The video below provides detailed, step-by-step training on replacing the seat and stem seals on an EBRO Armaturen "soft-seated" butterfly valve.
This style of valve is used for both on-off applications and as throttling control valves. Their design uses an "interference fit", meaning the metal disk is forced in contact with the soft rubber seat to provide a leak-tight seal. Because of this physical interaction, it is normal to replace the seats after a reasonable time in service.
For more information on EBRO Armaturen valves, contact:
22 Beta Ct.
San Ramon, CA 94583
Phone: 925-208-4250
Fax: 925-208-4251
Email: contactus@cti-ct.com