Flowrox™ FXM metering pumps

FXM pumps for accurate metering

Flowrox™ FXM metering pump is ideal for chemical dosing applications which require accurate metering. To optimise metering performance, we offer FXM2 and FXM3 series pumps with improved performance.

Accurate and safe metering
Positive displacement provides same output on every cycle

Versatile system connectivity
Diverse programming options and controllability

Maintenance mode for safe tube changing.

Technically improved Utilizes latest technology for highest reliability

Improved performance

To optimise metering performance, we offer FXM2 and FXM3 series pumps with improved performance. Compared to the previous generation, FXM pumps have expanded logic programming and functionality and also higher capacity. Maximum flow of the FXM2 model reaches up to 176 l/hr (46.5 GPH) and FXM3 up to 840 l/hr (221.9 GPH). Working pressure of FXM2 goes up to 8.6 bar (125 psi) and FXM3 up to 4.5 bar (65 psi). They can also withstand fluid temperature up to 54° C (130° F). Combined with accurate metering and a selection of different tube materials, the FXM pumps are an ultimate choice for chemical dosing applications. 

Complete solutions & expert advice

Valmet flow control pump professionals will consult you and help to size and choose the right pump for the right application. We also handle service of all pumps and provide all needed spare parts.

Both models, FXM2 and FXM3 pumps have a handle and are easy to carry.

Technical specifications

Series: FXM2 & FXM3
Flow range: 0 - 840 l/h / 0 - 221.9 GPH
Pressure range: 0 - 8.6 bar / 0 - 125 psi
Temperature range: 0 - 54 °C / 32 - 130 °F

Reliability and safety improved

Accurate and reliable operation

Positive displacement of the tube bore with zero slip provides same output volume on every cycle. There is no variation due to the discharge pressure condition. The compression point of the tube acts as
self-cleaning check valve without clogging risk providing clear flow path with no possibility for vapour lock.


  • Accurate and safe metering
  • Self-priming (up to 90 % of full vacuum)
  • Only the tube and tube fittings are in contact with the process medium
  • Serviceable rotor construction for ease of maintenance


  • Versatile system connectivity, diverse programming options and controllability
  • Fully reversible operation
  • Dry run capability 
  • Digital touchpad adjustment – precise and reliable
  • Wide selection of tube materials
  • Tube failure detection
  • NEMA 4X / IP66 enclosure
  • Available display languages: English, Finnish, French, German, Russian and Spanish

Technical improvements

  • New motor and control circuit: the pump runs accurately and smoothly also at lowest speed
  • Serviceable rotor construction: can be disassembled for maintenance
  • Field switchable power cord: easy to disconnect, no need to open pump casing
  • Operation adjustment through digital touchpad: precise and reliable performance
  • Modern digital technology for highest reliability
  • Contactless, external leak sensor for tube failure detection: the medium does not damage the sensor in case of a leak.
  • Bigger display: easier to read, fits more information
  • Pump has a handle: easy to carry

Ideal applications

  • Waste water/water treatment chemicals
  • Reagents for mining processes
  • Pulp & paper chemical metering
  • Various industrial chemical dosing duties


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