DEUBLIN Balanced Mechanical Seal Technology
Original rotating unions used the media pressure to maintain seal contact. Logic indicates that as pressure increases, so do the forces holding the seals together - more pressure = tighter, better sealing. This is why they were called “pressure joints”.
However, more pressure on the rotating seal face also meant more friction, higher torque and more wear. The resulting service life was not satisfactory. DEUBLIN was aware of the disadvantage and applied “Balanced Mechanical Seal Technology”, a decisive improvement.
This simply means the load or pressure on the seal faces is kept to a minimum regardless of media pressure, resulting in a freer turning union and in longer seal life.
Optimal balance ratio allows for a thin film of “lubricating” media between the seal faces.
In order to attain sealing in a non-pressurised system, the floating seal contact is maintained by the spring pressure.