Breakthrough wear rate reductions
Load on the seal reduced by 99.8% at 250 bars outlet pressure
Proof of concept
Running oil free at 9:90 bars & 2600 rpm - After 500 hrs the piston ring was still in perfect condition
Head to head with standard seals
We ran a standard EPDM O-ring at 250 bar for hours with pressure balancing - the same O-ring was shred into slices at 80 bar after a few minutes without balancing


Current sealing technology is restricted to whatever speed, pressure and temperature seals can withstand. We are able to push those limits, paving the way for machines that are faster, stronger, smaller and more durable, culminating in a more eco-friendly solution.

A trade-off has to be made between seal tightness for lowest possible leakage, and seal clearance for less friction. The pressure on the seals make them twist and wring which induces friction and wear. The wear, and thereby the operational life of the seal, is directly proportional to the pressure differential over it. Lubricating the seal, choosing material wisely and adding extra seals can help, but it does not solve the problem.
The proprietary NextSeal™ technology balances the gas pressure on a seal with an equally large liquid pressure on the opposing side. The pressure is thereby neutralized on the seal without interfering with the functional pressure of the application. Consequently, the seal only separates two fluids of the same pressure which means drastically reduced leakage, reduced friction and more or less pressure independent operation without having to use lubricating oil.

Balanced Pressure – Better Performance

The proprierary NextSeal technology balances pressure locally over the seal between the moving parts in a machine. The seal is a critical component in machine performance. The local balancing is achieved through a liquid whose pressure automatically adjusts to the gas pressure throughout the cycle for each of the machine’s revolutions.

First page pressure

Reducing Methane Emissions

Using the NextSeal technology, calculations show us that in the US market alone, a reduction of 29 Megaton of Carbon dioxide equivalents per year of methane gas emitted to the atmosphere is possible. This amount equates to greenhouse gas emissions greater than half the carbon footprint of New York City.

Thereto, the savings would not only have environmental benefits. The gas savings could also be used to power a million households instead of being released straight out into the atmosphere.

(Figure reprinted with permission from: McKain, Kathryn, et al. “Methane emissions from natural gas infrastructure and use in the urban region of Boston, Massachusetts.” Proceedings of the National Academy of Sciences (2015): 201416261)


A pressure balanced seal makes oil lubrication unnecessary


Reduced friction facilitates higher velocities (RPM counts)


Higher mass flow facilitates 4-8 times smaller machinery


The NextSeal concept works just as well for 10 bar and 1000 bar applications


A “free” cooling circuit is provided by the NextSeal liquid