Posted on April 23, 2025 by Dennis Errichiello, Midwest Regional Sales Manager
In fluid sealing applications, gasket selection plays a critical role in ensuring operational safety, process integrity, and cost efficiency. Whether during commissioning, maintenance, or field testing, using a gasket that reliably seals under varying conditions is essential.
SE-4000 by Gasket Resources Inc. is purpose-engineered for low to moderate pressure service, including hydrotesting—a vital procedure in oil & gas, chemical processing, and power generation. It combines performance and affordability, making it a dependable choice for both temporary and permanent use cases.
Why SE-4000 Excels in Hydrotesting Applications
Hydrotesting (hydrostatic testing) involves pressurizing systems with water or other fluids to verify leak resistance and structural integrity. Gaskets used in this process must deliver accuracy and repeatability—without introducing risk.
Key Advantages of SE-4000
- Resilience Under Pressure: Rated up to 750 psi, it maintains integrity throughout hydrotest conditions, ensuring consistent sealing performance.
- Fluid Compatibility: Performs reliably with water and common hydrotesting fluids, resisting swelling, chemical attack, and delamination.
- Cost-Efficient: SE-4000 offers high-value sealing at a fraction of premium material costs, ideal for temporary tests.
- Low Creep, High Recovery: With <35% creep relaxation and >40% recovery, it maintains sealing force—crucial for detecting micro-leaks during pressure tests.
Technical Specifications
The performance metrics below reflect SE-4000’s reliability across a range of operating conditions:
- Temperature Range: -100°F to 500°F
- Continuous Max Temperature: 425°F
- Operating Pressure: 750 psi
- Max Pressure: 1000 psi
- Compressibility: 7–17%
- Recovery: >40%
- Creep Relaxation: <35%
- Nitrogen Sealability: <1.0 cc/min (ASTM F2378)
These traits make SE-4000 a strong performer for systems operating within moderate pressure and temperature ranges.
Additional Applications
Beyond hydrotesting, SE-4000 is suitable for a range of low to moderate service conditions in industrial environments. Compatible with:
- Oils and Fuels
- Mild Acids and Alkalis
- Solvents
- Steam and Water
- Non-aggressive Process Media
It is ideal for utility systems, light-duty chemical processing, and general industrial maintenance.
A Practical, Reliable Gasket for Everyday Use
Choosing the right gasket doesn’t require overspending. SE-4000 delivers dependable sealing performance without over-engineering the application.
From hydrotesting to low-pressure utilities, SE-4000 offers a practical combination of value, reliability, and versatility.
Contact the Sealing Experts
For more information about SE-4000 or to discuss your specific application needs, contact: sales@durlon.com