A seal assembly for use in a valve that maintains a seal during operational excursions of high temperature, such as during a fire. The seal assembly includes a eutectic material that retains an energizing element in place during normal conditions, which in turn keeps a secondary seal spaced axially away from a sealing position. During high temperature excursions, the eutectic material degrades and releases the energizing element. When released, the energizing element energizes a secondary seal that is in an annular space between a valve stem and valve housing.
https://app.acclaimip.com/pdf/vlayV-IE-XjbVrIyBwT5dLCHzZYsBe1mqLgwkr8/US20140138082A1
For more information or to license this innovation:
- Log In
to view the innovation's details
- Sign Up
with discount code "ECOS"
