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

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Inside Diameter (mm)

Outside Diameter (mm)

Element Height (mm)

Groove Depth (mm)

Minimum Working Temperature (°C)

Maximum Working Temperature (°C)

Tätningsmaterial

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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®

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

Tekniska specifikationer

  • Medier: Hydraulic
  • Polymermaterial, alternativ: Fluorocarbon Rubber (FKM, FPM)
  • Lägsta driftstemperatur: -25 °C
  • Maximal arbetstemperatur: 200 °C
  • Måttenhet: Length: mm
  • Dämpningsmekanism: No
  • Termisk tillämpning, typ: High Temperature (< 205°C)
Safety Warning

Fullständig produktbeskrivning

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








Relaterade dokument

Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test
Communities, Blogs & Industry Links
Industry Oil & Gas
O-Rings Knowledge Base
Literature and Reference Materials
Multiway Coolant Valve Seal
O-Ring Handbook--PTD5705
O-Ring Handbook, section Parbak® back-up rings--PTD5705
Compound Data Sheet FKM V0709
Storage and Cleaning of Elastomer Seals--PTD3032
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Produkter Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Depth (mm) Minimum Working Temperature (°C) Maximum Working Temperature (°C) Tätningsmaterial
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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