FEDCO MSS-55 Multistage Centrifugal High Pressure Feed Pump
Manufactured by Fluid Equipment Development Company (FEDCO), Monroe, Michigan, USA — supplied by ForeverPure Corporation, an authorized FEDCO distributor based in Santa Clara, California.
The FEDCO MSS is a compact horizontal multistage centrifugal high-pressure feed pump for SWRO and BWRO, custom-built to each customer's flow and pressure point. It uses FEDCO's Water Bearing™ technology and a compact footprint suited to small and mid-size desalination skids.
? Made to Order — Call for Availability
Each FEDCO pump is built to order at the FEDCO factory in Monroe, Michigan, sized to the customer's specific duty point (flow, pressure, feed TDS, recovery, materials of construction).
Typical lead time: 6–8 weeks (Super Duplex 2507) or 3–6 weeks (other materials). Call for current availability.
Call +1-408-969-2688 or request a quote — ForeverPure's applications team will confirm the right model, options, lead time, and project pricing.
Theory of Operation
Multiple stages — each with a 316L impeller in a Duplex SS stage housing inside a Super Duplex shell — build pressure incrementally. The Water Bearing™ thrust system uses pumped product water as a hydrostatic film, keeping the shaft in tension and eliminating oil / grease maintenance. Each MSS pump is built to the specific duty point requested.
Key Engineering Advantages
- Compact footprint for skid-mount and containerized SWRO
- Custom-built to each duty point
- Patented Water Bearing™ — oil/grease-free
- Super Duplex shell for chloride-rich seawater service
- Removable mechanical-seal cartridge
- Rotatable inlet for piping flexibility
Applications & Industries
Typical Applications
- Compact SWRO high-pressure feed
- Brackish-water RO feed
- Marine and containerized desalination
- Industrial RO and water reuse
Industries Served
- Municipal desalination
- Marine and offshore
- Hotels, islands, and resorts
- Oil & gas
- Industrial water reuse
Sizing & Selection
Model number convention: best-efficiency feed flow in m³/h. Best efficiency is typically achieved within ±20% of nominal flow — for duty points outside this range, consult ForeverPure to confirm the correct frame size.
Provide your feed flow, required boost / discharge pressure, feed TDS, recovery, and temperature with your quote request. ForeverPure's applications team returns the correct model, options, lead time, and project-specific pricing.
Frequently Asked Questions
What is the FEDCO MSS-55?
The FEDCO MSS is a compact horizontal multistage centrifugal high-pressure feed pump for SWRO and BWRO, custom-built to each customer's flow and pressure point. It uses FEDCO's Water Bearing™ technology and a compact footprint suited to small and mid-size desalination skids.
What is the FEDCO MSS-55 used for?
Typical applications include compact swro high-pressure feed; brackish-water ro feed; marine and containerized desalination. Industries served: municipal desalination, marine and offshore, hotels, islands, and resorts.
What materials of construction does the FEDCO MSS-55 use?
Wetted parts are shell: super duplex ss. shaft: super duplex ss. impeller: 316l. stage housing: duplex ss., providing corrosion resistance suited to seawater and chloride-rich brackish-water service.
What feed-water types is the FEDCO MSS-55 suitable for?
Seawater, Brackish Water, Potable Water (20-micron prefilter). Operating temperature limit: <40°C (104°F) standard.
Where can I get the FEDCO MSS-55 datasheet, performance curve, and pricing?
Datasheet, pump curve, drawings, and project-specific pricing for the FEDCO MSS-55 are available on request from ForeverPure Corporation. Submit a quote request through the website with your duty-point information and the applications team will respond with model selection, options, lead time, and pricing.
Is the FEDCO MSS-55 in stock, and what is the lead time?
The FEDCO MSS-55 is built to order at the FEDCO factory in Monroe, Michigan — each unit is sized to the customer's specific duty point, materials of construction, and configuration options. Typical lead times: 3–6 weeks for Duplex 2205 and 6–8 weeks for Super Duplex 2507. Call ForeverPure at +1-408-969-2688 or submit a quote request for current schedule and to confirm availability for your project.
What is the warranty on the FEDCO MSS-55?
Warranty: 18-month standard warranty. Extended-warranty options are available on request. ForeverPure provides factory-authorized installation, commissioning, and spare-parts support.
Need engineering support, sizing help, or a project quote?
Contact ForeverPure Corporation — Authorized FEDCO Distributor • Santa Clara, CA • +1-408-969-2688 • sales@foreverpure.com
