NUCLEAR PUMPS DVSS

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This ASME Section lll, Class 1 is designed for primary coolant, reactor re-circulation and primary heat transport service with Boiling Water Reactors (BWR), Pressurized Water Reactors (PWR), and Pressurized Heavy-Water Reactors (PHWR).

  • One-piece pump casing features a double volute design for BWR and PHWR applications and a diffuser with a torus-type casing for PWR service.

  • Upgraded rotating element uses a one-piece welded shaft-impeller-journal assembly. This fully machined assembly is balanced as a single rotating unit.

  • Hydrostatic-pressurized radial bearing operates submerged in radioactive system water at loop temperature of approximately 300°C (580°F) with no external source of cooling water.

DVSS Specifications:

  • Maximum discharge pressure (bar)

    170
  • Max Speed (rpm)

    1800
  • Max head (m)

    250
  • Max. discharge size (mm)

    900
  • Max flow (m3/h)

    24500
  • Min. discharge size (mm)

    300
  • Max. temperature (C)

    300