Piston sealing set Prädifa series KS, Ultrathan® | Product Series

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Piston sealing set Prädifa series KS, Ultrathan® Piston sealing set Prädifa series KS, Ultrathan®

Piston sealing set Prädifa series KS, Ultrathan®

Where to Buy

Piston accumulator sealing set for media separation gas/fluid. Extremely wear resistant and superior leak tightness. Polyurethane u-cup design.

Technical Specifications

  • Media: Hydraulic
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Maximum Operating Pressure: 350 bar, 250 bar
  • Minimum Operating Temperature: -40 to -30 °C
  • Maximum Operating Temperature: 80 °C
  • Maximum Surface Speed: 3 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C)
  • Pressure Rating: High Pressure (< 500 bar)
Safety Warning

Full Product Description

The KS piston sealing set made of wear-resistant Ultrathan® has been developed specifically for sealing floating pistons in dual media piston-type accumulators. It consists of two U-rings with differences in terms of design and compound. The shape of the seals makes the KS piston sealing set ideally suited for reliable, low-friction separation of different pressure fluids (oil/gas). Other applications include industrial shock absorbers and hydro-pneumatic elements such as feed and braking units, pressure converters, pressure transducers and working cylinders.

• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Assembly on one-part piston is possible.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Dimensions according to ISO 5597.
• Installation in closed and undercut housings.
• Further dimensions of machined series with short lead times available.

Range of application:
For hydraulic piston accumulators. Other applications include industrial shock absorbers and hydro-pneumatic elements such as feed and braking units, pressure converters, pressure transducers and working cylinders.

Related Documents

Literature and Reference Materials
Hydraulic Seals--PTD3350
Compound Data Sheet TPU P5008
Installation Guidelines for Piston Seals--PTD3350
Storage and Cleaning of Elastomer Seals--PTD3032
Ultrathan®--Sealing set for piston accumulators KS--PTD3350
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
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Products Outside Diameter (mm) Inside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
KS004000710 40 32 5.7 6.3 -30 80 P5008 / P5007
KS005000710 50 40 7.3 8 -30 80 P5008 / P5007
KS006300710 63 53 7.3 8 -30 80 P5008 / P5007
KS006300712 63 53 7.3 8 -30 80 P5010 / P5007
KS008000710 80 65 11.4 12.5 -30 80 P5008 / P5007
KS008600710 85.73 70.73 11.4 12.5 -30 80 P5008 / P5007
KS010000710 100 85 11.4 12.5 -30 80 P5008 / P5007
KS016000714 160 140 14.5 16 -30 80 P5001 / P5010
KS018000710 180 160 14.5 16 -30 80 P5008 / P5007
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