All of Corken’s regenerative turbine pumps are known as a Coro-Flo®. The MDC-model (Magnetic Drive Coro-Flo) is a stainless steel turbine pump with a sealless magnetic drive configuration. The close-coupled magnetic drive pump mounts directly to a Corken supplied C-Face motor so no coupling or special alignment procedures are required. Installation is quick and easy. A close-coupled design is a great option when space is limited. With a sealless design there are no mechanical seals so you get maximum liquid containment when handling corrosive and toxic liquids.


MDC-model turbine pumps are designed for low capacity, medium head pumping applications involving corrosive liquefied gases such as aqueous and anhydrous ammonia, carbon dioxide, sulfur dioxide, chlorine, hydrogen chloride and many more.


The MDC-model industrial pump is designed for simplicity of inspection and service. All maintenance can be performed by simply draining the pump using the drain port and removing the pump cover. Since the impeller is the only moving part, downtime and maintenance costs are minimized. Available with NPT and slip weld connections.

Operating Specifications

  • Flow rates up to 23 gpm (87 l/min)
  • Working pressures up to 300 psi (20.7)
  • Differential pressures up to 250 psi (17.2 bar)
  • Temperature range: -150 to 450 °F (-101 to 232 °C)
  • Viscosities up to 32 SSU (6.8 cSt)


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  • Available in two pump sizes
  • Single-stage pump
  • Close-coupled design is compatible with a 1 to 7.5 hp motor
  • Sealless magnetic drive
  • Available with NPT or slip weld connections
  • Pump case and cover: Stainless steel only
  • Impeller: Stainless steel only
  • Shaft: Stainless steel only
  • Bearing: Carbon, extended life carbon or PTFE
  • Wear plate: Carbon or PTFE
  • Containment can: Stainless steel or corrosion resistant alloys
  • Drive magnet assembly: Neodymium or Samarium (above 300°F)
  • Driven magnet assembly: Neodymium or Samarium (above 300°F)
  • Magnetic casing: Stainless steel only
  • Shim: Mylar or aluminum (above 300 °F)
  • O-rings: PTFE, Buna-N, ethylene-propylene, Viton, Neoprene or Kalrez. Registered trademarks of DuPont
  • Ideal for low capacity applications that require medium head
  • Free-floating has no metal-to-metal contact and minimizes wear between the pump casing, impeller and cover
  • Utilizes a magnetic drive configuration so no mechanical seals are required
  • No vibration or pulsation – delivers years of quiet trouble-free service
  • Compact, close-coupled design eliminates alignment issues and makes installation easy
  • Does not require a couple and coupling guard so installation costs are minimized
  • By simply removing the pump cover, you can easily replace the internals without disturbing the piping
  • Primary and secondary drain ports allow you to easily drain the pump before performing routine maintenance
  • Pump nozzles can be rotated into four 90 degree increments
  • Continuous-duty service
  • Highly corrosive aqueous liquids
  • Aqueous ammonia
  • Anhydrous ammonia
  • Sulfur dioxide
  • Carbon dioxide
  • Solvents
  • Propane
  • Gasoline
  • Refrigerant gases
  • Water
  • Many more light liquids
  • Cylinder filling
  • Aerosol propellant/filling
  • Liquefied gas transfer
  • Boiler feed (up to 450°F)
  • Vaporizer feed
  • Foam blowing
  • Reflux pump for gas liquids
  • Selective Catalyst Reduction (SCR)