ZPR / ZPRA (BB2) - single-stage, double-flow process pump with a radially split casing and bearings on both sides

  • Image cut-out of an Apollo ZPR process pump with bearings on both sides in accordance with API 610, pump type BB2 manufactured for offshore use.

    Bild01

  • Close-up of an Apollo ZPRA pump (single-stage, double-flow process pump with between bearings) during assembly of the pump unit. The pump has an axial inlet. Workshop elements and a storage rack can be seen in the background.

    ZPRA01

  • The cutout shows a vertical, single-stage, double-flow feed pump with intermediate storage in accordance with API 610 as vertical BB2. The pump is used on an offshore platform and is color-coded in accordance with NORSOK M-501.

    ZPRV01

Single-stage, double suction volute casing pump according to API 610 or ISO 5199. The ZPR (BB2) process pump is especially suitable for high pressures and high temperatures and can be designed with a variable casing design according to customer requirements.

Operation limits ZPR/ZPRA

  ZPR ZPRA
Q (m³/h) 1 500 4 000
H (m) 450 300
P (bar) 160 55
T (° C) + 450 + 450

Application Industries

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A white symbolic image depicting a refinery with an oil tank, steel tower, and flame represents the refinery, oil, and gas industry. The background is blue.
A white symbolic image of an offshore oil rig represents the offshore industry. The background is blue.
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Based on solid design, between-bearings version, low NPSH values, and the suitability for high pressure and temperature this pump series have various applications:

  • refineries
  • petrochemical plants
  • special applications
  • offshore engineering
  • power plants
  • system areas - oil and gas tanks
ZPR: BB2 pump with characteristic curve field for pressure-volume flow characteristics at variable speed.
ZPR - characteristic curve
ZPR quarter cut
  • single-stage, radial-split, volute casing pump of double-volute design
  • double-flow impeller
  • with bearings on both sides BB2
  • centerline-supported
  • variable nozzle arrangement possible
  • internal and external sealing by means of helical wound metal/graphite seal
  • a design with wear plate is possible
  • ZPRV as vertical version
  • grey cast iron
  • ductile cast iron, ADI materials
  • cast steel
  • 12 % chromium steel
  • austenitic steel
  • special alloys
Sectional drawing of a ZPR (BB2) centrifugal pump with inducer in blue, yellow, and red.
  • Inducer is an additional upstream impeller of screw type which provides very low NPSH values
  • Design of the inducers is selected according to specific application range of Customer.
  • In case of double-flow impeller upstream inducers are applied on both sides.
3D visualization of a BB2 single-stage, double-flow process pump with suction and discharge nozzles arranged in line on the side.
  • Suction and discharge nozzles have inline arrangement
  • optimum casing design for specific design of piping depending on project requirements
ZPRV Viertelschnitt
  • special vertical design as BB2 pump

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Apollo Goessnitz GmbH - European pump manufacturer from Germany. We stand for quality and innovative solutions in customised pump technology.

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