
NSEN Metal to metal seal Bi-directional Triple offset butterfly valve adopts the structure of ââ¬ÅMetal To Metal Seat ringââ¬, i.e. valveââ¬â¢s sealing ring of disc/seat are all metal with hard faced treatment. The solid metal sealing structure could eliminate the problem of of leakage and unstable sealing performance caused by U-type seat or L-type seat. Besides, our specially sealing design could allow the valve operate in differential pressure without reducing of pipe pressure.
â⬢ Triple offset geometry
â⬢ Integral metal seal ring sealing
â⬢ Zero Leakage for both way
â⬢ Anti-blow out shaft
â⬢ Fire safe design to API607
â⬢ Replaceable Seat & Disc Sealing
â⬢ 0°-90°control, no jump area
â⬢ Friction free
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