Piston seal Prädifa series Z5 | Product Series

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Outside Diameter (mm)

Inside Diameter (mm)

Element Height (mm)

Groove Width

Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

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Piston seal Prädifa series Z5

Piston seal Prädifa series Z5

Where to Buy

Piston seal for pneumatic cylinders, double-acting. U-cup design with integrated guiding function. High-temperature version available.

Technical Specifications

  • Maximum Operating Temperature: 80 to 200 °C
  • Thermal Application Type: High Temperature (< 205°C), Low Temperature (< -35 C), Expanded Low and High Temperature (< -35 to 140°C), Standard Moderate Temperature (-35 to 100°C)
  • Media: Pneumatic
  • Polymer Material Options: Nitrile Butadiene Rubber (NBR, XNBR), Fluorocarbon Rubber (FKM, FPM), Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN)
  • Maximum Operating Pressure: 16 bar
  • Minimum Operating Temperature: -50 to -20 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The Z5 pneumatic piston seal is a double U-ring with an integral guiding surface for double-acting pistons. The seal has two sealing lips for particularly high sealing performance.

• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• Multi-functional sealing element. The guiding area at the sealing element performs the guiding function in the cylinder. However, due to its geometry the sealing element is not suitable for absorption of high radial forces or long strokes.
• Prevents metallic contact between the piston and cylinder. Ideal for light-metal and plastic cylinders (ridging).
• Good wear resistance.
• Smooth running due to optimum lubricant-retaining sealing lip geometry.
• Easier installation.
• Assembly on one-part piston is possible.
• High temperature resistance in case of suitable compound selection.
• Excellent media resistance in case of suitable compound selection.
• Installation in open housings with retaining collar.

Range of application:
Pneumatic cylinders

Related Documents

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
Literature and Reference Materials
Pneumatic Seals--PTD3351
Compound Data Sheet NBR N3578
Installation Guidelines for Piston Seals--PTD3351
Piston seal Z5--PTD3351
Storage and Cleaning of Elastomer Seals--PTD3032
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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
Z5A088N3578 100 88 21 23 -30 100 N3578
Z5A088N8602 100 88 21 23 -50 80 N8602
Z5A089N3578 100 90 16 18 -30 100 N3578
Z5A089V3681 100 90 16 18 -20 200 V3681
Z5C511N3578 125 113 15 17 -30 100 N3578
Z5C513N3578 125 113 21 23 -30 100 N3578
Z5D017N3569 130 120 17 19 -45 100 N3569
Z5D017N3578 130 120 17 19 -30 100 N3578
Z5D017N8602 130 120 17 19 -50 80 N8602
Z5E028N3578 140 128 21 23 -30 100 N3578
Z5F014N3569 150 140 17 19 -45 100 N3569
Z5F014N3578 150 140 17 19 -30 100 N3578
Z5G045N3510 160 145 26 29 -20 150 N3510
Z5G045N3578 160 145 26 29 -30 100 N3578
Z5G045V3681 160 145 26 29 -20 200 V3681
Z5L085N3578 200 185 26 29 -30 100 N3578
Z51610N3578 16 10 10.5 12 -30 100 N3578
Z51812N3578 18 12 10.5 12 -30 100 N3578
Z52014N3578 20 14 10.5 12 -30 100 N3578
Z52518N3578 25 18 12 13 -30 100 N3578
Z52822N3578 28 22 10.5 12 -30 100 N3578
Z53023N3578 30 23 12 13 -30 100 N3578
Z53225N3578 32 25 12 13 -30 100 N3578
Z53225V3681 32 25 12 13 -20 200 V3681
Z53528N3578 35 28 12 13 -30 100 N3578
Z54033N3573 40 33 12 13 -20 150 N3573
Z54033N3578 40 33 12 13 -30 100 N3578
Z54033V3681 40 33 12 13 -20 200 V3681
Z54538N3578 45 38 12 13 -30 100 N3578
Z54538V3681 45 38 12 13 -20 200 V3681
Z55043N3578 50 43 12 13 -30 100 N3578
Z55043N8602 50 43 12 13 -50 80 N8602
Z55043V3681 50 43 12 13 -20 200 V3681
Z55244V8550 52 44 13 15 -25 200 V8550
Z55446N3578 54 46 13 15 -30 100 N3578
Z55446N8526 54 46 13 15 -35 130 N8526
Z56353N3578 63 53 17 19 -30 100 N3578
Z56353N8602 63 53 17 19 -50 80 N8602
Z56353V3681 63 53 17 19 -20 200 V3681
Z56356N3573 63 56 12 13 -20 150 N3573
Z56356N3578 63 56 12 13 -30 100 N3578
Z56356N8602 63 56 12 13 -50 80 N8602
Z56356V3681 63 56 12 13 -20 200 V3681
Z57007N3578 70 62 13 15 -30 100 N3578
Z57007V3681 70 62 13 15 -20 200 V3681
Z57666N3578 76 66 18 20 -30 100 N3578
Z58067N3578 80 72 13 15 -30 100 N3578
Z58067N8526 80 72 13 15 -35 130 N8526
Z58067V3681 80 72 13 15 -20 200 V3681
Z58070N3578 80 70 18 20 -30 100 N3578
Z58070V3681 80 70 18 20 -20 200 V3681
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