MSS Series Feed Pumps
Multistage centrifugal high-pressure feed pumps that provide a new level of reliability and efficiency in seawater reverse osmosis pumps
- 7.5 – 295 m3/h (33 – 1300 gpm)
- Pressures to 83 bar (1200 psi)
- Duplex SS Pressure Containment
- Impeller and Diffuser are 316 SS – electropolished & passivated
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.
- Shaft seal operates at low pressure
- Flexible disc coupling
- Bearing drain line (low pressure)
- 316 SS shell support bracket
- Precision leveling foot
- Grooved end pipe joints
- Duplex SS 2205 housing
- Flanged construction for easy internal inspection
- Inlet rotatable in 90° increments
- Easy shaft alignment
- Integrated motor adapter (anodized aluminum alloy)
- 316L SS stages – passivated & electropolished – proven in hundreds of SWRO applications
- WATER BEARING™
High Inlet Pressure Option
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
Please contact Customer Service for Manuals and Drawings
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