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Low operating torque provided by specially designed RTFE seats. Notches on
the outside diameter equalize pressure on both sides of the upstream seat. |
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Safety is ensured by anti-blowout stem design. |
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Reliable stem seal results from superior stem packing arrangement with RTFE
thrust washer as a primary seal and secondary adjustable stem seal of
flexible graphite. |
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Automatic compensation for stem seal wear with live-loaded stem seal. 2000 psig
in all sizes using RTFE seats. |
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Body leakage virtually eliminated with unibody design. |
