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Flowserve-Flowserve-API Process Pumps - MSP

API Process Pumps - MSP

BRAND: Flowserve

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.


  • Power
  • Oil & Gas
  • Chemical
  • General Industry

industry sectors

  • Combined Cycle
  • Upstream Exploration & Production
  • Downstream Processing
  • Basic
  • Specialty
  • Biofuels
  • Other Industries
  • Flowserve
  • ISO 13709/API 610 (OH4)
Operating Parameters
  • Flows from 2 m3/h (8.8 gpm) to 35 m3/h (150 gpm)
  • Heads to 600m (1970 ft) single stage design, 900m (2955 ft) 2-stage design
  • Pressures to 64 bar (930 psi) for SS, to 96 bar (1400 psi) for CS, C6, D1, D2
  • Temperatures from -46°C (51°F) to 250°C (482°F)
  • Operating speeds from 2000 rpm to 8000 rpm


Design Range

Size Range: 2 designs (single stage, double stage) 5 driver sizes, 3 different 18 straight vane impeller designs (A, B and C hydraulic)

Features & Benefits
  • 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 gear 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

double stage MSP



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