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Static Seals 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.

Back-up Ring BE - concave unslotted

Fields of application
single acting
double acting
Main use protective element for elastomeric sealants against gap extrusion
Materials elastomers

Technical values

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
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. 

More Back-up Rings

Back-up ring BC - concave slotted
Back-up Ring BC – concave slotted
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Mr. Andreas Raidt
Your contact person for

Technology - General sealing topics, special constructions

Mr. Andreas Raidt
Head of Engineering
Do you have any questions, ideas, or suggestions? We are more than happy to assist you with advice. In person, over the phone, or digitally.

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