S-Seals
Performance Sealing for High Pressure High Temperature (HPHT) Oil & Gas Applications
Performance Seals supplies S-Seals for high-pressure sealing applications where extrusion resistance, stability, and reliability are critical. S-Seals are commonly used in oil and gas equipment, valves, connectors, and other demanding sealing environments.
What Are S-Seals?
S-Seals are engineered sealing elements designed primarily for high-pressure applications. Their design incorporates anti-extrusion support on both sides of the sealing element, helping maintain seal integrity and reduce the risk of extrusion in harsh service conditions.
They are especially valuable in applications with:
- High pressure
- Large extrusion gaps
- Critical sealing requirements where failure is not an option
Key Takeaways
- Designed for high-pressure static and dynamic applications
- Common in oil & gas, wellhead, valve, and connector equipment
- Help resist extrusion in large clearance gaps
- One-piece design can simplify installation compared to multi-piece seal assemblies
Materials
S-Seals are available in material combinations designed for high-pressure and critical-service applications. Selection depends on pressure, temperature, media, and certification requirements.
Elastomers
Common options include:
- HNBR for strength and sour gas resistance
- FKM for high temperature and chemical resistance
These materials are often qualified to industry standards such as API, ISO, NORSOK, and NACE.
Garter Springs (Anti-Extrusion Support)
Integrated garter springs on both sides of the seal help prevent extrusion and allow performance in larger clearance gaps.
Available materials include:
- Stainless steel
- Inconel®
- PEEK
- Coated spring options
Performance Seals can help customers evaluate these factors when identifying the right solution.
Common Applications
- Wellheads
- Valves
- Connectors
- Downhole tools
- Oil and gas equipment
- High-pressure static sealing systems
Why Performance Seals
At Performance Seals, we understand that seal selection impacts more than just one component. In high-pressure applications, the right sealing solution plays a critical role in system integrity, reliability, and overall performance.
Customers rely on us for responsive support, practical product guidance, and help identifying the right solution for demanding service conditions. Whether you are replacing an existing seal or evaluating options for a new design, our team can help you move faster with confidence.