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Centrifugal self-priming

Ws+ self-priming pumps

Liquid-ring pumps for aerated liquids and foam — designed for CIP return lines. Quieter and cheaper to run than traditional liquid-ring pumps.

20–90% higher efficiency*
3 sizes
EHEDG 3-A optional

* compared with other liquid-ring pumps

Ws+ self-priming pumps REF · WS-PLUS-SELF-PRIMING
FIG. 01 — Ws+ self-priming APV
01 Overview

When there is air in the medium

A liquid ring and a special eccentric make the pump self-priming, while an impeller sized for the application keeps energy use and noise down.

  • CIP return with foam and air.
  • Can also work as a product pump.
  • Small debris passes through without damage.
02 Benefits

Why Ws+ self-priming pumps

20–90% more efficient

Better liquid flow through the pump than classic liquid-ring pumps.

Impeller for the duty

Impeller size matched to the process — optimal performance.

Quiet running

Hydraulic design far quieter than traditional solutions.

EHEDG · 3-A

EHEDG certified, 3-A optional. For CIP systems and as a product pump.

Parts shared with W+

Lower spare-parts inventory.

Robust

Small objects pass through the pump with minimal damage.

03 Technical data

Specifications

Limits for the whole range. Exact figures for a specific unit are given in the selection sheet.

Sizes Ws+ 20/15 · Ws+ 30/30 · Ws+ 44/50
Certificates EHEDG; 3-A optional
Application CIP return, aerated media, foam
Parts interchangeability with the W+ range
05 Downloads

Documentation

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Not sure which model to choose?

Tell us the medium and operating conditions — an engineer will select the unit and send a quotation with a selection sheet.