• Effective separation of water and lubricants
  • Highly corrosion resistant
  • Modular, Made-to-Measure
  • Available in split type

How it works

The Supreme Standard is suitable as a forward seal (STF) and an aft seal (STA) for shaft diameters from 116 to 1150 millimetres. The aft seal prevents water ingress to the stern tube and oil leakage to the outside environment. The forward seal prevents oil leakage from the stern tube to your engine room. The Supreme Standard is suitable for both new-build and retrofit applications.



Aft seal (STA)


Due to the modular design, you can customise your seal using a broad range of options. The most used options for the Supreme Standard are:

  • Hard metal liner coating
  • Hastelloy® C4 springs
  • Net cutters
  • Wire winders


Curious about all other options? Take a look at the overview for all possibilities!


Technical information

Curious about the technical specifications? Download the technical product information for drawings, cross sections and datasheets.



Vertom Bereederung

Committed stern tube seal supplier for the whole fleet

View reference

Briese Shipping BV

Complete set of stern tubes, bearings and seals

View reference


The Supreme Standard consists of high-quality bronze (aft seal) and cast iron (forward seal) housing parts and a stainless steel liner. The aft seal has two water-repellent and one oil-repellent rubber (NBR or FKM) lip seals. The forward seal consists of two oil-repellent lip seals, which are lubricated by a compact circulation tank.


Are our standard solutions not suitable for your application? Our engineers are more than happy to develop a custom-made sealing product!

Type and design approval

The Supreme Standard has been approved by globally recognised classification societies such as the American Bureau of Shipping (ABS), Bureau Veritas (BV), DNV GL and the Indian Register of Shipping. Look at the overview of all available type and design certificates.

Quotation request

Join hundreds of other shipping companies that rely on our sealing solutions. Send us your details and request a no-obligation quotation.

Request quotation


Do you want more information or specialist advice about the Supreme Standard seal? Contact one of our experts!

Vincent van der Heiden

Account Manager

General phone number