Piston sealing set Prädifa series CP, Caveseal® | Product Series

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Inside Diameter (mm)

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Seal Material

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Piston sealing set Prädifa series CP, Caveseal® Piston sealing set Prädifa series CP, Caveseal®

Piston sealing set Prädifa series CP, Caveseal®

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Piston sealing set, double-acting, PTFE slipper seal design. Low friction. Suitable for o-ring grooves. For limited dynamic conditions.

Technical Specifications

  • Maximum Operating Temperature: 80 to 200 °C
  • Media: Hydraulic
  • Polymer Material Options: Polytetrafluoroethylene (PTFE, mPTFE, TFM, Polon®), Ultra-High Molecular Weight Polyethylene (UHMW-PE)
  • Maximum Operating Pressure: 160 bar
  • Minimum Operating Temperature: -40 to -25 °C
  • Maximum Surface Speed: 4 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C), High Temperature (< 205°C), Expanded Low and High Temperature (< -35 to 140°C)
  • Pressure Rating: Low Temperature (< -35 C
Safety Warning

Full Product Description

The double-acting CP sealing set featuring a Caveseal design consists of a PTFE slide ring and an elastomer O-ring as a preloading element. The sealing set is suitable for dynamic applications as an alternative to an O-ring in situations requiring optimum sealing performance and friction. The Caveseal design enables smallest grooves.
Due to the material combination of the slide ring (PTFE) and the O-ring (elastomer), this product is suitable for a wide range of applications, especially for aggressive media and/or high temperatures. An extensive selection of compounds is available for specific application profiles.

• Good sealing performance in extremely small assembly conditions.
• Excellent wear resistance.
• Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
• Good energy efficiency due to low friction.
• Assembly on one-part piston is possible.
• High temperature resistance assured by suitable O-ring compound selection.
• Adaptable to nearly all media thanks to high chemical resistance of the sealing ring and large O-ring compound selection.
• Short axial assembly length.
• Short radial assembly depth.
• Installation in closed and undercut housings.
• Available in diameters from 4 to 3000 mm.
• Can be used in existing O-ring grooves.
• Additional sizes of machined products available on short notice.

Range of application:
The CP profile range has been designed exclusively to replace standard O-rings. For dynamic applications we recommend our OA (pneumatics) or OE (hydraulics) profile ranges.

Piston sealing set Praedifa series CP is available in the follwing compounds:
08401 - Industrial purpose
PS314 - Heavy duty
08402 - High temperature
08403 - Low temperature
08404 - General purpose

Related Documents

Literature and Reference Materials
PTFE Seals Design Guide--PTD3354
Caveseal--Piston sealing set CP--PTD3354
Installation Guidelines for Piston Seals--PTD3350
Storage and Cleaning of Elastomer Seals--PTD3032
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
Sealing solutions for the mobility of the future
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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
CP010001208401A 10 7.1 2.4 2.4 -30 110 PS012
CP016001208401B 16 11.5 3.6 3.6 -30 110 PS012
CP040001208401C 40 33.8 4.8 4.8 -30 110 PS012
CP045001208401C 45 38.8 4.8 4.8 -30 110 PS012
CP060001208401D 60 50.6 7.1 7.1 -30 110 PS012
CP085001208401D 85 75.6 7.1 7.1 -30 110 PS012
CP088902708401D 88.9 79.5 7.1 7.1 -30 110 PS027
CP130001208401E 130 117.8 9.5 9.5 -30 110 PS012
CP008001208404A 8 5.1 2.4 2.4 -40 150 PS012
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