DK 119

Single-acting seal consisting of an energized collar with a metal spring that maintains the circular geometry of the collar around its entire perimeter, both inside and outside. The sealing lip has a protrusion on the inside that holds the spring in place. At low pressure, the force of the metal spring provides the seal closure while, as the pressure increases, the collar is energized by the fluid pressure itself.
- U-shaped, V-shaped or helical springs.
- Part free of Stick-slip effect.
- Increased extrusion resistance due to heel extension.
Profile recommended for dynamic services in contact with chemically aggressive fluids or high temperature applications.