API Piping Plans

The API Seal Plans elaborated in this section are as defined by API 682 4th edition / API 610 10th edition.

These are standardized flushing piping arrangements that are widely used in the industry. Customer specific variants of these plans are possible.

API Piping plans help to ensure good conditions for mechanical seal operation as well as improving safety and pump reliability

Please contact AESSEAL Systems Division for further details. Tel: +44 (0)28 9266 9966 Email: systems@aesseal.com For more information, and a video demonstrating the piping plan in operation, select a plan below

API Plan 62 - Secondary Flush

An external fluid stream is brought to atmospheric side of the seal faces using quench and drain connections.

API Plan 65A - Containment Seal

Leakage from seal faces is directed to a liquid collection system. A vessel with a high level alarm is provided for detection of excess leakage.

API Plan 65B - Secondary Flush

Leakage from seal faces is directed to a liquid collection system. A vessel with a high level alarm is provided for detection of cumulative leakage.

API Plan 66A - Atmosphere

Throttle bushing in seal gland restricts seal leakage in event of seal failure. Pressure increase is detected by a pressure transmitter.

Plan 66B - Atmosphere

Orifice plugs in drain port restricts seal leakage in event of seal failure. Pressure increase detected by pressure transmitter.

API Plan 71 - Containment Seal

Plugged connections for future provision to supply a buffer gas to a dual containment seal.

API Plan 72 - Gas Seal

Buffer gas is passed through the containment seal chamber to sweep inner seal leakage away from outer seal to a collection system and / or dilute the leakage.

contact