NP Series Sliding Vane Pumps

Blackmer's NP Series sliding vane pumps have been designed to provide efficient transfer when handling asphalt or bitumen.

  • For all of different transfers of raw products from storage into refinery, and from process to process within asphalt operations
  • Designed to handle wide variety of liquids at varying temperatures, pressures and viscosities
  • Available in five sizes, with port sizes from 1.5 to 4 inches
  • Flow rates from 5 to 500 gpm at operating temperatures up to 500°F with an optional jacketed pump head for high-temperature operating atmospheres
  • Can handle viscosities ranging from 30 to 20,000 ssu at differential pressures up to 150 psi with standard construction
  • Adjustable relief valve protects against excessive operating pressures
  • Sliding-vane operating principles guarantee consistent volumetric performance, even after significant in-service time
  • Self-priming and dry-run capabilities

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