Seal Support Systems

AESSEAL® offers a wide range of innovative and modular seal support systems to complement its mechanical seal designs.

We believe we are the only seal auxiliary system supplier to deliver CE certified full assemblies without the use of third-party sources. We manufacture the systems at the AESSEAL Global Technology Centre, which is certified to Module D, B1 and H1 – H1 being the highest level of PED certification.

All of our systems comply with:

  • ASME VIII Div.1, 2007, 2008a (welded to ASME IX)
  • PED 2014/68/EU
  • GOST

Reliability Enhancement

Research has proven that the biggest mechanical preventative of mechanical seal failure is the use of effective Seal Support Systems.

This means that no matter how well designed your mechanical seal or bearing systems are, without a reliable Seal Support System there is still the possibility of your mechanical seal failing. The innovative and reliable Seal Support System Range at AESSEAL® gives customers the confidence to remove this root cause of mechanical seal failure.


Use the Seal Support navigation menu to filter through the product range, or take a look at some of our featured products below.


For a quick view of all products, use the > Product index

Leakage Detection Unit (API-Plan 75, 76)


Leakage Detection Unit (API-Plan 75, 76)

In API Plan 75 & 76 arrangements, vapour leakage from the inboard seal of a dual containment seal, either contacting or non-contacting design, is directed to a vapour recovery system via a vent connection.

Leakage Detection Vessel (API Plan 65)


Leakage Detection Vessel (API Plan 65)

In API Plan 65 arrangements, leakage from the seal faces is collected via a drain port and directed to a liquid-collections system via a vessel equipped with a high-level alarm.

API Plan 53B System

Plan 53B system

The AESSEAL® Seal Auxiliary Systems Division has established a pioneering method of developing API Plan 53B Systems.

Plan 53B systems have been viewed as an “engineering challenge” around the world, often with long lead times. The innovative modular concept permits 12 modular options to be applied to create an API 53B System for any application.

API Plan 54 Forced Oil Circulation System


PUMPPAC - API Plan 54 Forced Oil Circulation System

AESSEAL® PUMPPAC™ Systems are used when the heat dissipation from a thermosyphon system is not sufficient for the application.

API Plan 54 forced circulation system


Oil PUMPPAC System

The PP/SOU (Special Oil Unit) utilizes the same operating principle as the standard AESSEAL® PP/O1 PUMPPAC.

Python Heat Exchanger


Advanced Natural Convection Air Cooling

The AESSEAL® Python is an advanced air cooled heat exchanger for cooling mechanical seal barrier / buffer / flush fluids.

SEALTECTA - Thermal Relief Valve


Thermal Relief Valve

Designed to minimize the use of water in quench to drain applications.