Transfluid Series KPT for electric motors

VARIABLE FILL
FLUID COUPLING
KPT TRANSFLUID
(for electric motors)

DESCRIPTION
The KPT is a variable fill fluid coupling designed to be a start up drive or variable speed drive. The KPT has an externally driven oil feeding pump and a remote electrically operated ON-OFF valve. When the valve is turned ON the fluid coupling circuit is fed, when it is turned OFF rapid oil drain occurs through orifices located on the periphery of the coupling. The forced bearing lubrication is continuously assured. The oil pump flow can be operated through any kind of variable speed device allowing KPT to be a variable speed drive.

The KPT range is suitable for powers up to 1700 kW as start up drive and 500 kW as variable speed drive. The input and output straight shafts can be connected to electric motor and driven machine by elastic and flexible couplings.

Standard accessories include: oil motor pump, oil filter with pressure and temperature gauges, ON-OFF electric valve, oil temperature switch, oil level indicators, connecting wiring box with plug. Optionals and include: water or air heat exchanger, quick release valves, output pulley, flexible and elastic couplings, cardan shafts and electric control board.
FEATURES
The variable fill fluid coupling allows a disconnect of the motor from the load granting the following advantages:

motor start up at no load
smooth start up even possible under nominal motor current
shock and overload protection
absorbtion of vibrations
high radial load capacity (KPTE)
no belt slip
remote control by electric valve
load positioning
cheap and easy maintenance due to external mounting of the main accessories like oil filter, feeding pump and control valve
longer life thanks to no friction linings to wear out
accurate variable speed performances