Seal R-58U - multi-spring unbalanced seal equipped with an O-ring. Mechanical seal 58U, 59U (251/153).
Mechanical seal parts materials:
| Speed | Environment |
| 25 m/s | Chemically active liquids, refined products, water, condensate, food production liquids, contaminated water and production waste, liquids in the production of medicines. |
Another name is NV-1 (in some cases NV-3).
Seal 58U (BO seat) (another designation is type 251) and 59U (BP seat) (another designation is type 153) are multi-spring mechanical mechanical seals for shafts of pumps and other units where it is required to minimize leakage of the medium. 58U and 59U seals are fully compliant with DIN 24960 /EN 12756.
Mechanical seals comply with International Standard ISO 3069, European Standards EN 12756, DIN 24960, and BS 5257 1975. Complies with API 610 specifications.
The hydraulically balanced design allows the seal to work at high pressures. We supply John Crane analogues - BS 58U, 59U. Also called mechanical seal 251, this equipment is used in a variety of applications, including marine equipment, mixers, agitators, compressors in a variety of applications.
Rotation is carried out in any direction, the rotating part is installed with an interference fit over the rubber bellows, which allows the transmission of torque and installation of the seal in the desired place using locking screws.
Analogue of mechanical seals: John Crane 58U, Burgmann BT-C5.KU, AESSEAL M03S, Vulcan 1659S, Sterling 259S.
