Offshore staff
STAVANGER, Norway– Bal Seal Engineering Inc. has expanded its line of spring-energized seals to include large diameters – up to 120 in. inside diameter (ID) – for slow-speed rotary and reciprocating oil field applications.
The company says the one-piece, large diameter seals offer equipment designers and end users excellent resistance to wear, extrusion, and chemicals. The seals are energized with a Bal Seal Canted Coil Spring, which promotes even wear and prolongs service life.
The low-friction, large diameter seals are available in a variety of materials, including polymer-filled PTFE, graphite/glass-filled PTFE and glass-fiber-reinforced PTFE with lubricant, all with an operating range of -450° to +500°F (-268° to +260°C). Graphite-filled PTFE is available with an operating range of -450° to +475°F (+246°C). The PTFE-based seals are available in sizes up to 120 in. ID; and thermoplastics, which can be incorporated into backup designs, are available in sizes up to 94 in. ID.
The company says it added the large diameters to its offering in answer to a growing demand for high-performance sealing options in offshore mooring systems, rotary steerables, swivel stacks and other equipment, where the integrity of the fluid path is constantly threatened by harsh conditions.
Bal Seal is exhibiting at booth #J1046.
