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Back-up rings, type BU NBR
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| Long description | Back-up rings are 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. | |
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- Tailored advice from our specialists
- Next-day delivery*
- More than 500.000 products