CONSIDER THE TOTAL COST

摘要

It is a best practice to consider the total cost of ownership or the life cycle cost of a pump. The major components included in the cost of ownership are the initial cost, installation cost, operating cost and maintenance cost. One sub-segment of the life cycle cost is associated with the cost of sealing the pump. This white paper will identify the costs associated with sealing a pump, different sealing methods, and will compare their respective costs during the pump's life cycle. A sealing method is required for most pumps except for magnetically driven pumps and canned rotor pumps. A sealing method must be incorporated to seal between the rotating shaft and the static stuffing box cover in order to prevent pressurized liquid from escaping.