Rotary valve couplings

Our rotary valve couplings transmit hydraulic oil to revolving tables.

Structure is designed as a rotary slide valve, which permits several 

hydraulic fixtures to be supplied simultaneously with hydraulic fluid

under pressure, and independently of that, a loading and unloading

station to clamped or released by means of distributing valves 

(see specimen circuit). The rotary valve coupling must only be 

operated with hydraulic fluid. 

All levels must be connected to the pressure generator in order to 

guarantee lubrication of the seals. Operation must only be carried out 

with the screw connections fitted. Rotary valve couplings should only 

be used for phased operation, or at very low speeds. 

The rotary valve coupling must be fitted in such a way that no bending

moment is exerted on either the stationary or the rotating component.

It has proved effective to bolt the rotating housing with the connectors to

the clamping devices, and merely to secure the rotating piston against

twisting (introducing no force on the bearing). Only hoses should be used

for the pipe connection between the torque brace and the rotary piston.