LUBRICATION SYSTEM FOR A GATE VALVE

摘要

The present invention provides method for providing lubrication to a gate sealing element located between first and second housing sections of a gate valve having a moveable gate, wherein the gate is moved by energizing an actuator. The method includes the steps of providing a lubricant for lubricating the gate sealing element, providing a lubricant passageway for supplying the lubricant to the gate sealing element, providing a moveable plunger element for moving the lubricant from the cartridge to the gate sealing element via the lubricant passageway, and moving the gate to move the plunger element to cause the lubricant to move from the cartridge to the gate sealing element.