Chemical Pump - Durco PolyChem S-Series Non-Metallic

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The PolyChem S-Series chemical process pumps are powerful workhorses suitable for handling highly corrosive fluids. These non-metallic centrifugal pumps are lined with a flexible fluoropolymer, resulting in superior temperature tolerance and corrosion resistance. The S Series is designed according to the dimensional standards of ASME B73.1, ISO 2858/5199, and JIS drilling, making it adaptable to many different applications.



Durco PolyChem S-Series

FLOW UP TO 7,000 LPM (Liters per minute)
or 420 m3/hr

Features & Benefits

  • Rugged cast iron metal armour that conforms to ASTM A395 and offers durability not found in conventional plastic pumps
  • Enclosed impeller provides balanced hydraulic loads and extends bearing life
  • Self-flushing, self-venting, self-draining Advanced FM SealSentry™ Design Technology
  • Seal chamber with flow modifiers redirect solids and slurry away from the seal
  • External micrometre impeller adjustment allows for quick and accurate impeller setting
  • Silicon carbide shaft sleeve mitigates corrosion and wear

Available Options

Durco PolyChem S-Series has various options to meet your application’s unique requirements. Get in touch with our experts for more information.

  • Sealing options
  • Open impeller option
  • Baseplates
  • ClearGuard and DurcoShield pump guards
  • Spare parts
  • 10 pump sizes

Key Specifications

  • Flows to 7000 LPM or 420 m3/h
  • Heads to 145 m
  • Pressures to 17 bar


  • Steel & Primary Metals
  • Organic & Inorganic chemicals
  • Specialty chemicals
  • Biofuels
  • Pharmaceutical
  • Petrochemicals
  • Water Management
  • Wastewater


PolyChem S-Series pumps offer the advantage of innovative and readily available seal selections. Shown here are standard and recommended seal arrangements.


Design Technology Only Flowserve offers a non-metallic pump with the advantages of an oversized seal chamber with flow modifiers.


Wet End is globally preferred for its superior corrosion resistance and temperature allowance.


Industrial Chemical Pumps

In Durco PolyChem centrifugal pumps, fluid enters the impeller through the “eye” and is “centrifuged” (hence the name) to the impeller periphery. As the impeller rotates, it imparts kinetic energy onto the fluid. The impeller vanes have channels with an increasing flow path area. As the flow path area expands, the passing fluid’s velocity decreases and the pressure increases. The fluid then falls to the volute. Due to the unique shape of the volute casing, the fluid undergoes a further velocity decrease and pressure increase. This causes the liquid to be discharged through the discharge port.

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