Restore efficiency and prevent contamination.
High-performance labyrinth air seals and carbon ring oil seals designed to maintain critical tolerances, recover interstage leakage, and prevent oil carryover in centrifugal compressors.
Problems you might be facing
Declining discharge pressure
Worn air labyrinth seals allow interstage leakage — your compressor works harder but can't hold design pressure.
Oil contamination in air stream
Worn or damaged oil seals fail to hold back bearing oil, allowing it to contaminate the compressed air system.
No OEM replacement available
Your compressor model is 25+ years old and the OEM discontinued the seal. No off-the-shelf option exists.
Capabilities
Labyrinth seals
Straight-through and stepped labyrinth designs with teeth-on-rotor or teeth-on-stator configurations.
Carbon ring oil seals
Precision-machined carbon rings that effectively seal bearing oil from the aerodynamic sections.
Eye seals
Impeller eye seals with precision-machined bores — controlling leakage from stage discharge back to suction.
Interstage & Balance piston seals
Diaphragm-mounted interstage seals and balance drum labyrinth seals managing axial thrust.
Abradable coatings
Honeycomb and aluminium-silicon abradable coatings for rub-tolerant seal applications.
Reverse engineering
3D scan worn seals to manufacture replacements with original design clearances restored.
Why customers choose us
- Clearances held to ±0.0005" on critical sealing surfaces.
- Material options: aluminium, bronze, PEEK, stainless steel, abradable coatings, and carbon.
- Typical lead time: 4–6 weeks for custom seals.
- Every seal dimensional-inspected and documented before shipping.
Frequently asked questions
How do I know if my labyrinth seals need replacement?+
Key symptoms: declining discharge pressure, increased motor amps at the same load, higher bearing temperatures. A performance test or vibration survey can confirm seal condition.
How do I fix oil carryover?+
Oil carryover is typically caused by worn carbon ring oil seals, excessive bearing clearances, or issues with the seal air buffer system. Replacing the seals usually resolves it.
Can you match my existing seal material?+
Yes. We perform material analysis on your worn seal and match the alloy exactly — or recommend an upgrade if the original material wasn't optimal for the service.
What if I only have a worn or damaged sample?+
That's fine. We 3D-scan worn samples, add back the original design clearances, and manufacture to the as-new specification.