Spring Energized Seals

Helical Spring Seals are sophisticated spring-energized seals, designed for superior sealing performance. These seals incorporate a helical spring — a coiled ribbon of thin sheet metal — encased within a robust polymer jacket. This unique design allows the helical spring to exert a constant load on the sealing surface, ensuring a tight seal under varying pressure and temperature conditions.


Helical spring's high load versus deflection range makes it ideal for static applications or slow dynamics, such as stem seals and cryogenic valves. Its ability to apply additional force is crucial to counteract thermal effects and ensure reliable performance. The consistent load applied by the helical spring allows the seal to adapt to minor surface irregularities, maintaining an optimal seal and preventing leakage.


Helical Spring Seals are particularly effective in cryogenic valves, in which they can withstand extremely low temperatures while maintaining a tight seal. They are also well-suited for stem seals, providing a secure fit with their high load capacity. 


Manufactured from high-performance materials such as PTFE (Teflon), UHMWPE, and PEEK, Helical Spring Seals offer exceptional durability and resistance to chemical attack. PTFE is particularly effective in aggressive environments due to its low friction and chemical resistance, while UHMWPE provides excellent wear resistance, and PEEK offers superior mechanical strength for high-pressure and high-temperature applications. 


The versatility and robustness of Helical Spring Seals make them indispensable in various industrial settings. Whether used in cryogenic applications, high-pressure environments, or slow reciprocating systems, these seals deliver consistent, long-lasting performance, making them a key component in modern industrial applications.

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What you'll get out of these product modules

Our product modules offer an in-depth step-by-step guide to help make choosing and ordering the right product for your project easy.

With every product module you’ll receive the following:

  • Introduction to the product and a typical range of applications including temperature, pressure, velocity and media.
  • Detailed ordering examples and product illustrations.
  • Chart of standard seal materials including eclipse material code, description, color and applications.
  • Chart of standard part numbers including part number, rod Ø, groove Ø, groove width and o-ring dash size.
  • Hardware details including a cross section series, min rod ø for solid gland installation, r radius (max) and c lead-in chamfer (min).
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Why Choose Eclipse?

We offer custom solutions to a wide variety of seal needs that span various industries, from aerospace to automotive to mountain bike design.

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Quality Products

Eclipse was the first supplier to offer a full range of materials that meet the latest SAE spec AMS3678, which requires a high degree of testing and certification to meet the needs of our most discriminating customers.

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Fast Turnaround

We understand your time is valuable. That’s why we work to get your product designed and delivered fast, eliminating downtime and saving you money.

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Competitive Pricing

We stay ahead of the game with the best prices for the best quality of product in the industry.

Why Choose Eclipse?

Eclipse was founded under the premise that if we could solve enough of our customers’ problems they would continue to come back to us for solutions regardless of the type of products we offered.


Eclipse has evolved to produce standard product o-rings for a wide range of industries including Hydraulics, Pneumatics, Energy Production, Aerospace as well as Pharmaceutical and Food Handling. Instituting ISO9001/AS9100 quality system in 2015 allowed Eclipse to become a top tier supplier.


Today, Eclipse can support our smaller customers that require only a few seals a year to those needing in the 100’s of thousands. We continue to retain a quality product and are able to deliver consistently on time. Our customers continue to bring us challenging projects that allow our team to do what we do best, problem solving.

Project Request Form

"We started Eclipse with the premise that if we could solve enough of our customers problems they would continue to come back to us for solutions regardless of the type of products we offered."

Engineers

What Can We Help You With?

Start a project request form and give us the specifics of your project. Our team will review and be in touch with you shortly!

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