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Flowserve-Flowserve-Nuclear Pumps - DVSS

Nuclear Pumps - DVSS

BRAND: Flowserve

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).


  • Power

industry sectors

  • Nuclear
  • ASME Section III, Class I
Operating Parameters
  • Flows to 24 500 m3/h (108 000 gpm)
  • Heads to 250 m (820 ft)
  • Discharge pressures to 170 bar (2500 psi)
  • Temperatures to 300°C (580°F)
  • Speeds to 1800 rpm
  • Power rating to 9400 kW (12 600 hp)
Design Range

Size Range: 12" to 36" discharge

Features & Benefits
  • 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.

Vertical Single stage


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