VLT Vertical Process Pump

Vertical Canned Process Pumps

The VLT is a vertical process pump, available in VS1 and VS6 configuration as defined by API 610

Operation limits

Capacity 100 to 1,600 m³/h (7,000 gpm)
Head up to 1,494 m (4,900 ft)
Maximum Pressure 140 bar (2,020 psi)
Temperature -195 to 565 °C (-320 to 1,050 °F)
Applications Petrochemical Plants, Power Plants, Municipal, Hydrocarbons, Pipeline, Refineries, Offshore Technology, Gas Processing Plants.


The VLT is a vertical process pump of the “double casing” type as defined by API-610. By multi-staging series stages in the low and medium specific speed design range,the VLT provides outstanding efficiencies and low cost operation in high head applications. The special first stage allows operation with extremely low NPSH requirements while running at optimum speeds. Exclusive hydraulic and mechanical features provide continuing reliability with optimum performance.

  • Low NSPH "Shockless Engry" first stage impeller
  • Double suction first stage available
  • Over 700 vertical Ruhrpumpen pump hydraulics can be used for construction
  • Integral fabricated column support bearings
  • Collet or ring and key impeller mounting
  • Rigid 4-piece coupling
  • Single or Double Suction first stage
  • Single Stage or Multistage available
  • Nozzles are available with the suction in the head or barrel
  • Construction according to API 610 latest edition (VS6 type)
  • Fabrications manufactured using ASME
  • Section IX code qualified welders for API applications
  • Fabrications designed in accordance with PED (Pressure Equipment Directive) and national standards when required
  • Wide range of hydraulic designs to suit all applications
  • Choice of bearings and mechanical seals
  • Pump mounted thrust bearing when required

Ruhrpumpen's vertical process pumps have led the market since the 1950's. These pumps can be offered:

  • fully API 610 (latest edition) compliant
  • for cryogenic services for low temperature applications
  • non-API for condensate services