Sealing Solutions

A computer-generated axial view of a metal comma seal

Metal Comma Seals
Advanced Axial Shaft and Bore Seals

Comma axial seals used for shaft sealing and bore sealing are a further development of the axial C-Seal. The elastic recovery in radial direction is still limited, yet the leakage over the outer diameter in the case of a Comma seal is well controlled by the seating load generated by the compression of the ring part of the design.

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Silver, gold or copper plating enhances tightness performance and lowers friction during assembly and operation.

 

They are typically used in valves, semi-dynamic applications, connectors and in areas that need rod seals and piston seals.

Standard Specifications
Materials

Inconel x-750, 718, 625, SS, Haynes (other materials are available on request)

Used in

Slow dynamic applications & provides better control of the seating load

Temperature

-250 to +1100°C

(-423 to +2000°F)

Pressure

High vacuum to 5500 bar (79770 psi, 550 MPa) with support

Max Speed

Very low

Dimensions
Diameter: < 20 mm (0.750")
Cross-section: 1.57  to 4.78 mm
Minimum Tolerances: -/+0.05 mm

Is this Component PFAS-Free*?

By its nature, this component is PFAS-Free*.

Contact our engineers to learn more and start the discussion on how we can support you to meet the requirements of your application.

* PFAS-Free here means we do not intentionally add PFAS material in the product, but does not exclude the possibility of traces, as these materials are common in the environment.

Omniseal Solutions can help you with your project

Design engineering

A team of expert designers

Manufacturing

Customized solutions & materials to suit your projects

Space Satellite

Expert of precision seals

Omniseal Solutions can help you with your project

Seal Function & Motion

A cross section of a metal comma seal

Mating Surface Finish

Along with having an excellent surface finish, it is also important that the mating surface has a sufficient hardness. For high abrasive dynamic applications, a hardness higher than 60 HRC is recommended.

A selection of products from ASE group

Design

Our Comma seal design is developed to seal better than a typical axial C-Seal. It also allows a better control of the seating load and hence a better seal performance. 

Industry Case Studies

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