Silent Partner

Sound Attenuated Enclosure

Silent Partner™

High-performance, automatic-priming, run-dry pump system with the specially designed, sound attenuation enclosure. Silent Partners are quiet, run cool, provide easy access to all components and are heavy duty.

MWI introduces the newest addition to its lineup – The Silent Partner™. The Silent Partner is the high-performance, automatic-priming, run-dry pump with the specially designed, sound attenuation enclosure. Quiet, easy to and perfect for residential areas, near hospitals, government buildings, schools and wherever quiet operations are required. The engine control panel is protected behind a lockable clear window that provides easy access. These units are perfect low key operations, such as residential areas and hospitals. The design of the Silent Partner is optimized for pumps that are run hard in difficult environments.

MWI offers a wide selection of engine control panels. Tha panels are designed for fully automated operation, including fault indicator lights, auto start-stop and telemetry. The Silent Partner can house the Hydraflo™, PrimeRite™, DuraFlo™, and RotoFlo™ in it’s enclosure.



  1. Heavy-duty steel enclosure with sound-absorbing insulation, engine vibration isolators, priming exhaust muffler and Cowl critical grade muffler for quiet, trouble free operation.
  2. Quick and easy access to all critical components with multiple large access panels.
  3. Doors open to the side to avoid head injuries and the problems of limp struts that won’t hold the panels open.
  4. Runs cool for long engine life.
  5. Designed specifically for pumping in tough environments.
  6. Engine/Pump Control Panel is protected inside the enclosure but can be observed and accessed through a special window.
  7. Lifting bail for easy transport.
  8. Easy access to suction and discharge fittings.
  9. Available in skid or DOT highway trailer.
  10. Entire enclosure unbolts to provide complete access to the pump, engine and all components.

More Features

11. Available for: PrimeRite™, RotoFlo™ and drive units for DuraFlo™ and Hydraflo™.
12. Remote volute drain on PrimeRites™.
13. Remote engine oil drain to make oil changes quick and easy.
14. Radiator access port for external topping off.
15. Exhaust in secondary enclosure to reduce temperature and keep the inside clean.
16. Lockable enclosure.
17. Bolt together modular construction – easily remove or add: lifting bail, tow bar, axle and bumpers to go from skid to portable or vice versa.



Our pumps are extensively tested and continually refined based on experience and feedback from customers. Due to continual improvement of our products, we reserve the right to change designs and specifications.