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RVKu

Chemical centrifugal pump in plastic

The vertical centrifugal pump RVKu is specially designed for pumping aggressive, slightly contaminated media such as acids, alkalis and chemical waste water. The closed impeller design with long axial throttle gaps allows immersion depths of up to 3m at operating temperatures of 90°C. Smooth running of the shaft is ensured by the use of a ball joint bearing located outside the aggressive zone as well as an immersion plain bearing made of SIC, carbon or ceramic.

Design Features

Design

Vertical centrifugal pump

Material

Plastics

Size

DN 32 - DN 250

Impeller

semi-open or free-flow impeller (Type RVKuF)

Delivery rate

Qmax. = 1.000 m3/h

Delivery head

Hmax. = 70 m

Depth

from 3,00 m

Temperature

-40 °C to 90 °C

Nominal pressure

10 bar

Aggressive, even slightly contaminated liquids such as acids, alkaline solutions and chemical effluents

Norm

ISO 5199

Type

Vertical, single-stage

Construction

Back-pull-out design according to ISO 2858

Casing design

Single or double volute casing

Installation versions

Wet installation

Impeller

semi-open or free-flow impeller (Type RVKuF)

Bearing lubrication

Grease lubrication

Installation versions

Base frame welded or base plate cast

Ambient temperature

-20°C to 60°C

Solid content limit value

approx. 30 %

Sealing of shaft against the atmosphere by means of lip seal or meintenance-free Labyrinth seal

  • Polyvinyliden-Fluoride PVDF
  • Polypropylene PP
  • Polyethylen PE 1000 UHMW-PE