up technologies
  • Competence in systems for all mining equipment and the bulk material industry

Filling of a Turbo Coupling