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Refurb of 4 Allen Gwynnes Vertical Mixed Flow

16 January 2019

Allen Gwynnes 24" and 48" mixed flow pumps.

Environment Agency.

To remove repair and re-install 4 pumps orginally installed in 1949. Due to the length of service, the pumps were extremely worn. Allen Gwynnes pumps are no longer manufactured so spare parts are no longer available.

Work Carried Out:

  • Removal.
  • All wear parts were recreated by machining or re-casting.
  • Sleeves fitted to pump housings to maintain orginal clearances.
  • Re-installation.

Pumps delivered to AxFlow


24" Pump Before Refurbishment


Impeller awaiting removal from shaft

Unit 9a, Fieldhouse Business Park, Old Fieldhouse Lane, Huddersfield, HD2 1FA