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Back-up rings, type BU polyurethane
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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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Interested in buying products?
Want to know more about the prices or order directly? This is possible when you are affiliated with a dealer in your area. Do you want to sell products via Kramp as a dealer? Then sign up!
- Tailored advice from our specialists
- More than 500.000 products
- Next-day delivery*