Skip to content
  • Innovation
  • Reliability
  • Quality
Header Back-up ring

Static Seals Back-up Ring BC – concave slotted

The Back-up Ring BC has a slotted profile with a concave groove. Due to its assembly ease, it is particularly suitable for closed grooves or 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 and are turned with standard PTFE virgin material. The required groove width increases by the width of the Back-up Rings.

Back-up Ring BC - concave slotted

Fields of application
single acting
double acting
Main use protective element for elastomeric sealants against gap extrusion
Materials PTFE; PTFE with filling material

Technical values

Materials PTFE
Pressure static up to 250 MPa static
linear up to 40 MPa
rotatory up to 15 MPa
Temperature -200°C / +260°C (material dependent)
Speed linear up to 0,5 m/s
rotatory up to 2 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 to list

Back to list

Further to Back-up ring BE - concave unslotted
Further to Back-up Ring BE – concave unslotted
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.

Our Logistics – Your Service

Our Logistics – Your Service

Innovative, environmentally friendly and efficient

In addition to innovative techniques, our logistics has 2,870 sqm of process surface. We have the world's first AutoStore storage system on two levels. Both grits are connected to each other by means of special lifters. In total, up to 31,000 containers can be stored in a very confined space. Due to this subdivision, up to 240,000 storage areas can be managed most efficiently.