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Piston layer sealing ring UWt

Item 1. Internal sealing ring (sealing part – material: thermoplastic polyurethane TPU, hardness 90±2 ShA)
Item 2. External sealing ring (sealing part – material: thermoplastic polyurethane TPU, hardness 90±2 ShA)
Item 3. Anti-extrusion ring PPW // (material: polyacetal POM)

Conditions of use

Operating pressure [MPa] 32 75 100
Continuous exposure temperature [°C] 80 50
Smax. [mm] 0.7 0.4 0.3
Hydraulic medium:
  • Mineral oils
  • Oil-water emulsions (class HFA and HFB, e.g., Solsenic, Isosynth, Inwex)
 
Maximum operating speed [m/s]:
  • Continuous: 0.2
  • Intermittent: 0.5

Ordering example

UWt Ring 320×290×24
(D × d × W)

Comments

  1. Custom versions of seals are available upon request:
    • For continuous operation (in oil) at temperatures up to 100 °C.
    • With nominal dimensions other than those specified in the standard range (e.g., G×W 17.5×24).
    • For maintenance/repair purposes, oversized standard sizes are offered with dimensions: D+1.2; D+2.5; D+3.8; D+5.0 [mm].
Type/SizeDxdxW Inside diameterD Outside diameterd Groove widthL Assembly chamfera
135×110×241351102612.5
160×135×241601352612.5
170×145×241701452612.5
180×155×241801552612.5
200×175×242001752612.5
220×195×242201952612.5
230×205×242302052612.5
240×215×242402152612.5
245×220×242452202612.5
250×225×242502252612.5
260×235×242602352612.5
270×245×242702452612.5
275×250×242752502612.5
280×255×242802552612.5
285×260×242852602612.5
290×265×242902652612.5
300×275×243002752612.5
320×290×243202902612.5
350×320×243503202612.5
360×330×243603302612.5
365×335×243653352612.5
370×340×243703402612.5
380×350×243803502612.5
385×355×243853552612.5
390×360×243903602612.5
400×370×244003702612.5
410×380×244103802612.5