MSS Series Feed Pump

Multistage centrifugal high-pressure feed pumps that provide a new level of reliability and efficiency in seawater reverse osmosis pumps

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Quote for parts or replacement

 

Looking for higher flow rates?

The MSD Series High Pressure Pump is the FEDCO's successor product to the MSS, with 80-87% transfer efficiency for flow rates of 40 m3/hr to 1,080 m3/hr.

Learn more about the MSD

 

Pump Model

 

MSS Series

 

MSD Series

Flow range (m3/hr) 7.5 - 250 40 - 1,080
Max. Efficiency 80% 87%
Materials of Construction Duplex (316 SS) Super Duplex

APPLICATIONS

  • RO Feed, Booster or Circulation Pump
  • Any High Pressure Clean-Fluid Application

KEY SPECIFICATIONS

  • 7.5 – 250 m3/h (33 – 1100 gpm)
  • Pressures to 83 bar (1200 psi)
  • Duplex SS Pressure Containment
  • Impeller and Diffuser are 316 SS – electropolished & passivated

FEATURES

  • Balanced Impellers
  • Simple Installation and Maintenance
  • No Oil or Grease Lubricant Required
Description

MSS pumps are multistage centrifugal feed pumps specifically designed for brackish and seawater reverse osmosis service, representing the most reliable high-pressure feed pump available today.

Loaded with unique features such as the patented Water Bearing™  thrust bearing, product-lubricated shaft bearings, and maintenance-free design, the MSS ensures years of trouble-free operation. The MSS also features one of the longest warranties in the industry – a full 18 months of coverage from the date of product installation.

MSS-Parts

  1. Shaft seal operates at low pressure
  2. Flexible disc coupling
  3. Bearing drain line (low pressure)
  4. 316 SS shell support bracket
  5. Precision leveling foot
  6. Grooved end pipe joints
  7. Duplex SS 2205 housing
  8. Flanged construction for easy internal inspection
  9. Inlet rotatable in 90° increments
  10. Easy shaft alignment
  11. Integrated motor adapter (anodized aluminum alloy)
  12. 316L SS stages – passivated & electropolished – proven in hundreds of SWRO applications
  13. WATER BEARING™

Water-bearing

 
 
High Inlet Pressure Option

MSS-HP-Seal
All MSS pumps can be equipped with high inlet pressure option to allow inlet pressure to 70 bar.
This unique design features:

    • Use of low-cost, standard mechanical seals, operating at a low pressure (typically 1-2 bars)
    • Total protection of the motor from pump thrust loads – a major problem with high inlet pressure operation
    • Pump shaft kept in tension – no potential for shaft buckling
    • Handles total axial thrust – no load on motor bearings
    • Never needs lubrication
    • Bearing cooled by feed water – no ambient temperature limit
    • 316L SS stages, passivated and electropolished

Options

MSS-options-char-2t

Please contact Customer Service for Manuals and Drawings.

Specifications
MSS-15
MSS-20
MSS-30
MSS-40
MSS-55
MSS-75
MSS-90
MSS-120
MSS-200
Brochures

Click image to view brochure

MSS-brochure-cover-200-border-1

 

You might also be interested in:
  • HPB Turbo – Energy Recovery Turbo can be paired with the MSS for added pressure and efficiency
  • MSD Series Feed pumps – Super Duplex construction with exceptional efficiency and flows to 850 m3/h

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