Omniseal® Spring-Energized Seals

Raco Seal
Omniseal®
RACO® Spring-Energized Seals

RACO® polymer seals have a U-shaped spring design and are used in extreme face sealing conditions, including cryogenic fluids and high vacuum. This sealing solution features a Fluoroloy® jacket energized by a corrosion resistant, heavy duty/high load RACO® spring that provides a very high spring force along the sealing lip.  

See More

These seals are deeply rooted in history, being created by a sealing pioneer to solve cryogenic issues in the first space missions. Watch the Omniseal® origin story or read about its history to see this seal's critical role.

 

Other typical precision applications include: Space seals for propulsion systems and Energy custom seals for LNG loading arm swivels.

Download Omniseal® Spring-Energized Seals Handbook
Download Omniseal® Spring-Energized Seals Handbook
Standard Specifications
Materials

Polymer jacket

U-shaped spring with uninterrupted contact

Used in

Extreme face sealing conditions, including cryogenic fluids and high vacuum.

Temperature

-250°C to +200°C (-418°F to +662°F)

Pressure

UHV to 100 MPa

Max speed

1 m/s

Clamping load

2 N/mm

Dimensions

Face Diameter / Radial Diameter: 15 to 3000 mm / 15 to 3000 mm 
Cross-section: 1.4 to 12.7 mm
Minimum Tolerances: +/- 20 μm

Omniseal Solutions can help you with your project

Industry

A team of expert designers

Manufacturing

Customized solutions & materials to suit your projects

Extreme Applications

Expert of precision seals

Omniseal Solutions can help you with your project

Seal Function & Motion

Dynamic-Static-Seal-Function

Static & Dynamic Applications

There are two basic types of sealing applications: static and dynamic, in which at least two hardware surfaces come in contact with one another.

 

In static applications, there is essentially no relative motion between the hardware surfaces. A typical example may be flanges that are bolted together. Omniseal® Solutions offers mostly face seals in such applications.

 

In dynamic applications, at least one surface is in motion relative to the other. A typical example is a hydraulic cylinder with shaft and bore. Further, there are two directions of motion in dynamic applications: reciprocating or linear motion, and rotary (including oscillating) motion. We offer mostly radial seals (rod seals and piston seals) in such applications. Occasionally, the application may be a combination of both static and dynamic. For these more complex cases, you can contact our team of experts.

Face-Radial-Seal

Radial & Face Sealing

Based on the hardware configuration and location of seal glands, sealing can be either radial or axial (face sealing). Radial sealing has glands that compress seals in a radial direction. Male glands are machined in the shaft, whereas female glands are machined in the bore. Radial sealing is usually, but not always, dynamic.

 

We also offer rod seals and piston seals for these applications. Axial sealing has glands that compress seals parallel to the axis of the seal. Glands are machined on the face of the hardware. Axial sealing is usually, but not always, static. Omniseal® Solutions offers inside and outside face seals in such applications..

Omniseal® Spring energized Seal Installation

How to successfully install a spring-energized seal

Industry Case Studies

Take a closer look at case studies that detail this spring-energized seal's high performance.