Retrofit to an air type seal for VGP compliance!

By Eric de Paauw

The Vessel General Permit (VGP) is still a hot topic. The VGP indicates that the specified vessels should use Environmental Acceptable Lubricants (EALs) unless this is deemed technical infeasible. Instead of using an EAL, it’s also possible to use an alternative seal design. These seal designs are often air/vacuum/void space seal types that collect any leakage into a drain tank.

Lagersmit offers two options to be in compliance with the VGP regulations:

Option 1: Comply with VGP by using EAL

Retrofit your current seal into a Supreme® seal executed with FKM EAL lip seals which are compatible with biodegradable oils. Since the VGP started to prescribe the use of EALs, Lagersmit started the development of a compound, which is chemically better resistant to EALs; The newly released FKM EAL compound is extremely resistant to the effects of hydrolyzed EAL when compared to other FKM compounds.

Simultaneously, Lagersmit has started testing its lip seal compounds with a number of EALs. The compatible ones can be found on

It’s also important to stay aware of the effects of your choice!

Read more in our blog “Environmentaly acceptable lubricants (EALs) or an air type seal? It’s up to you!”

Option 2: Comply with VGP by using our Supreme Ventus or Athmos system

The second option to be in compliance with the VGP regulations is to retrofit the AFT seal into our Supreme Ventus or Athmos seal. Both seals are high quality air type seals made by Lagersmit and are supported by a reliable service network with worldwide coverage. These sealing solutions will be fully geared to the current requirements of your application.

The biggest advantage of using the Supreme Ventus or Athmos seal is that the vessel operator is allowed to use mineral oils instead of costly EALs. Please find below all benefits of the Supreme Ventus and Supreme Athmos:

  • Zero-emissions of oil
  • Verified by DNV GL to be in line with EPA’s VGP requirements
  • 24/7 Condition Monitoring of the seal
  • Low Cost of Ownership
  • Durable self-learning system
  • No wear on liner and lip seals guaranteed during the first five years (ask for details)

Read all you need to know about the Supreme Ventus here.

What are the differences between the two sealing solutions?

How it works

The Supreme Ventus airtype seal guarantees zero oil-emissions, an absolute minimum of wear and enables you to check the condition of the seal. The seal uses a vacuum to dispose the leakage and has pressure compensation for every draught. This air flow decreases clogging in the drain pipe. The seal is self-learning and adapts to the amount of leakage.

Depth vessel
Varying depths

Designed for

Bulk and container carriers

How it works

The Supreme Athmos features a fail safe and Condition Monitoring option to deliver you optimal peace of mind. If the system fails, the seal will switch to its normal sealing mode. The drain tank captures the little oil that the seal uses and the tank indicates when it should be emptied. That way, the seals’ condition can be monitored at all times.

Depth vessel
Limited depth

Designed for

Inland water vessels
Cruise ships and yachts

More information

Contact me in case you want more information about retrofitting!

Read more about EAL & VGP!

About the author: Eric de Paauw

Eric has been working at Lagersmit since 2013 as an Account Manager. He is dedicated for several Supreme key accounts in the maritime market as well as the Liquidyne seals for the industry and the water market in the Benelux.