mechanical seal flushing plan API 32 • Difference of API plan 32 with other single seal flushing plan # API Plan 32 help maintain the vapor pressure margin# Compared to other single seal flushing plans, provides complete and clean flushing# Effectively removes solids from the flush and seal chambers# Flush is always supplied at a pressure higher than the seal chamber pressure# Use of plan API 32 in following application Liquids containing contaminants or impurities # polymerizing or oxidizing media # liquids with inadequate lubrication characteristics# High temperature applications.