| 摘要 |
For servicing grease filled valves, wherein the valve has a cavity with packing grease therein, an apparatus is disclosed which in its preferred and illustrated embodiment includes a first detachable fitting enabling injection of packing grease into the cavity. A second and companion detachable fitting is also disclosed which utilizes an elongate stinger rod driven by a rotatable stem to upset a check valve drain plug wherein the second fitting has an outlet passage extending axially therethrough and connected through a lateral port.
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