Electromagnetic loadable device and testing device for face friction torque were developed

and applied into experimental study of controllable

full water-film lubricated spiral-groove mechanical face seals.Controllable parameters of face seal

such as face temperature

friction torque

and face pressure

were measured

and the influence of axial balancing controlled load on the controllable parameters was studied.Experimental results show that the face pressure increases with increasing rotation speed

and the face temperature is higher with higher speed.The full water-film lubricated face seal has less friction force.The performance parameters of electromagnetic loadable device and testing device for face friction torque were tested in the experiment process

and the target for testing and verifying the controllability of spiral-groove face seals was implemented.The study has the important engineering value for developing real-time monitoring and active control of the spiral-groove face seal.