Filler Assembly for a Valve

A filler assembly for a valve, with the valve including a body, a cap mounted to a top portion of the body and having an axial hole, and a valve rod extending through the axial hole of the cap, with the filler assembly adapted to be mounted in the axial hole of the cap, with the filler assembly adapted to seal a gap between the valve rod and an inner periphery of the axial hole, with the filler assembly comprising:

• at least one first filler including upper and lower faces spaced from each other in a longitudinal direction, with a first through-hole extending from the upper face through the lower face of the at least one first filler, with the valve rod adapted to extend through the first through-hole;
• and
• at least one second filler including top and bottom faces spaced from each other in the longitudinal direction, with a second through-hole extending from the top face through the bottom face of the at least one second filler, with the valve rod adapted to extend through the second through-hole, with the at least one second filler and the at least one first filler stacked upon each other and including two mutually facing and mutually abutting faces comprised of one of the upper and lower faces of the at least one first filler and one of the top and bottom faces of the at least one second filler, with at least one of the two mutually facing and mutually abutting faces being an arcuate or slant face at a non-parallel angle to a radial direction perpendicular to the longitudinal direction,
• wherein if one of the at least one first filler and the at least one second filler is subjected to a pressing force in the longitudinal direction, at least one of the at least one first filler and the at least one second filler is moved in the radial direction to press against an outer periphery of the valve rod.