Back-up rings type BU

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Long description
Back-up rings type BU
Technical info
Back-up rings are normally used in combination with O-rings. Support rings of the BU type consist of polyurethane or PTFE, which is a harder material than the O-ring itself. We advise reducing the extrusion gap to 0 mm at very high pressures. As standard we supply support rings in polyurethane. Note: The dimensions d and S below are the O-ring dimensions.
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  • More than 500.000 products