Single Case Pumps - Radially Split-WTB
Product Brand
Between Bearings Pumps
Single Case Pumps - Radially Split
About this product

Made in two- and three-stage designs with top/top nozzles, the Flowserve WTB pump is a between bearings, radially split, volute type process pump engineered to provide safe, reliable operation at elevated temperatures and pressures. To reduce NPSHr, a double-suction, first-stage impeller is standard on all but the two smallest sizes. Featuring hydraulics that fall between that of a typical two-stage BB2 pump and a typical multistage BB5 barrel pump, the unique three-stage WTB is a reliable solution for niche applications in refineries, chemical and petrochemical operations, and power plants.

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  • Heavy-Duty, Dual Volute Casing With an Integral Crossover ensures radial hydraulic balance and stable performance over the pump’s full operating range.
  • Centerline Supported, Radially Split Design prevents distortion at high temperatures and pressures.
  • Double-Suction First-stage Impeller minimizes axial thrust and significantly reduces NPSHr, often eliminating the need for booster units.

ISO13709 / API610 (BB2)

Flows to: 1400 m3/h (6165 gpm)
Heads to: 1100 m (3610 ft)
Pressures to: 108 bar (1565 psi)
Temperatures to: 430°C (800°F)

Size Range: 4,6,8 & 10 inch

Pressure Class Range: Pressures to 108 bar (1565 psi)


  • S5
  • S6
  • S8
  • C6
  • A7
  • A8

Optional Coke Crusher

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