Gland seal device of nickel alloy ball valve

The utility model discloses a gland seal device of nickel alloy ball valve, include valve rod and the gland of installing end coils outside the valve rod, its characterized in that: the gland for hollow gland in having, the convex boss of the intracavity oriented horizontal orientation of processing in this gland, the upper surface of this boss is followed and is up installed first sealing washer down in proper order, the upper bearing, blind nut and second sealing washer, and first sealing washer, the upper bearing, blind nut and second sealing washer are all installed between gland and valve rod, lower surface from the last retaining ring of down installing in proper order of this boss, third sealing washer and lower bearing, a back -up ring, third sealing washer and lower bearing are installed between gland and valve rod. The utility model discloses a gland seal device of nickel alloy ball valve who obtains, through adopting above -mentioned technical scheme, it is reasonable, corrosion -resistant and high -pressure to have a structural design, has guaranteed the performance and the processing performance of product.