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                                                  : VRN Type

Liquid ring vacuum pump

Design : 
Performances : 
  • Flow : up to 22 000 m3/h 
  • Vacuum : up to 10 mbar (abs) 
  • Pressure : up to 0.8 bar 

Liquid ring vacuum pump
Liquid ring vacuum pump -  operating principle
Standard materials : 
  • Cast iron with nodular cast iron impeller  
  • Cast iron, impeller in stainless steel  
  • 18/10/2.5 stainless steel *  
  • 26/5/2+Cu stainless steel *  
  • Other materials available upon request

* The values are the percentages in Cr/Ni/Mo
  • Cast iron or stainless steel casing, other materials on request 
  • Water circulation controller  
  • Bare shaft or skidded
  • Impeller made of carbon steel or stainless steel, other material on request 
  • Roller bearings, ball bearings, double taper roller bearing, depending on the application 
  • Mechanical seal (simple or double) 
  • Check valve on discharge 
  • Suction and discharge manometer 
  • Temperature and pressure switches on suction 
  • Gas/water separator 
  • Factory test with test report 
  • Long conservation packing with nitrogen insulation 
  • Engineering and documentation 
  • Automation 

Industrial applications : 
  • General vacuum 
  • Coalmine gas from closed pits 
  • Large test facilities, large flow pumps (space industry simulation tests) 
  • Power station condensors 
  • Metal surface treatment / vacuum coating 
  • Process vacuum in chemical and nuclear industries 
  • Vacuum drying 
  • Vacuum extrusion and injection processes 

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