API Seal Plans, as defined by API 682 4th Edition and API 610 10th Edition, are standardised piping and seal support systems used to control the operating environment of mechanical seals. By managing temperature, pressure and fluid conditions, API piping plans help improve seal performance, extend equipment life and reduce unplanned downtime.

These mechanical seal support systems are typically grouped into two categories. Process fluid systems use the pumped media for seal flushing and cooling, while barrier and buffer fluid systems introduce an external fluid to provide enhanced lubrication, cooling and protection in more demanding applications.

Explore the full range of API seal plans below to understand how each piping plan works, its typical applications and the benefits it offers. Reliability Seals can support you in selecting the right API seal support system to improve pump reliability and overall system performance.