Mechanical seals R-BT-FN.NU - mechanical end seals with a conical spring and one-way direction of rotation. Can be used in pumps Lowara, Ebara (3M) and many others.
Analogue of mechanical seals: Burgmann BT-FN.NU, AESSEAL T04D, Roten UNITEN, Vulcan 13.DIN, Sterling SU3, Roplan R62D, Latty T901D, Flowserve 43D.