MSP API Process Pump

Brand: Flowserve Corporation

Closely following API 610 OH4, latest edition design criteria, the MSP is a vertical, in-line, single or double stage pump. 

Featuring a medium-speed induction motor, the MSP delivers peak efficiency, excellent economy, simplified installation and reduced maintenance in low-flow, high head applications.
  • The Medium Speed Pump (MSP) Is A Variable Speed, Rigidly Coupled Vertical Inline Pump.
  • It Is Available In Single Stage Or In A Two Stage Opposed Impeller Design.
  • The Hydraulics Are Specially Designed For Low Flow High Head Applications.
  • A Medium Speed Induction Motor Provides A Speed Range From 2000 Rpm Up To 8000 Rpm
  • The Design Of The Pump Follows API 610 / 13709, Type OH4.
  • Energy Saving Technology - Pump Operates Always Closed To BEP, No Throttle Or Bypass Valve Required As Pump Speed Is Controlled By Using A Frequency Converter.
  • No Bear Box - No Lubrication System.
  • Pump Is Ready For Different Operating Conditions And A Simple Adjustment Of The Pump Speed Meets Future Service Conditions.
  • Several Optional Control Features Are Available, No Motor Starter Required, Torque Control When Pump Starts Automatically.



  • Single Stage MSP


  • Inducer


  • Double Stage Msp

Operating Parameters

  • Flows from 2 m³/hour (8.8 gpm) to 35 m³/hour (150 gpm)
  • Heads to 600 m (1970 ft) Single Stage Design, 900 m (2955 ft) 2-stage Design
  • Operating Speeds from 2000 rpm to 8000 rpm
  • Pressures to 64 bar (930 psi) for Stainless Steel, to 96 bar (1400 psi) for CS, C6, D1, D2
  • Temperatures from -46° C (51° F) to 250° C (482° F)

Size Range

  • 2 Designs (Single Stage, Double Stage) 5 Driver Sizes, 3 Different 18 Straight Vane Impeller Designs (A, B & C Hydraulic)

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