Skip to content
VELLKEN

Engineering

Technical selection

Selection, cross-reference and documentation support built around the operating data.

What we review

  • Flow
  • Head
  • Differential pressure
  • Medium
  • Viscosity
  • Temperature
  • Materials
  • Sealing
  • Connection dimensions
  • Rotation

What we support

  • 01

    Duty point selection

    Reviewing flow, head and fluid data to define a suitable pump type and size.

  • 02

    Cross-reference

    Comparing an existing pump against available alternatives and interchangeable parts.

  • 03

    Component compatibility

    Checking materials, sealing and clearances against fluid and temperature.

  • 04

    System interfaces

    Connections, baseplate, coupling, motor and installation envelope.

  • 05

    Documentation

    Working from nameplates, datasheets, sectional drawings and parts lists.

  • 06

    Sourcing options

    Presenting original, compatible and alternative routes with their trade-offs.

Engineering data

Tell us the duty.We'll help define the pump.

The more of this datasheet you can fill in, the tighter the selection. Unknown values are normal — we work with what exists.

Final pump selection is always confirmed technically before an order is released.

Duty data sheet

VLK-DS-01Rev. AInput
#ParameterUnit
  • 01FlowRequired capacity at the duty pointm³/h
  • 02HeadTotal dynamic headm
  • 03Differential pressureDischarge minus suction pressurebar
  • 04FluidMedium and, if relevant, its grade—
  • 05ViscosityAt operating temperaturecSt
  • 06TemperatureOperating and, if known, range°C
  • 07DensityAt operating temperaturekg/m³
  • 08SolidsContent and particle size%
  • 09MaterialsCasing, rotating parts, elastomers—
  • 10SealMechanical seal, packing or magnetic drive—
  • 11SpeedFixed speed or variable driverpm
  • 12MotorRated power and framekW
  • 13VoltageSupply voltageV
  • 14Frequency50 or 60 HzHz
  • 15InstallationOrientation, baseplate, envelope—
  • 16Existing pumpManufacturer, model, serial number—

Scope and limits

  • 01We work from the data supplied and state clearly where an assumption was made.
  • 02Where information is missing, we say what has to be measured or confirmed.
  • 03No selection is treated as final until it has been technically confirmed.

Process

How it works

Four steps from an existing pump to a commercial offer.

  1. 01

    Send

    Pump model, nameplate, drawing or operating data.

  2. 02

    Review

    We review the application and compatibility requirements.

  3. 03

    Select

    Original, compatible or alternative solution.

  4. 04

    Quote

    Commercial offer and delivery option.

Need a replacement pump?

Send us the model.

Send us the nameplate.

Or simply tell us what the pump needs to do.

Start an RFQ

Final pump selection is always confirmed technically before an order is released.