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Transfluid power transmission products
Constant fill fluid couplings
Transfluid K series K Series
Constant fill fluid couplings


Constant fill for electric motors and combustion engines. With pulley or in-line. With or without delay fill chamber. Power up to 2500 kW

K Series Catalog
KFBD Series
Constant fill fluid couplings


The KFBD series Fluid Couplings are used on all types of industrial equipment driven by internal combustion engines up to 500 kW. By transmitting power through a fluid, they improve overall performance and protect both driving and driven machines.

KFBD series catalog
Transfluid SKF series SKF Series
Constant fill fluid couplings


The SKF series Fluid Couplings are usedindustrial equipment driven by internal combustion engines up to 180 kW requiring a tight flywheel mounting. By transmitting power through a fluid, they improve overall performance and protect both driving and driven machines.

SKF series catalog
Transfluid KX series KX Series
Constant fill fluid couplings


The KX is a fluid coupling with a special patented circuit designed to start up large inertia machines driven by eletric motors.The circuit includes two internal tanks connected by a scoop. The scoop works like a differential pump transferring the fluid from one chamber to the other and finally into the coupling working circuit through external adjustable valves. This double passage allows a long starting time with very low starting torque and current absorbtion by the electric motor, virtually isolating the effect of the inertia of driven machine. The coupling can work using both oil and treated water as standard.

KX Series catalog
Variable fill fluid couplings
Transfluid KPTO series KPTO Series
Variable fill fluid couplilngs


The KPTO is a fluid coupling enclosed into a box connected to the Diesel engine by SAE housing. The KPTO has been designed to meet the market requirements for a unit combining the technical features of a conventional Power Take Off with the performances of a fluid coupling. The KPTO has an integral feeding pump driven by the Diesel engine. A remote electrically operated ON-OFF valve allows the fluid coupling circuit feed when turned ON and a rapid oil drain through orifices located on the periphery of the fluid coupling when turned OFF. The forced bearing lubrication is continuously assured. The KPTO range is suitable for powers up to 1000 kW. The engine fly-wheel is connected to the KPTO input by an elastic coupling. The output shaft can be connected to the driven machine by elastic coupling, cardan shaft or pulley.

KPTO Series catalog
Transfluid KTPB series KTPB Series
Variable fill fluid couplings


The KPTB is a variable fill fluid coupling designed to be a start up drive or variable speed drive. The KPTB 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.

KTPB Series catalog
Transfluid KSL series KSL Series
Variable fill fluild couplings


Transfluid has designed their KSL series variable fill fluid coupling to overcome problems experienced at "start up" and "speed variation" operation for medium and high power machines, driven by electric motors and internal combustion engines.

KSL Series catalog
Clutches & PTO's  
Transfluid Clutches & PTOs details from Transfluid's website
HFO-HFR Oil actuated Power Take-Off. Power up to 1300 kW
SH - SHC Torque up to 2,500 Nm
TPO Torque up to 11,500 Nm
PF Power take-off with elastic coupling. Between combustion engine and driven machines for in-line and pulley application. Torque up to 16,000 Nm
SU Self standing P.T.O. with SAE standard output. Radial load capability. Power up to 300 kW
Pump drives
details from Transfluid's website
STELLADRIVE MPD Full engine power transmission through center line. SAE standards face to face design. High flexibility allowing up to 8 pumps. Input power up to 1300 kW
See an MPD18 installed on a drill rig
STELLADRIVE SPD Single and dual pump drive. SAE connections with input elastic coupling. Power up to 97 kW
Flexible couplings
Transfluid Flexible Couplings details from Transfluid's website
RBD With rubber blocks. Coupling between combustion engines and pumps, compressors or generators. Torque up to 16,000 Nm
BM Flexible couplings for shaft to shaft connections. Models with brake drum and disc available. Atex certification. Torque up to 33.100 Nm