| 摘要 |
<p>A method for producing a fluid filled ring for use in a shaft sealing apparatus for attachment about a rotatable shaft for preventing leakage along the shaft, has a housing with a fixed end plate and a movable gland follower for defining a stuffing box about the shaft. The ring is produced by providing an elastomeric tube, filling same with a chilled fluid having the property of a substantial expanding in volume on reheating. The ends of the filled tube are closed and the fluid allowed to reach ambient temperature. Then the ends of the tube are welded and the clamps removed whereupon the fluid fills the entire volume of the produced ring. The advance in the art is in that no filling or vent valves are required in the process.</p> |
