Well gate valve greasing tool and method of use

摘要

A grease tool lubricates a valve having an actuator assembly for moving a valve element of the valve. The tool has a housing with a piston carried in a bore. The housing is open for inserting and sealing a portion of the actuator assembly into the bore. A fill port in the housing allows grease to be introduced into the bore. A piston rod joins the piston and has external threads engaging internal threads of the housing, so that rotating the piston rod causes the piston to move axially. A lever is mounted to the housing for imparting rotation to the housing. A lock pin extends through a side wall of the housing to engage the actuator assembly to cause the actuator assembly to rotate in unison with the housing.

主权项

1. An apparatus for lubricating a valve having an actuator assembly that moves a valve element when rotated, the actuator assembly having a grease injection passage, the apparatus comprising:
a housing having first and second ends and a cylindrical bore with an axis; a piston carried in the bore for axial movement relative to the housing; the second end of the housing being open for inserting a portion of the actuator assembly into the bore; a seal in the bore adjacent the second end of the housing for sealing to the portion of the actuator assembly to define a fluid injection chamber between the piston and the actuator assembly in fluid communication with the grease passage; a fill port in a side wall of the housing for introducing a fluid into the fluid injection chamber; a piston rod joining the piston and protruding from the first end of the housing, so that axially moving the piston rod causes the piston to move in an axial direction relative to the housing to force the fluid from the fluid injection chamber through the grease injection passage; a lock member mounted to the housing for engaging the portion of the actuator assembly to cause the portion of the actuator assembly to rotate in unison with the housing in first and second directions when the housing is rotated in first and second directions; and drive means on the housing for imparting torque to the housing to rotate the housing and the portion of the actuator assembly in unison in the first and second directions, wherein the drive means comprises a lever extending laterally from the housing for imparting rotation to the housing.