FLEXIBLE SEALS FOR PROCESS CONTROL VALVES

摘要

Flexible seals for process control valves are disclosed. An example discl osed seal includes a seal for use with a butterfly valve. The example seal i ncludes a substantially flexible ring-shaped carrier (408) configured to be fixed within the butterfly valve and to surround a flow control aperture the rein. Additionally, the seal includes a ring-shaped cartridge coupled to an inner diameter of the ring-shaped carrier. The cartridge includes a first po rtion (404) and a second portion (406) coupled to the first portion to defin e a circumferential opening to hold a seal ring (412).