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Liquid ring self-priming pumps

A competitively priced pump specifically designed to handle a wide range of liquids including liquids with air bubbles and foam.

The pump is capable of self-priming even if the suction pipe is empty.

Models: CR40, CR42, CR50, CR52, CR60, CR65 & CR80

CR liquid ring pump, CR.jpg (18 kB)





CR brochure, CRbroch.jpg (5 kB) CR curves, CRcurve.jpg (4 kB) CR dimensions, CRdims.jpg (7 kB) Pump manual, Pumpman.jpg (3 kB)
CR.pdf CRcurve. pdf CRdims. PDF Pump.pdf
Issue 1: 10/02 (113kB) Issue 1: 04/02 (68kB) RD-2089 (200kB) Issue 8: 01/10 (908kB)
To download the Adobe PDF file, please click on either the image or the file name.


hygienic self-priming pump

316L (1.4404) stainless steel

robust design - casings 6mm thick

extensive range of models

choice of motors and seals

quick to disassemble and easy to service


ideally suited for industries:


soft drinks






wetted metal parts are 316L (1.4404) stainless steel. Casings and impellers are investment cast


internal finish is 1-2 ÁmRa machined with 0.8 ÁmRa available as an option
externally electro-polished

connections inlet and outlet can be DIN11851, Tri-clamp, IDF, SMS, RJT or flanged  
mechanical seal

carbon seat, silicon carbide face and EPDM elastomer FDA compliant
options include silicon carbide seat, PTFE elastomers, external seal and double seal (flushed)

electric motor

standard IP55, 4 pole 3 phase 380-415V aluminium or cast iron frame IE2 / IE3
options include IE4 motors, thermistors for inverter drive, ATEX, single phase 220-240V

flow rates from 2 to 55 m3/hr  
head to 45 m  
viscosity to 200 cP  
accessories stainless steel trolley for mobile operation
stainless steel motor cowl
stainless steel free standing base
  for other options and a competitive quotation please contact our sales department