F 640 PP/PVDF Submersible Centrifugal Pump

Tank pump with impeller for flow rates up to 700 l/min.

The F 640 PP/PVDF submersible centrifugal pump transfers highly flammable liquids from containers, tanks, and open vessels. It is suitable for applications in industry, the chemical industry, the petrochemical industry, surface technology, and water and wastewater treatment.

The pump is available in polypropylene and polyvinylidene fluoride, allowing it to be adapted to various chemical requirements. The impeller in the spiral housing supports efficient delivery of larger volumes.

Features

  • Tank pump with impeller
  • Available in two materials: PP and PVDF
  • Impeller in a spiral housing
  • Pump shaft mounted in the inner tube
  • Shaft seal with mechanical seal made of oxide ceramic/SiC
  • O-rings made of FKM
  • Steel core in the inner tube reduces thermal expansion between the inner tube and the pump shaft
  • Aerodynamically optimized impellers in various diameters
  • Two sizes available: 185 and 230
  • Outer tube made of polypropylene or polyvinylidene fluoride
  • Designed for different performance ranges

Advantages

  • Pumps low-flammability liquids from tanks and containers
  • Suitable for tall tanks up to 4.1 m without a bottom opening
  • Also pumps fluids containing solids
  • Can be used both as a mobile and stationary unit
  • Motor can be replaced if necessary
  • Hermetically sealed design ensures process reliability
  • Material options in PP and PVDF allow for adaptation to aggressive media
  • Spiral housing supports efficient pumping

Media Examples

  • Acids
  • Alkalis
  • AdBlue®
  • Fuels
  • Flame-resistant liquids
  • Fluids containing solids
  • Chemically aggressive media
  • Process media from surface technology
  • Media from water and wastewater treatment
  • Paints and coatings

Technical Specifications

Feature Specification
Flow Rate max. 700 l/min¹
Head max. 32 mWs¹
Viscosity min. 1 mPas to max. 150 mPas¹
Housing diameter Max. 264 mm²
Mounting flange diameter max. 340 mm²
Outer tube material Polypropylene, polyvinylidene fluoride
Media / Fluids Acids, AdBlue®, alkalis, fuels
Seal Mechanical seal
Mechanical seal Oxide ceramic/SiC
O-rings FKM
Containers 1,000-liter IBC, tanks larger than 1,000 liters
Design With impeller
Housing design Spiral housing
Sizes 185 and 230
Application type Mobile and stationary
Installation Containers, tanks, and open vessels

 

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