JST makes custom and standard PEEK back-up rings.

The PEEK back-up ring is made of polyetheretherketone (PEEK) material.

PEEK is a high-performance thermoplastic with exceptional properties. It has high temperature resistance, capable of withstanding extreme temperatures without significant degradation. It also exhibits excellent mechanical strength, providing durability and reliability. PEEK is chemically resistant to a wide range of substances, making it suitable for use in harsh environments. Additionally, it has low friction properties and good wear resistance.

The choice of PEEK for the back-up ring ensures reliable performance in various applications, such as in hydraulic systems and sealing applications. It can help prevent extrusion of elastomeric seals under high pressure, enhancing the overall sealing integrity and longevity of the system.

Industries such as oil and gas require demanding working conditions. PEEK back-up rings can be used in multiple down-hole drilling applications where pressures can be up to 5,000 psi and temperatures often approach 350°F.

PEEK is an optimum performer in these situations. It can function at the same level as a metallic back-up ring, without the risk of metal-to-metal contact which could potentially gall the hardware.

PEEK BACK-UP RINGS MATERIAL

Virgin PEEK

Engineered thermoplastic.

Is approved for the use of applications in contact with foodstuff.

Excellent chemical resistance.

Very low moisture absorption.

Good wear and abrasion resistance.

Glass filled PEEK

PEEK with the addition of glass fibers.

Glass fibers reduce the expansion rate and increase the flexural modulus.

It has good tribological characteristics and is recommended for precision parts, where close tolerances are required.

Carbon filled PEEK

PEEK with the addition of Carbon fiber.

It has excellent physical and chemical properties.

It has good tribological characteristics and is recommended for precision parts, where close tolerances are required.

Size:

Diameter:φ3-φ500mm

PEEK backup ring's Dimension can be customized.