API6D trunnion mounted ball valve lip seals
JST FHR series is made of a helical wound spring and a polymer jacket, which is mainly used for rod.Spring energized seal:
The FHC seal is made of a helical wound spring and a polymer jacket, which is mainly used as a Flange outer face seal.
The polymer jacket's material includes PTFE,TFM, PCTFE, etc.
The helical wound spring's material includes Stainless Steel, Elgiloy,Hast Alloy,etc.
When the pressure is more than 900LBS, an anti-extrusion ring is required.
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Advantages:
1. Material compound passed API 6A FF/HH Immersion Testing;
2. High load helical wound spring with small deflection range;
3. NACE approved energizers available for oil and gas use.
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Working Conditions
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Temperature range
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Pressure
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Medium
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-50~200℃
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150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
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LNG, Low temperature ethylene
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API 6D Flange outer face seal selection table
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Groove DWG:
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Temperature Rating
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JST Series
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Spring
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0~900（LBS)
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900~2500(LBS)
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G=H
Standard Groove Cross Section G=H
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L
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(-50℃~200℃)
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FHC
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Natural color, Elgiloy
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3.1
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4.8
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4.7
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7.1
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6.1
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9.5
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6.9
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10
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