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Profile 2.09 is a sealing element which combines PTFE back-up rings with O-rings or WX-rings. Due to the preferential dynamic as well as static sealing for heavy applications, there is a separate dimensional series for this. The use of back-up rings prevents gap extrusion of the O-ring or WX-ring even at very high pressure. For trouble-free installation in closed grooves, a simple angled slit is sufficient due to its solid construction width. The slotted 2.09 PTFE support ring offers advantages in installation due to its stability. In the case of separable installation spaces, this can also be supplied in an endless design. In the case of single-acting pressurisation, a support ring is installed on the side facing away from the pressure, and on the right and left of the sealing element in the case of alternating pressurisation.
Hydraulic oil, bio-oil, brake fluid
Standard materials:
The support ring 2.09 in slotted design can always be snapped into closed installation grooves. For single-acting applications (L1), the back-up ring must be fitted first, followed by the O-ring or WX-ring. For double-acting applications (L2), the opposite second back-up ring must be fitted afterwards. To avoid damaging the seal, it must not be pulled over sharp edges. Initial lubrication must be provided for assembly and initial commissioning. In special applications (high temperature, sliding speed, specific pressure load, critical media etc.) please contact our application engineering department.
For brake fluids (DOT 4) a peroxide cross-linked EPDM material should be used. Due to the different additives in bio-oil, we recommend contacting our application technology department.
Industrial brakes, hydraulic cylinders, short-stroke cylinders, rotary actuators
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