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WXB/WXBB Between Bearings Pump – Horizontal, Multistage, Double Case
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WXB/WXBB Between Bearings Pump – Horizontal, Multistage, Double Case

The WXB is a multistage, diffuser-casing barrel pump with tandem impellers and a balance drum to carry axial thrust forces. It is designed for users who need the hydraulic range and performance of a ring section pump, but demand the design and maintenance attributes of a barrel pump. An extension of the well-proven WXB, the WXBB is an API 610-style, multistage barrel pump which incorporates Barske style impellers to produce stable low-flow performance. It is a reliable, direct drive solution for low-flow, high-head applications.

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Features & Benefits

Designed to meet the intent of API 610, latest edition the WXB pump is a BB5 category, double case horizontal, multistage, centerline mounted barrel pump.

The compact, space-saving design has a convenient cartridge-style construction to minimize maintenance down time. The WXB is field proven in oil refineries and petrochemical plants throughout the world and first choice for medium demanding applications – in all services where process conditions demand a barrel construction, process industry, refineries, chemical and petrochemical plants, liquefied gas stations, condensate service and boiler feed service.

A full range of sizes from 2” to 6” combined with a wide range of hydraulics, numbers of stages and all API material columns allows the WXB to be applied across the complete breadth of the market. An on-going research and development program guarantees an up-to-date product, constantly evolving to meet the latest standards API 682  mechanical seal chambers, ASME, ATEX, CE marking etc.

The WXBB pump is a horizontal, double case, diffuser collector, multistage, centerline mounted between bearing pump designed to meet API 610 latest edition requirements. The inner element is constructed as a two piece channel ring/diffuser stage and Barske impellers mounted in-line (tandem), utilizing a straight balance drum at the discharge side to balance residual thrust.

The hydraulics are specifically developed for stable performance in low flow high head applications.


Spefification

    • Hydraulic Institute
    • API 610
    • API 682 seal chamber and seal flush plans
    • ASME, ATEX, PED

    WXB

    • Flows to 300 m3/h (1320 gpm)
    • Head to 1200 m (3940 ft)
    • Pressure to 150 bar (2175 psi) as standard; to 200 bar (2900 psi) on back-to-back configuration
    • Temperature from -75°C (-103°F) to 300°C (572°F)

    WXBB

    • Flows from 4.5 m3/h (20 gpm) to 35 m3/h (154 gpm)
    • Heads to 1560 m (5116 ft)
    • Pressure to 200 bar (2900 psi)
    • Temperature from -46°C (-51°F) to 200°C (392°F)

    Size Ranges

    WXB

    • 4 frame sizes
    • 13 hydraulics
    • Up to 16 stages

    WXBB

    • 1 size
    • 8 hydraulic designs


Industries

  • Power
    • Conventional Steam
    • Combined Cycle
  • Chemicals
    • Basic (Organic & Inorganic)
    • Specialty (Fine & Consumer)
    • Biofuels
    • Petrochemicals
  • Oil & Gas
    • Upstream Exploration & Production
    • Midstream Transportation
    • Downstream Processing
  • General Industries
    • Other Industries

Documents & Support

Related Literature

Oil and Gas Barrel Pumps – Brochure

WXBB Pumps Bulletin


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