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This invention relates to high-pressure, female couplings for sub-sea use in oil and gas exploration and production applications. An annular cavity in the wall of the probe seal is open to the outer surface of the (generally) ring-shaped probe seal. Hydraulic fluid, under pressure, enters the annular cavity through the opening and exerts a radial force on sealing elements. The annular cavity has an L-shaped or a T-shaped cross-section. This provides additional 'energisation' to the seal. Relatively stiff seal materials, such as PEEK, also may be used.
๐ SIMILAR VOLUMES
## Dynamic sealing 51 (BB)6 was its reinforcement contribution. Although the fibre itself has a high tensile strength, this strength can only be exploited in a gasket when a good attachment to the rubber matrix is achieved. To improve this, RF 51(BB)6 has been surface modified. Combined with acce