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Cryogenic Butterfly Valve, Long Neck

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Butterfly valve for cold-box and LNG isolation. The long neck puts the stem seal and the gear operator above the cold zone, and a drip disc keeps condensation from running down into the insulation. Body in CF8M with a laminated or metal seat depending on the required tightness class; wafer, lugged or flanged ends.

General Specifications

Size RangeNPS 2" – 48"
Pressure RatingClass 150 / 600
Temperature Range−46 °C, −101 °C, −196 °C
Design StandardAPI 609 / BS 6364
Body MaterialCF8M / CF3M
End ConnectionWafer, lug, RF, BW (ASME B16.5 / B16.25)
NeckLong neck with drip disc
SeatLaminated or metal seat
MediaLNG, liquid nitrogen, ethylene

Applications

LNG terminals Cold boxes Air separation LNG fuelling

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Cryogenic Butterfly Valve, Long Neck — 1

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