Patent ID: 7048254

Claim:
A secondary packing gland apparatus, attachable to a valve assembly comprising an axial stem and a primary packing, said secondary packing gland apparatus comprising: a primary packing gland flange disposable around said stem, said primary packing gland flange defining therein a second packing chamber; secondary packing disposed within said second packing chamber; a secondary packing gland flange disposed around said stem, insertable into said second packing chamber, and movable axially in relation to said stem; first adjustable means, comprising at least one secondary packing bolt, for connecting said secondary packing gland flange to said primary packing gland flange; and second adjustable means, comprising at least one primary packing bolt separate from said secondary packing bolt, for connecting said primary packing gland flange to said valve assembly; wherein said secondary packing is compressible within said second packing chamber by said secondary packing gland flange, and said first means for connecting is adjustable to move said secondary packing gland flange axially to increase and decrease the compression of said secondary packing, and wherein further said primary packing is compressible within said valve assembly by said primary packing gland flange, and said second means for connecting is adjustable to move said primary packing gland flange axially to increase and decrease the compression of said primary packing, and wherein further said first adjustable connecting means and said second adjustable connecting means are adjustable independently of each other.