Piston seal Prädifa series B7, Ultrathan® | Product Series

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Piston seal Prädifa series B7, Ultrathan® Piston seal Prädifa series B7, Ultrathan®

Piston seal Prädifa series B7, Ultrathan®

Where to Buy

Piston seal for hydraulic cylinders, single-acting, polyurethane u-cup design. For high-pressure applications. Robust seal profile for harshest operating conditions. ISO 5597, ISO 6020.

Technical Specifications

  • Pressure Rating: Standard moderate Temperature (-35 C to 100 C)
  • Thermal Application Type: High Temperature (< 205°C), Standard Moderate Temperature (-35 to 100°C), Low Temperature (< -35 C)
  • Media: Hydraulic
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Maximum Operating Pressure: 400 bar, 250 bar
  • Minimum Operating Temperature: -45 to -20 °C
  • Maximum Operating Temperature: 80 to 110 °C
  • Maximum Surface Speed: 0.5 m/sec, 1.0 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
Safety Warning

Full Product Description

The B7 Ultrathan® piston seal is a lip seal with interference fit. It is extremely wear resistant, ensures reliable load holding and is suitable for hydraulic high-pressure applications.

• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Easier installation.
• Suitable for fully automatic installation
• Assembly on one-part piston is possible.
• Insensitive to pressure peaks.
• 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:
Mainly for the sealing of pistons in heavy duty applications in mobile and stationary hydraulics.

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®--Piston seal B7--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
Communities, Blogs & Industry Links
Industry Hydraulics
Industry Pneumatics
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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
B7A080P5008 100 80 14.5 16 -35 100 P5008
B7A085P5008 100 85 11.4 12.5 -35 100 P5008
B7A085P5010 100 85 11.4 12.5 -30 80 P5010
B7A090P5008 100 90 6.7 7.5 -35 100 P5008
B7A090P5600 100 90 6.7 7.5 -25 85 P5600
B7A090P6000 100 90 6.7 7.5 -35 110 P6000
B7B004P5008 110 90 15 16.5 -35 100 P5008
B7B004P6030 110 90 15 16.5 -35 110 P6030
B7B008P5008 110 90 8 9 -35 100 P5008
B7B008P5009 110 90 8 9 -30 80 P5009
B7B050P5008 115 98 14.5 16 -35 100 P5008
B7C050P5008 121 111.1 9.5 10.5 -35 100 P5008
B7C050P5009 121 111.1 9.5 10.5 -30 80 P5009
B7C120P5008 120 105 11.4 12.5 -35 100 P5008
B7C210P5008 125 100 18.2 20 -35 100 P5008
B7C215P5008 125 105 14.5 16 -35 100 P5008
B7C215P5010 125 105 14.5 16 -30 80 P5010
B7C219P5008 125 110 9.6 10.6 -35 100 P5008
B7C219P6000 125 110 9.6 10.6 -35 110 P6000
B7D115P5212 130 115 9.6 10.6 -35 100 P5212
B7E010P5008 140 120 12 13 -35 100 P5008
B7E050P5008 145 115 18 20 -35 100 P5008
B7F024P5008 152.4 136.5 10 11 -35 100 P5008
B7G035P5008 160 135 18.2 20 -35 100 P5008
B7G040P5008 160 140 14.5 16 -35 100 P5008
B7H050P5008 170 150 14.5 16 -35 100 P5008
B7J004P5008 180 150 18 20 -35 100 P5008
B7L007P5008 200 170 22.7 25 -35 100 P5008
B7L010P5008 200 175 18.2 20 -35 100 P5008
B7L013P5008 200 185 9.6 10.6 -35 100 P5008
B7M020P5008 220 200 15 16.5 -35 100 P5008
B7N010P5008 240 215 15 16.5 -35 100 P5008
B7N120P5008 250 220 22.7 25 -35 100 P5008
B7N125P5008 250 225 18.2 20 -35 100 P5008
B7N130P5008 250 230 15 16.5 -35 100 P5008
B7Q210P5008 320 290 20 22 -35 100 P5008
B71308P5010 13 8 4.2 4.7 -30 80 P5010
B71408P5010 14 8 5.7 6.3 -30 80 P5010
B71504P5010 15 10 4.2 4.7 -30 80 P5010
B71608P5008 16 8 5.7 6.3 -35 100 P5008
B71608P5010 16 8 5.7 6.3 -30 80 P5010
B71609P5010 16 10 4.5 5 -30 80 P5010
B71610P5008 16 10 5.7 6.3 -35 100 P5008
B71610P5010 16 10 5.7 6.3 -30 80 P5010
B71810P5010 18 10 5.7 6.3 -30 80 P5010
B72011P5008 20 12 4.2 4.7 -35 100 P5008
B72012P5008 20 12 5.7 6.3 -35 100 P5008
B72012P5080 20 12 5.7 6.3 -40 85 P5080
B72012P5600 20 12 5.7 6.3 -25 85 P5600
B72015P5008 25 15 7.3 8 -35 100 P5008
B72015P5600 25 15 7.3 8 -25 85 P5600
B74032P5009 40 32 5.7 6.3 -45 95 P5009
B74032P5010 40 32 5.7 6.3 -30 80 P5010
B74033P5008 40 33 8 9 -35 100 P5008
B74304P5008 43 33 7.3 8 -35 100 P5008
B74535P5008 45 35 7.3 8 -35 100 P5008
B75010P5008 50 35 10 11 -35 100 P5008
B75016P5008 50 42 5.7 6.3 -35 100 P5008
B75040P5008 50 40 7.3 8 -35 100 P5008
B75040P5009 50 40 7.3 8 -45 95 P5009
B75040P5010 50 40 7.3 8 -30 80 P5010
B75040P5600 50 40 7.3 8 -25 85 P5600
B75041P5008 50 40 10 11 -35 100 P5008
B75043P5008 50.8 41.17 6.2 7 -35 100 P5008
B75209P5008 52 42 7.3 8 -35 100 P5008
B75409P5008 54 44 7.3 8 -35 100 P5008
B75409P6000 54 44 7.3 8 -35 110 P6000
B75545P5008 55 45 7.3 8 -35 100 P5008
B75703P5009 57 41 11.4 12.5 -45 95 P5009
B76009P5008 60 50 10 11 -35 100 P5008
B76032P5008 63 48 8.6 9.5 -35 100 P5008
B76050P5000 60 50 7.3 8 -20 100 P5000
B76050P5008 60 50 7.3 8 -35 100 P5008
B76055P5008 65 55 7.3 8 -35 100 P5008
B76055P6000 65 55 7.3 8 -35 110 P6000
B76348P5008 63 48 11.4 12.5 -35 100 P5008
B76353P5008 63 53 7.3 8 -35 100 P5008
B76353P5009 63 53 7.3 8 -45 95 P5009
B76353P5600 63 53 7.3 8 -25 85 P5600
B76355P5008 63 55 5.7 6.3 -35 100 P5008
B76805P5008 68 58 9.5 10.5 -35 100 P5008
B77011P5008 70 60 7.5 8.5 -35 100 P5008
B77012P5008 70 60 12 13 -35 100 P5008
B77027P5008 75 63 8.7 9.5 -35 100 P5008
B78008P5008 80 65 8.6 9.5 -35 100 P5008
B78008P6000 80 65 8.6 9.5 -35 110 P6000
B78008P6030 80 65 8.6 9.5 -35 110 P6030
B78010P5008 80 70 6.7 7.5 -35 100 P5008
B78011P5008 80 70 12 13 -35 100 P5008
B78060P5008 80 60 14.5 16 -35 100 P5008
B78065P5008 80 65 11.4 12.5 -35 100 P5008
B79075P5008 90 75 11.4 12.5 -35 100 P5008
B79580P5008 95 80 11.4 12.5 -35 100 P5008
B72212P5008 22 12 8 9 -35 100 P5008
B72214P5010 22 14 5.5 6.1 -30 80 P5010
B72416P5008 24 16 5.7 6.3 -35 100 P5008
B72516P5008 25 17 4.5 5 -35 100 P5008
B72517P5008 25 17 5.7 6.3 -35 100 P5008
B72517P5080 25 17 5.7 6.3 -40 85 P5080
B72517P5600 25 17 5.7 6.3 -25 85 P5600
B72520P5008 25 18 5 5.6 -35 100 P5008
B72520P6000 25 18 5 5.6 -35 110 P6000
B72620P5010 26 20 4.5 5 -30 80 P5010
B72810P5008 28 20 7 8 -35 100 P5008
B73222P5008 32 22 7.3 8 -35 100 P5008
B73224P5008 32 24 5.7 6.3 -35 100 P5008
B73226P5008 32 25 5 5.6 -35 100 P5008
B73422P5008 34 22 8.5 9.5 -35 100 P5008
B73524P5008 35 25 6 6.8 -35 100 P5008
B73525P5008 35 25 7.3 8 -35 100 P5008
B73525P6000 35 25 7.3 8 -35 110 P6000
B73626P5010 36 26 7 8 -30 80 P5010
B73810P5008 38.1 30.1 5.7 6.3 -35 100 P5008
B74018P5010 40 28 10 11 -30 80 P5010
B74030P5008 40 30 7.3 8 -35 100 P5008
B74030P5010 40 30 7.3 8 -30 80 P5010
B74030P5600 40 30 7.3 8 -25 85 P5600
B74031P5008 40 30 10 11 -35 100 P5008
B74032P5008 40 32 5.7 6.3 -35 100 P5008
B75703P5008 57 41 11.4 12.5 -35 100 P5008
B7C120P6000 120.0 105.0 11.4 12.5 -35 110 P6000
B71408P5008 14 8 5.7 6.3 -35 100 P5008
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