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Static sealing unit US+PO// (substitute 155)

  • Item 1: US sealing ring (sealing part – material: thermoplastic polyurethane TPU, hardness 90±2 ShA)
  • Item 2: PO backup ring (material: polyacetal POM)

Conditions of use​

Operating pressure [MPa] 16 25 50
Continuous exposure temperature [°C] 50 50
Smax. [mm] 0.3 0.2
Hydraulic Medium
  • mineral oils
  • oil-water emulsions HFA and HFB classes (e.g., Solsenic, Isosynth, Inwex)

Ordering example​​​​​​​

  • US Ring 230 × 220 × 5 +
    (D x d x W1)
  • PO Ring 230 × 220 × 3 //
    (D x d x W2)

Comments

  1. It is possible to manufacture sizes for items 1 and 2 other than those specified in the standard range.
Type sizeUS ring (USm) DxdxW1 PO RingDxdxW2 Cylinder outer diameterD Groove inner diameterd Groove widthUS+PO// b Assembly chamfera
72x64x572x64x2//72648.23.0
90x82x590x82x2//90828.23.0
92x84x592x84x2//92848.23.0
112x104x5112x104x2//1121048.23.0
127x119x5127x119x2//1271198.23.0
137x129x5137x129x2//1371298.23.0
154x146x5154x146x2//1541468.23.0
175x167x5175x167x2//1751678.23.0
188x180x5188x180x2//1881808.23.0
205x197x5188x180x2//2051978.23.0
216x208x5216x208x2//2162088.23.0
230x218.8x6.5230x218.8x3.5//230218.811.25.0
242x230.8x6.5242x230.8x3.5//242230.811.25.0
258x246.8x6.5258x246.8x3.5//258246.811.25.0
274x262.8x7274x262.8x3.5//274262.811.25.0
290x278.8x6.5290x278.8x3.5//290278.811.25.0
312x302x6.5312x302x2.5//312302.010.35.0
320x308.8x6.5320x308.8x3.5//320308.811.25.0
340x328.8x6.5340x328.8x3.5//340328.811.25.0
360x346.4x8.5360x346.4x5//360346.415.07.0
370x356.4x8.5370x356.4x5//370356.415.07.0
380x366.4x8.5380x366.4x5//380366.415.07.0
395x381.5x8.5395x381.5x5//395381.515.07.0
405x391.5x8.5405x391.5x5//405391.515.07.0