Back-up ring Prädifa series V0709-90, fluoroelastomer, 90 Shore A, broad applicability, black, Parbak® | Product Series

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Diámetro interior (mm)

Diámetro exterior (mm)

Altura del elemento (mm)

Profundidad de la ranura (mm)

Temperatura mínima de servicio (°C)

Temperatura máxima de servicio (°C)

Material de la junta

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Back-up ring Prädifa series V0709-90, fluoroelastomer, 90 Shore A, broad applicability, black, Parbak® Back-up ring Prädifa series V0709-90, fluoroelastomer, 90 Shore A, broad applicability, black, Parbak®

Back-up ring Prädifa series V0709-90, fluoroelastomer, 90 Shore A, broad applicability, black, Parbak®

Hard FKM back-up ring used together with O-ring to prevent extrusion

Especificaciones técnicas

  • Medio: Hydraulic
  • Opciones de material de polímero: Fluorocarbon Rubber (FKM, FPM)
  • Temperatura mínima de funcionamiento: -25 °C
  • Temperatura máxima de funcionamiento: 200 °C
  • Unidad de medida: Length: mm
  • Mecanismo de amortiguación: No
  • Tipo de aplicación térmica: High Temperature (< 205 C) °C

Descripción completa del producto

Parbak® back-up rings are made from hard elastomers and prevent migration of O-rings into the sealing gap when subjected to high pressures.
Parbak® is a Parker standard rubber back-up ring of contoured design which improves the sealing effect and increases service life. It is intended for use in dynamic and static seal applications.

Features of Parbak® back-up rings:
• Elastic memory permits Parbak® rings to be stretched into place for assembly without preconditioning or cutting
• Continuous construction prevents damage to the O-ring seal
• Lubrication is enhanced by rubber which absorbs system fluid and does not plate out on rubbing surfaces
• For a wide temperature range from -25 °C to 200 °C
• Compatible with a wide range of fluids

Radius of the groove bottom r1 = 0.2 - 0.4 mm

Parbak® back-up ring Praedifa series is available in the following compounds:
N0300-90
V0709-90








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Productos Diámetro interior (mm) Diámetro exterior (mm) Altura del elemento (mm) Profundidad de la ranura (mm) Temperatura mínima de servicio (°C) Temperatura máxima de servicio (°C) Material de la junta
180384V0709 381.71 384.75 4.65 4.50 -25 200 V0709
180385V0709 406.6 409.64 4.65 4.50 -25 200 V0709
180387V0709 457.4 460.44 4.65 4.50 -25 200 V0709
180220V0709 35.48 37.52 3 2.90 -25 200 V0709
180222V0709 38.66 40.7 3 2.90 -25 200 V0709
180233V0709 73.18 75.22 3 2.90 -25 200 V0709
180239V0709 92.23 94.27 3 2.90 -25 200 V0709
180247V0709 117.63 119.67 3 2.90 -25 200 V0709
180250V0709 127.46 129.5 3 2.90 -25 200 V0709
180126V0709 35.38 37.66 2.18 2.20 -25 200 V0709
180129V0709 40.16 42.44 2.18 2.20 -25 200 V0709
180136V0709 51.26 53.54 2.18 2.20 -25 200 V0709
180141V0709 59.21 61.49 2.18 2.20 -25 200 V0709
180142V0709 60.78 63.06 2.18 2.20 -25 200 V0709
180007V0709 4.34 6.62 1.35 1.40 -25 200 V0709
180008V0709 5.13 7.41 1.35 1.40 -25 200 V0709
180010V0709 6.73 9.01 1.35 1.40 -25 200 V0709
180012V0709 9.91 12.19 1.35 1.40 -25 200 V0709
180014V0709 13.16 15.44 1.35 1.40 -25 200 V0709
180015V0709 14.73 17.01 1.35 1.40 -25 200 V0709
180017V0709 17.91 20.19 1.35 1.40 -25 200 V0709
180018V0709 19.51 21.79 1.35 1.40 -25 200 V0709
180023V0709 27.43 29.71 1.35 1.40 -25 200 V0709
180024V0709 29.03 31.31 1.35 1.40 -25 200 V0709
180111V0709 11.48 13.76 2.18 2.20 -25 200 V0709
180115V0709 17.83 20.11 2.18 2.20 -25 200 V0709
180121V0709 27.46 29.74 2.18 2.20 -25 200 V0709
180123V0709 30.63 32.91 2.18 2.20 -25 200 V0709
180444V0709 197.46 202.34 5.99 5.90 -25 200 V0709
180474V0709 635.1 639.98 5.99 5.90 -25 200 V0709

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