Ingenieria Grupo Empresarial Actual S.A. De C.V.

DFSS and DVSS Nuclear
Radially Split,
Single Stage

CAM Nuclear
Between Bearings,
Radially Split, Multistage

WDF Nuclear
Vertical Single Stage

Standards
ASME Section III, Class 1 Nuclear
Operating Parameters
• Flows to 24 500 m3/h (108 000 gpm)
• Heads to 250 m (815 ft)
• Pressures to 170 bar (2500 psi)
• Temperatures to 300°C (580°F)
• Speeds to 1800 rpm
• Power rating to 9400 kW (12 600 hp)
Services
• Primary coolant
• Reactor coolant
• Primary heat transport
Features
• Fourth generation design
• One-piece cast pump casing
• Double volute design case for BWR
and PHWR
• Diffuser with torus-type design
casing for PWR
• Upgraded rotating element
– One-piece welded shaft-impellerjournal
assembly
– Fully machined and balanced
as single rotating unit
• Hydrostatic-pressurized radial bearing
– Operates submerged in radioactive
system water at loop temperature
of approximately 300°C (580°F)
See Bulletin FPD-2

Standards
• ASME Section III, Class 2 Nuclear
Operating Parameters
• Flows to 45 m3/h (200 gpm)
• Heads to 1920 m (6300 ft)
• Pressures to 200 bar (3000 psi)
• Temperatures to 120°C (250°F)
Services
• CVCS charge
• Safety injection
• Control rod drive
Features
• Multistage, double casing design
• Unique, compact design patented
modular impellers
– Low-flow stability and reliability
over a wide range of flows
– No surging or pulsations
• Ball-ball construction
• Dry disk spacer coupling
• Flanged axial thrust-balancing device
• Modularized assembly and
disassembly may be conducted
without the use of a torch
• Forged barrel with no
attachment welds
• Cartridge mechanical seals with
no attachment welds
See Bulletin FPD-2

Standards
• ASME Section III, Class 2 and 3
Nuclear
Operating Parameters
• Flows to 900 m3/h (4000 gpm)
• Heads to 245 m (800 ft)
Services
• Containment spray
• Low pressure safety injection
• Residual heat removal
• Pressurized and boiling water reactors
for N-stamp safety applications
Features
• Vertical, single stage design
• Bottom suction, horizontal discharge
• Forged diffuser casing design
• Optimized hydraulic performance
• Unique spacer coupling design
• Mechanical seal replacement without
motor or casing cover removal
• Upgraded rotor design
– Radial bearing located between
coupling and seal
– Reduced shaft deflection
– Improved pump and mechanical
seal life and reliability
• Cartridge mechanical seal
• Reduced assembly time
See Bulletin FPD-2