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  • Maximum flow rate: 31 GPM
  • Maximum delivery head: 85ft
  • Maximum temperature: 212°F
  • Viscosity: <1 to 1200 cPs
  • Pump materials: polypropylene or stainless steel
  • 39in immersion depth
  • O-ring material: FKM


The Flux Pumps F425 series is a liquid saver pump series with grease-lubricated shaft bearing and a mechanically sealed, steel cored inner tube. It has the ability to pump out 99.98% of a 55 gallon drum leaving less than 1% residual. No tilting is necessary to totally empty the drum and there is no loss of medium when taking the pump from drum to drum. There are two switch levers to open and close the foot valve. Operation against a closed valve is possible until the indicated maximum operating temperature.

There are two pump options: a stainless steel or polypropylene drum pump. Both pumps have an immersion depth of 39in (1000mm). The polypropylene pump has an outer diameter of 50mm and the stainless steel pump has an outer diameter of 41mm.