Back-Up Rings

reduce the sealing gap between two components, protect the sealing element (e.g. an O-ring) and thus increase its service life. Depending on the application, we provide different shapes and materials.

Back-Up Rings

Back-up rings reduce the sealing gap between components and thus prevent damage to the seal due to gap extrusion. They are used together with O-rings as well as other sealing elements. Their use extends the service life of the seal. Back-up rings are used for higher pressures, pulsating pressures or larger sealing gaps. They are also used in the case of vibrations and higher speeds as well as higher operating temperatures and in cyclical applications.

Back-up rings can be manufactured serially in various profile geometries in PTFE, POM, PA and, for special applications, also in PEEK, PET, PCTFE, PTFE compounds, etc. Standard and special dimensions are also available in elastomer materials. In a concave design, the O-ring is centred in its installation position, and can thus be subjected to higher loads. A trapezoidal back-up ring design is chosen for higher pressure loads and larger sealing gaps. Back-up rings can also be supplied in a slotted design to facilitate installation.

Back-up ring, one layer, continuous.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, continuous, concave. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted, concave. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, trapezoid, one layer, continuous, for external sealing applications. Trapezoid back-up rings reduce the sealing gap with their shape and permit higher system pressures.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, trapezoid, one layer, slotted, for external sealing applications. Trapezoid back-up rings reduce the sealing gap with their shape and permit higher system pressures.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, trapezoid, one layer, continuous, for internal sealing applications. Trapezoid back-up rings reduce the sealing gap with their shape and permit higher system pressures.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, trapezoid, one layer, slotted, for internal sealing applications. Trapezoid back-up rings reduce the sealing gap with their shape and permit higher system pressures.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, continuous, inside chamfer.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted, inside chamfer.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, continuous, outside chamfer.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted, outside chamfer.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, continuous, concave, inside chamfer. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted, concave, inside chamfer. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, continuous, concave, outside chamfer. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, one layer, slotted, concave, outside chamfer. The shape of the O-ring is retained approximately, as a result of which higher stresses are possible.

Application Range
Temperature: -50 °C / +100 °C
Standard Material: POM

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, spiral shaped, for internal sealing applications.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-up ring, spiral shaped, for external sealing applications.

Application Range
Temperature: -100 °C / +200 °C
Standard Material: PTFE

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Back-Up Ring EEP, endless, concave, measures for combination with o-rings according to ASA 568.

Application Range
Temperature: -55 °C / +110 °C
Standard Material: NBR

Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.

Contact

Contact Do you have any questions about our products or would you like to send us a message?

Feel free to contact us! Tel: 0201 86606-0

Tel: +49(0)201 86606-0

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