STAVANGER, Norway– Trelleborg Sealing Solutions will unveil its new “next generation” seal – the Multi-Contact Turcon Variseal – at ONS 2014 in Stavanger, Norway, Aug. 25-28.
The company says the Multi-Contact Turcon Variseal has been developed to replace multiple chevron seals or V-stack type products in subsea valve stems requiring a high-integrity sealing capability. It includes a series of single-acting spring-energized seals housed within a U-shaped Turcon polytetrafluoroethylene (PTFE) based material seal profile.
The seal is designed to provide integrated redundancy, helping to extend the flex life of seals in high-pressure applications while providing better performance and lower operator costs. With the addition of anti-extrusion devices, the seal can withstand pressures of up to 207 MPa/ 30,000 psi.
Stuart Moares, product line director at Trelleborg Sealing Solutions, said: “We believe this innovative product represents the next generation in sealing. The unique single-piece design significantly improves sealing integrity and leak tightness in high-pressure applications by providing higher contact force across multiple seal hardware interfaces.
“The Multi-Contact Turcon Variseal is immune to stick-slip after long periods of inactivity. This avoids seal damage that can lead to valve leakage, which can cause environmental contamination and expensive asset recovery along with the associated overhaul costs and production disruption.”
The company also will showcase a number of subsea innovations, including Turcon Roto Glyd Ring II. The one-piece seal contributes to enhanced rotary performance in offshore oil and gas equipment such as casing running tools, downhole tools, top drive units, and rotary swivels.
Trelleborg is exhibiting at stand 125 in Hall K.