Static Seals

Back-up ring

Additional protection element (without sealing function) to prevent gap extrusion with sealing components. To be used for pressures above 5 MPa.

Back-up ring BE - concave unslotted

The Back-up ring BE has a closed profile with a concave groove. Due to its assembly ease and elasticity, it is particularly suitable for all installations. It has a very good O-ring support at very high und pulsating pressures through the concave design.
Back-up rings are exactly adapted to the groove height. The required groove width increases by the width of the Back-up rings. BE Back-up rings are produced per injection moulding. Standard materials are NBR and FKM, other compounds are available upon request.

fields of application
technical data
material NBR
pressure static up to 30 MPa static
linear up to 20 MPa
temperature -30°C / +80°C (material dependent)
speed up to 0,5 m/s
material FKM
pressure static up to 30 MPa
linear up to 10 MPa
temperature -20°C / +200°C (material dependent)
speed up to 0,5 m/s
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 

Your contact person regarding

Technical topics - special designs

Do you have any questions, ideas or suggestions?

We would be happy to advise you.

Personally, by phone or in digital form.

Mr. Andreas Raidt
+49 (0) 7034 2518 - 240


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