Pumps & Circulators – Archived

Low NPSH Pumps – Series DB – obsolete

The DB is a close coupled pump with two centrifugal impellers back-to-back. Placement of the impellers balances the axial thrust and opposed discharges balance the radial thrust. The mechanical seal operates between the stages to prevent excessive wear.

Features and Benefits

  • Rated for 210°F (99°C) condensate in vented height-less applications
  • Cast iron, bronze fitted with stainless steel shaft
  • Carbon Tungsten Carbide mechanical seals
  • Designed for 250°F (121°C)
  • Capacities to 350 GPM (9.5 l/s)
  • Pressures to 250 psi (690 kPa)

Models (see Brochure S-431A for dimensions & weights)

DB
618
620
628

DB-F
618
620
628

ESP-Systemwize

Ready to select pumps as well as suction diffusers, triple duty valves, heat exchangers, air/dirt separators, PIC valves, and parts? Click below to open the new Bell & Gossett ESP-Systemwize selection tool and enter your duty points to begin selecting the most energy efficient system:

ESP-Systemwize

Sizing Tools:

Steam + Water Pressure Reducing Values

Software Tool and Application Support/Suggest Enhancements

Please click the button below to report issues and suggest enhancements.

Support Request

System Selection and Technical Product Support

Consult your local Bell & Gossett Representative for additional assistance.