The R-58B mechanical seal is used at temperatures from -40 to +120 degrees Celsius, with pressures up to 5 mPa and rotation speeds up to 25 m/sec.
Execution material:
Another name is NV-3. Seals 58U (BO seat) (other designation type 251) and 59U (BP seat) (other designation type 153) are multi-spring mechanical mechanical seals for pump shafts and other units where it is necessary to minimize fluid leakage. The 58U and 59U seals fully comply with DIN 24960/EN 12756 standards.
Mechanical seals comply with the requirements of the International Standard ISO 3069, European Standards EN 12756, DIN 24960, and BS 5257 1975. Complies with API 610 technical specifications. The hydraulically balanced design allows the seal to operate at high pressures. We supply analogs and original John Crane - BS 58U, 59U. Another name is mechanical seal 251.
