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Operators of pipeline compressor expect their packing to deliver low leakage rates as well as long run times. Over the years, several packing arrangements and technologies have been proposed and/or utilized to achieve these goals. One particular arrangement that has been considered is the use of a side loaded seal ring on the pressure side of the vent in the packing case. The idea behind this is that the sealing capabilities of this ring should effectively restrict gas from leaking out of the packing vent. While this arrangement may in fact reduce packing leakage for a time, field experience has demonstrated that itmay lead to other packing problems. Typically, side-loaded rings are designed to seal at low pressures.This makes them effective vent rings, where they seal between atmosphere and the packing vent.However, these seals were not intended to be used under high pressure. Locating a side-loaded ring on the pressure side of the vent can have a detrimental effect on the packing material and reduce the life of the ring set.
Your Price $195.00
List Price $195.00