Marelli BB1 between bearings, axially split case with a single or double suction impeller, one stage double suction centrifugal pump

Designed for aggressive pump processes requiring robust casing and custom hydraulics.

Designed to heavy API-610 BB1 and ISO 13709 compliant standards for general refinery services, the PDH-LH pump features an axially split case with a single or double suction impeller, one stage of double suction and a centerline design for higher temperature services

  • Flows to 27,298 gpm (4,905 m³/hr)
  • Heads to 600 ft (200 m)
  • Suction Pressure 130 psi (9 bar)
  • Temperature Range -22 to 302°F (-30 to 150°C)

These precision engineered API/ISO 13709 process pumps meet rigorous engineering requirements for medium to high flow crude oil and petroleum products, pipelines and ship loading & unloading applications.


  • Cooling water
  • Distillation
  • Sulfur recovery
  • Loading
  • Boiler feed boosting
  • Crude oil pipeline
  • Desalination
  • Water transfer

Standard Features and Benefits

  • API-610 10th Edition / ISO 13709 Full Compliance for reliability and accountability
  • Suitable with 60 Hz and 50 kW motors
  • Higher efficiencies due to a design with tangential discharge and a wide variety of hydraulics to match exact duty points
  • Labyrinth bearing seals to avoid external contamination and maximize seal and lubrication life
  • Highly maintainable and replaceable wear rings to reduce overall life cycle costs
  • Mechanical seal chamber API-682 3rd Edition.  Also complies to API-610 standards
  • Choice of multiple impellers in each hydraulic pump casing for optimum efficiency over a wide operating range
  • A variety of instrumentation options are available for monitoring all key operating perimeters (temperature, pressure, vibrations and more)

US 60 Hz

  • Heads to                                                  600 ft
  • Flows to                                                   27,298 gpm
  • Standards                                               API 610 BB1
  • Maximum Motor Power                           2,000 HP
  • Temperature Range                                -22 to 302°F
  • Maximum Case Working Pressure          218 psi
  • Maximum Suction Pressure                     130 psi
  • Differential Head                                      525 ft
  • Maximum Viscosity                  Consult Factory
  • Mounting Configuration         Horizontal side-side
  • Seal Configurations                 Packing with optional mechanical seals
  • Available Flanges                    PN16 FF/RF
  • Suction and Discharge Size      up to DN650

Metric 50 Hz

  • Heads to                                                  200 m
  • Flows to                                                   4,905 m3/hr
  • Standards                                                API 610
  • Maximum Motor Power                           1,500 kW
  • Temperature Range                                -30 to 150°C
  • Maximum Case Working Pressure         15 bar
  • Maximum Suction Pressure                     9 bar
  • Differential Head                                      160 m
  • Maximum Viscosity                  Consult factory
  • Mounting Configuration         Horizontal side-side
  • Seal Configurations        Packing with optional mechanical seals
  • Available Flanges           PN16 FF/RF
  • Suction and Discharge Size   up to DN650
Pressure CasingCarbon Steel (A216 WCB)12% CHR316 AUSDuplex
ImpellerCast IronCarbon Steel12% CHR316 AUS12% CHR316 AUSDuplex
Wear RingsCast Iron12% CHR HardenedHard-faced 316 AUS12% CHR HardenedHard-faced 316 AUSHard-faced Duplex
ShaftCarbon SteelAISI 4140316 AUS12% CHR316 AUSDuplex
Bearing HousingCarbon Steel (A216 WCB)
Base GasketAUS, Spiral Wound316 AUS Spiral WoundAUS, Spiral Wound316 AUS, Spiral WoundDuplex SS Spiral Wound

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About Sundyne

Sundyne sets the standard for centrifugal integrally geared pumps. Over the years, Sundyne has also acquired some of the industry’s leading brands. This combination has expanded the Sundyne product line, offering a wide range of fluid handling services and solutions.