Back-up rings, type BU

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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.
Product details
  • Supports rings should never be mounted on the pressure side
  • Note: The dimensions d and S below are the O-ring dimensions
Technical info
  • Back - Up Ringe werden zusammen mit O-Ringen eingesetzt und bestehen aus Polyurethan oder PTFE, also aus einem härteren Material als die O-Ringe selbst. Sie verhindern die Spaltextrusion des O-Rings bei höheren Drücken. Achtung:
  • Die Maße d und s sind die O-Ring Maße
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