James Walker Develops Elastomer For Sealing Tasks

James Walker has launched the first of its next-generation elastomers that is designed to improve elastomer sealing performance for the oil and gas industry. While testing to establish the limits of the new polymer architecture still ongoing, the FR68/90 elastomer has already exceeded Norsok compliance specifications, achieving a perfect test result not only at 8.4mm section at 100C, but also at 5.33mm section at an elevated temperature of 150C, according to James Walker.

FR68/90 retains flexibility for ease of fitting and is claimed to offer excellent sealing properties with compression set figures of eight per cent after 24 hours at +175C and 10 per cent after 24 hours at +200C. With its Amine and H2S resistance, plus an operational temperature capability of -30C to +200C, FR68/90 could extend the use of elastomeric materials to larger sections than previously possible, with no loss of RGD resistance. This could eliminate the need for complex and costly re-engineering of components to accept physically larger solutions such as spring-energised PTFE seals.

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