alert icon

Internet Explorer 8 or 9 is not supported by this website. Please either update your version of Internet Explorer, or use a more up to date browser.

Hide Message hide icon
Swagelok Quebec Group

Your Authorized Swagelok Sales and Service Center

API Plan 41 Cooled Flush with Cyclone Separator

API Plan 41 is a cooled version of Plan 31. Solids are removed from the flush fluid by incorporating a cyclone separator. Flow is routed from the discharge side of the pump through the cyclone separator. Clean flush fluid leaving the separator is routed through a cooler before being returned to the seal chamber. Flush fluid containing solids is tubed back into the suction side of the pump. In order for Plan 41 to be effective, it is recommended that the specific gravity of the solids be twice the specific gravity of the flush fluid.

plan 41 


  • Removes solids from the flush fluid
  • Provides clean and cooled flush fluid to the seal chamber

See page 25 of the Mechanical Seal Support Systems Applications Guide for additional details.


Contact your local distributor