Why energising springs matter in sealing applications
A seal is only as good as the spring that energises it. In valves, actuators and sealing systems, it’s the spring that determines how effectively the seal maintains contact, compensates for wear, and performs under pressure.
But how do you choose the right one from all of the different spring types and materials? Especially when you’re talking critical applications like hydrogen systems or subsea valves?
Check out our Clifford Springs top tips for optimising seal performance:
Matching the spring type to the application
- Canted coil springs provide a near-constant load – ideal for dynamic or fluctuating conditions
- Helical springs deliver high initial force – perfect for static seals in valves and actuators
- Garter springs offer even, radial pressure – maintaining secure seals in rotary systems
- Continuous top rail springs give full contact sealing force in high-load, high-pressure environments
Understanding different load characteristics is critical to long-term seal performance.
Choosing the right material for the environment.
Spring material has a significant impact on sealing reliability, particularly in aggressive or high risk environments. Using the right alloy is important.
- Inconel®: High-temperature, high-strength performance
- Monel®: Non-magnetic. Seawater and chemical resistance
- Hastelloy®: Superior acid and corrosion resistance
- Elgiloy®/Phynox®: excellent fatigue resistance, longevity and cryogenic applications
- PEEK™: A non-metallic solution for chemical or weight-sensitive applications.
It’s important to understand temperature, corrosion and fatigue factors to know which alloy will perform best.
Understanding the load-deflection curve
Sealing pressure and lifespan is affected when forces change under compression. Creating prototypes to test and assess a spring’s load-deflection behaviour means we can help clients fine tune geometry and load profiles before we go into full production.
Why early collaboration improves seal performance
We regularly collaborate with engineers and designers, which means they can take advantage of our knowledge and expertise to ensure that a spring’s geometry, material and force profile align with their performance targets.
Ultimately, a well-optimised spring means a reliable seal and consistent performance.
Let us help you achieve that.
Get in touch today.https://www.cliffordsprings.com/contact-us/