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Quick Answer: An OEM spring energized seal is a sealing element that combines a polymer jacket with an internal spring. The spring maintains lip load in low pressure, temperature cycling, rotary, reciprocating and static service. CORASEALS supplies OEM spring energized seals based on customer drawings, samples, materials, groove dimensions and operating conditions.
An OEM spring energized seal is designed for a specific original equipment application. The seal body is normally a machined polymer jacket. The jacket contains a spring energizer. The spring keeps the jacket lip in contact with the rod, bore or flange face. The spring function is useful when an O-ring or a simple lip seal may lose contact force.
The term OEM means the seal is supplied to equipment builders or as a dimensionally controlled replacement. CORASEALS does not quote only by a type code. We review the cross section, groove dimensions, material and operating conditions before offering a replacement or custom design.
For non-spring profiles, compare our machined seals and custom sealing components.
Jacket material selection depends on the fluid, operating temperature, friction requirement and hardware surface condition. Common jacket materials include:
| Component | Material Options | Common Selection Reason |
|---|---|---|
| Jacket | PTFE, filled PTFE, UHMWPE, PEEK | Chemical compatibility, friction control, wear resistance |
| Spring | Stainless steel, nickel alloy, cobalt based alloy | Corrosion resistance, temperature response, load retention |
| Backup ring | Metal or plastic depending on design | Groove support, extrusion resistance, installation control |
Do not select the jacket material by seal code alone. CORASEALS confirms the material grade and filler type against the actual fluid and operating temperature.
The spring energizer supplies the load that keeps the jacket lip in contact. Common spring materials include stainless steel, nickel alloy and cobalt based alloy. Spring material selection depends on temperature, fluid corrosion risk and the load response required by the seal profile.
Spring design varies. Some profiles use a canted coil spring. Other profiles use a helical spring or a cantilever spring. Each spring type has a different load response. The spring must match the jacket profile and groove design.
For aggressive chemical or high temperature service, the jacket and spring must be selected together. A chemical resistant jacket does not help if the spring material corrodes.
Equipment builders and maintenance teams use spring energized seals where a standard seal cannot keep controlled lip contact. Common application areas include:
OEM spring energized seals can be supplied as single pieces, prototype lots or production quantities. CORASEALS can work from a drawing, sample or measured dimensions.
To quote an OEM spring energized seal correctly, CORASEALS needs the seal geometry and the hardware conditions. Provide dimensions in mm or inches and identify the unit. Send the following information:
If you have a drawing or a failed seal sample, send a photo and the part number. CORASEALS can review the cross section and recommend a matching or custom design.
Equipment builders use spring energized seals for low pressure, temperature cycling, aggressive fluids and high wear conditions. The spring keeps the lip loaded even when system pressure drops. The polymer jacket can be selected for chemical compatibility and friction control. A custom machined profile can match a nonstandard groove without a large molded tooling program.
CORASEALS supports OEM programs by reviewing the groove design before production. The review covers the section, spring type, material and fitting condition. Drawing review reduces the risk of leakage caused by a code equivalent that does not match the original cross section.
When an OEM spring energized seal fails, the root cause is often the hardware or material condition. Check these items during a replacement:
If the failure repeats, send the failed seal and hardware details. CORASEALS can help review the seal profile and recommend a design change.
What is the difference between a spring energized seal and a standard O-ring?
An OEM spring energized seal uses a polymer jacket and an internal spring to maintain lip load. An O-ring depends on squeeze and system pressure. Spring energized seals are often used where an O-ring struggles with low pressure, temperature cycling, high wear or aggressive chemicals.
Can CORASEALS match an existing OEM spring energized seal?
Yes. Send the part number, drawing, sample or measured dimensions. We compare the cross section, jacket material, spring type and hardware. We do not promise interchange based only on a type code.
What materials are available for OEM spring energized seals?
Jacket materials include PTFE, filled PTFE, UHMWPE and PEEK. Spring materials include stainless steel, nickel alloy and cobalt based alloy. Material choice depends on the fluid, temperature and pressure conditions.
Can spring energized seals be used in rotary service?
Yes, when the seal profile, spring load, speed and shaft surface finish are designed for rotary service. Provide the shaft diameter, speed, surface finish, runout, pressure and temperature.
What information does CORASEALS need for a quotation?
Send the seal ID, OD, width, groove dimensions, rod or bore diameter, jacket material, spring material, temperature, pressure, media, speed and quantity. A drawing or sample photo improves the quotation accuracy.
Send your OEM spring energized seal inquiry to CORASEALS. Include the seal type, material, ID × OD × width, operating temperature, pressure, medium, shaft speed, drawing, sample photo and required quantity. Use the CORASEALS inquiry form or send the details directly to the contact shown on coraseals.com.
