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Liquiflo Polyguard PFA Lined Gear Pumps

  • Overview
  • Features & Benefits
  • Specifications
  • Other Info
  • Case Studies

Overview

Liquiflo Polyguard Series PFA Lined Gear Pumps are an excellent choice for pumping chemicals that require expensive alloys in metallic pumps, such as inorganic acids, bases and salts like Hydrochloric Acid, Ferric Chloride, Sulphuric Acid, Hydrofluoric Acid, Sodium Hypochlorite, Nitric Acid, Sodium Hydroxide and Chromic Acid.

They are also the first choice for high purity services where contact with metallic components must be avoided.  Wetted materials include PFA-lined stainless steel pressure components with Silicon Carbide shafts and a choice of non-metallic materials for the bearings, wearplates and gears.

No Wetted Metal Components

  • PFA-Lined pressure boundary components
  • Self Sintered Silicon Carbide (SIC) shafts
  • PFA-Encapsulated Inner Magnet
  • Wearplates of either Ceramic, Carbon, PEEK, Ryton or Teflon
  • Gears of either PEEK, Ryton or Teflon
  • Bearings of either SIC, Carbon, PEEK, Ryton or Teflon

Advantages of PFA-Lined Stainless Steel Housings

  • Traditional pressure integrity expected of metal pumps
  • Exempt from wicking problems associated with fibre reinforced housings
  • Limits the effects of heat entrapment and corresponding thermal expansion issues
  • Limits the effect of fluid absorption
  • Increases strength and durability required for process pump services

Benefits of SiC Shafts & Bearings

  • Exceptional chemical resistance
  • Exceptional wear resistance

PFA-Lined Containment Cans

  • Alloy-C containment can limits eddy current development and subsequent heat generation
  • PFA-lined carbon fibre containment can eliminate eddy currents altogether
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