Piston seal Prädifa series Z8 | 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 Z8 Piston seal Prädifa series Z8

Piston seal Prädifa series Z8

Where to Buy

Piston seal for pneumatic cylinders, single-acting. U-cup design. Short axial length.

Technical Specifications

  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C), High Temperature (< 205°C), Expanded Low and High Temperature (< -35 to 140°C), Low Temperature (< -35 C)
  • Media: Pneumatic
  • Polymer Material Options: Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN), Nitrile Butadiene Rubber (NBR, XNBR), Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®), Fluorocarbon Rubber (FKM, FPM), Ethylene Propylene Rubber (EPM, EPR, EPDM)
  • Maximum Operating Pressure: 16 bar
  • Minimum Operating Temperature: -50 to -5 °C
  • Maximum Operating Temperature: 80 to 200 °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 Z8 cylinder seal is a single-acting U-ring for pistons in pneumatic cylinders and valves. It is characterized by small axially installed dimensions. The standard range of the Z8 product series conforms to the cylinder diameters acc. to ISO 3320 and CETOP RP 52 P, RP 43 P and RP 53 P.
The Z8 product series is available in both Ultrathan® and rubber compounds. The Ultrathan® versions are characterized by extremely high resistance against wear and pressure peaks.

• Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
• Good sealing performance in extremely small assembly conditions.
• Good wear resistance.
• Low static and dynamic friction thanks to miniaturized design.
• Smooth running due to optimum lubricant-retaining sealing lip geometry.
• Easier installation.
• High temperature resistance in case of suitable compound selection.
• Excellent media resistance in case of suitable compound selection.
• Installation in closed and undercut housings.

Range of application:
For use in pneumatic cylinders.

Related Documents

Literature and Reference Materials
Pneumatic Seals--PTD3351
Compound Data Sheet NBR N3580
Compound Data Sheet TPU P5007
Installation Guidelines for Piston Seals--PTD3351
Piston seal (NBR) Z8 --PTD3351
Storage and Cleaning of Elastomer Seals--PTD3032
Ultrathan®--Piston seal Z8--PTD3351
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 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
Z81006P5007 10 6 2.55 3 -35 80 P5007
Z81006P5075 10 6 2.55 3 -45 80 P5075
Z81006V3681 10 6 2.55 3 -20 200 V3681
Z81030N3578 13 8 2.55 3 -30 100 N3578
Z81030N3580 13 8 2.55 3 -25 100 N3580
Z81030N8557 13 8 2.55 3 -35 130 N8557
Z81030V3681 13 8 2.55 3 -20 200 V3681
Z81106N3578 11 6 2.55 3 -30 100 N3578
Z81207E3676 12 7 2.55 3 -50 150 E3676
Z81207N3569 12 7 2.55 3 -45 100 N3569
Z81207N3580 12 7 2.55 3 -25 100 N3580
Z81207N8602 12 7 2.55 3 -50 80 N8602
Z81207P5007 12 7 2.55 3 -35 80 P5007
Z81207P5010 12 7 2.55 3 -30 100 P5010
Z81207P5070 12 7 2.55 3 -35 85 P5070
Z81207P5075 12 7 2.55 3 -45 80 P5075
Z81207V3681 12 7 2.55 3 -20 200 V3681
Z81207V8750 12 7 2.55 3 -25 200 V8750
Z81260P5007 12.6 7.5 2.55 3 -35 80 P5007
Z81421N3573 14 8 2.55 3 -20 150 N3573
Z81421N3580 14 8 2.55 3 -25 100 N3580
Z81421N8602 14 8 2.55 3 -50 80 N8602
Z81421V3681 14 8 2.55 3 -20 200 V3681
Z81509N3580 15 9 2.55 3 -25 100 N3580
Z81610E3676 16 10 2.55 3 -50 150 E3676
Z81610N3578 16 10 2.55 3 -30 100 N3578
Z81610N3580 16 10 2.55 3 -25 100 N3580
Z81610N8602 16 10 2.55 3 -50 80 N8602
Z81610P5007 16 10 2.55 3 -35 80 P5007
Z81610P5075 16 10 2.55 3 -45 80 P5075
Z81610V3681 16 10 2.55 3 -20 200 V3681
Z81611E3676 16 11 2.55 3 -50 150 E3676
Z81611N3578 16 11 2.55 3 -30 100 N3578
Z81611N3580 16 11 2.55 3 -25 100 N3580
Z81611N8557 16 11 2.55 3 -35 130 N8557
Z81611V3681 16 11 2.55 3 -20 200 V3681
Z81611V8550 16 11 2.55 3 -25 200 V8550
Z81812N3571 18 12 2.55 3 -35 100 N3571
Z81812N3580 18 12 2.55 3 -25 100 N3580
Z81812N3589 18 12 2.55 3 -20 100 N3589
Z81812N8557 18 12 2.55 3 -35 130 N8557
Z81812N8613 18 12 2.55 3 -50 80 N8613
Z81812P5007 18 12 2.55 3 -35 80 P5007
Z81812P5070 18 12 2.55 3 -35 85 P5070
Z81812V3681 18 12 2.55 3 -20 200 V3681
Z82014E3676 20 14 2.55 3 -50 150 E3676
Z82014E8537 20 14 2.55 3 -50 150 E8537
Z82014N3510 20 14 2.55 3 -20 150 N3510
Z82014N3580 20 14 2.55 3 -25 100 N3580
Z82014N8557 20 14 2.55 3 -35 130 N8557
Z82014N8602 20 14 2.55 3 -50 80 N8602
Z82014P5007 20 14 2.55 3 -35 80 P5007
Z82014P5075 20 14 2.55 3 -45 80 P5075
Z82014V3681 20 14 2.55 3 -20 200 V3681
Z82115N3580 21 15 2.55 3 -25 100 N3580
Z82216E3676 22 16 2.55 3 -50 150 E3676
Z82216N3578 22 16 2.55 3 -30 100 N3578
Z82216N3580 22 16 2.55 3 -25 100 N3580
Z82216N8602 22 16 2.55 3 -50 80 N8602
Z8A090N3510 100 90 4.25 4.5 -20 150 N3510
Z8A090N3580 100 90 4.25 4.5 -25 100 N3580
Z8A090P5007 100 90 4.25 4.5 -35 80 P5007
Z8A090P5075 100 90 4.25 4.5 -45 80 P5075
Z80804P5007 8 4 2.55 3 -35 80 P5007
Z80804V3681 8 4 2.55 3 -20 200 V3681
Z80804V8750 8 4 2.55 3 -25 200 V8750
Z80806E3676 8 4.8 2.3 2.7 -50 150 E3676
Z80806N3510 8 4.8 2.3 2.7 -20 150 N3510
Z80806N3571 8 4.8 2.3 2.7 -35 100 N3571
Z80806N3580 8 4.8 2.3 2.7 -25 100 N3580
Z80806N8613 8 4.8 2.3 2.7 -50 80 N8613
Z80806V3681 8 4.8 2.3 2.7 -20 200 V3681
Z80807P5007 8 4.8 2.55 3 -35 80 P5007
Z80807P5075 8 4.8 2.55 3 -45 80 P5075
Z80810N3580 8 5.45 2.3 2.7 -25 100 N3580
Z80810V3681 8 5.45 2.3 2.7 -20 200 V3681
Z80850N3573 8.5 5 2.6 3 -20 150 N3573
Z80905N3578 9 5 2.55 3 -30 100 N3578
Z81003N3571 10 3 3.5 4 -35 100 N3571
Z81006N3510 10 6 2.55 3 -20 150 N3510
Z81006N3578 10 6 2.55 3 -30 100 N3578
Z81006N3580 10 6 2.55 3 -25 100 N3580
Z81006N8602 10 6 2.55 3 -50 80 N8602
Z82216N8613 22 16 2.55 3 -50 80 N8613
Z82216V3681 22 16 2.55 3 -20 200 V3681
Z82418N3580 24 18 3.25 3.5 -25 100 N3580
Z82519N3510 25 19 3.25 3.5 -20 150 N3510
Z82519N3569 25 19 3.25 3.5 -45 100 N3569
Z82519N3580 25 19 3.25 3.5 -25 100 N3580
Z82519P5007 25 19 3.25 3.5 -35 80 P5007
Z82519P5008 25 19 3.25 3.5 -35 100 P5008
Z82519P5009 25 19 3.25 3.5 -45 95 P5009
Z82519P5075 25 19 3.25 3.5 -45 80 P5075
Z82519V3681 25 19 3.25 3.5 -20 200 V3681
Z83818E3676 38 30 3.25 3.5 -50 150 E3676
Z83818N3510N 38 30 3.25 3.5 -20 150 N3510
Z83818N3580N 38 30 3.25 3.5 -25 100 N3580
Z83818N9151 38 30 3.25 3.5 -15 100 N9151
Z83818V3681N 38 30 3.25 3.5 -20 200 V3681
Z83818V8550N 38 30 3.25 3.5 -25 200 V8550
Z84032E3676 40 32 3.25 3.5 -50 150 E3676
Z84032N3569N 40 32 3.25 3.5 -45 100 N3569
Z84032N3580N 40 32 3.25 3.5 -25 100 N3580
Z84032N8602N 40 32 3.25 3.5 -50 80 N8602
Z84032P5007 40 32 3.25 3.5 -35 80 P5007
Z84032P5010 40 32 3.25 3.5 -30 100 P5010
Z84032P5070 40 32 3.25 3.5 -35 85 P5070
Z84032P5075 40 32 3.25 3.5 -45 80 P5075
Z84032P5600 40 32 3.25 3.5 -20 80 P5600
Z84032V3681N 40 32 3.25 3.5 -20 200 V3681
Z84234N3573 42 34 3.25 3.5 -20 150 N3573
Z84234N3580N 42 34 3.25 3.5 -25 100 N3580
Z84234V3681 42 34 3.25 3.5 -20 200 V3681
Z84450P5007 44.5 36.5 3.25 3.5 -35 80 P5007
Z84522N3580N 45 37 3.25 3.5 -25 100 N3580
Z84522N8557 45 37 3.25 3.5 -35 130 N8557
Z84522N8613 45 37 3.25 3.5 -50 80 N8613
Z84522V0747 45 37 3.25 3.5 -20 200 V0747
Z84522V3681 45 37 3.25 3.5 -20 200 V3681
Z84538E8625 45.2 38 3.25 3.5 -50 150 E8625
Z84841N3578 48 41 3.25 3.5 -30 100 N3578
Z84841V3681 48 41 3.25 3.5 -20 200 V3681
Z85042N3510N 50 42 3.25 3.5 -20 150 N3510
Z85042N3573N 50 42 3.25 3.5 -20 150 N3573
Z85042N3580N 50 42 3.25 3.5 -25 100 N3580
Z85042N8602N 50 42 3.25 3.5 -50 80 N8602
Z85042P5007 50 42 3.25 3.5 -35 80 P5007
Z85042P5075 50 42 3.25 3.5 -45 80 P5075
Z85042V3681N 50 42 3.25 3.5 -20 200 V3681
Z85205N3580 52 42 4.25 4.5 -25 100 N3580
Z85205V3681 52 42 4.25 4.5 -20 200 V3681
Z82520P5007 25 19 4 4.5 -35 80 P5007
Z82520V3681 25 19 4 4.5 -20 200 V3681
Z82620N3580 26 20 3.25 3.5 -25 100 N3580
Z82822E3676 28 22 3.25 3.5 -50 150 E3676
Z82822N3580 28 22 3.25 3.5 -25 100 N3580
Z82822N8557 28 22 3.25 3.5 -35 130 N8557
Z82822P5007 28 22 3.25 3.5 -35 80 P5007
Z82822P5075 28 22 3.25 3.5 -45 80 P5075
Z82822V3681 28 22 3.25 3.5 -20 200 V3681
Z83021P5007 30 21 2.75 3.2 -35 80 P5007
Z83022E3609 30 22 3.25 3.5 -50 150 E3609
Z83022N3580 30 22 3.25 3.5 -25 100 N3580
Z83022N3589 30 22 3.25 3.5 -20 100 N3589
Z83022N8602 30 22 3.25 3.5 -50 80 N8602
Z83022V3681 30 22 3.25 3.5 -20 200 V3681
Z83023N3566 30 22.5 4.8 5.2 -5 100 N3566
Z83023N3580 30 22.5 4.8 5.2 -25 100 N3580
Z83224N3510N 32 24 3.25 3.5 -20 150 N3510
Z83224N3571 32 24 3.25 3.5 -35 100 N3571
Z83224N3580N 32 24 3.25 3.5 -25 100 N3580
Z83224N8613N 32 24 3.25 3.5 -50 80 N8613
Z83224P5007 32 24 3.25 3.5 -35 80 P5007
Z83224P5010 32 24 3.25 3.5 -30 100 P5010
Z83224P5075 32 24 3.25 3.5 -45 80 P5075
Z83224V3681N 32 24 3.25 3.5 -20 200 V3681
Z83527N3580N 35 27 3.25 3.5 -25 100 N3580
Z83527V3681N 35 27 3.25 3.5 -20 200 V3681
Z83527V8550N 35 27 3.25 3.5 -25 200 V8550
Z83628N3580 36 28 3.25 3.5 -25 100 N3580
Z83628P5007 36 28 3.25 3.5 -35 80 P5007
Z83628V8550 36 28 3.25 3.5 -25 200 V8550
Z83729N3580 37 29 3.25 3.5 -25 100 N3580
Z83731E8625 37 31 3.25 3.5 -50 150 E8625
Z8A090V3681 100 90 4.25 4.5 -20 200 V3681
Z8A090V8550 100 90 4.25 4.5 -25 200 V8550
Z8C505N3510 125 105 8.25 8.5 -20 150 N3510
Z8C505N3580 125 105 8.25 8.5 -25 100 N3580
Z8C505N8602 125 105 8.25 8.5 -50 80 N8602
Z8C505P5007 125 105 8.25 8.5 -35 80 P5007
Z8C505P5075 125 105 8.25 8.5 -45 80 P5075
Z8C505V3681 125 105 8.25 8.5 -20 200 V3681
Z8F113N3580 150 130 8.25 8.5 -25 100 N3580
Z8F113V3681 150 130 8.25 8.5 -20 200 V3681
Z8F113V8550 150 130 8.25 8.5 -25 200 V8550
Z8G014N3580 160 140 8.25 8.5 -25 100 N3580
Z8G014N8613 160 140 8.25 8.5 -50 80 N8613
Z8G014P5007 160 140 8.25 8.5 -35 80 P5007
Z8G014P5075 160 140 8.25 8.5 -45 80 P5075
Z8G014V3681 160 140 8.25 8.5 -20 200 V3681
Z8L018N3580 200 180 8.25 8.5 -25 100 N3580
Z8L018N8613 200 180 8.25 8.5 -50 80 N8613
Z8L018P5007 200 180 8.25 8.5 -35 80 P5007
Z8L018P5075 200 180 8.25 8.5 -45 80 P5075
Z8L018V3681 200 180 8.25 8.5 -20 200 V3681
Z80415N3580 4 1.5 1.5 2 -25 100 N3580
Z80504E3676 5 2.5 1.5 2 -50 150 E3676
Z80504N3510 5 2.5 1.5 2 -20 150 N3510
Z80504N3580 5 2.5 1.5 2 -25 100 N3580
Z80504N8602 5 2.5 1.5 2 -50 80 N8602
Z80630E3676 6 3 2 2.5 -50 150 E3676
Z80630N3510 6 3 2 2.5 -20 150 N3510
Z80630N3580 6 3 2 2.5 -25 100 N3580
Z80630V3681 6 3 2 2.5 -20 200 V3681
Z80640N3578 6.4 4.6 1.2 1.6 -30 100 N3578
Z80804N3580 8 4 2.55 3 -25 100 N3580
Z85705N3580 57 50.5 3.25 3.5 -25 100 N3580
Z85705N8613 57 50.5 3.25 3.5 -50 80 N8613
Z85816N3578 58 48 4.25 4.5 -30 100 N3578
Z85816N3580 58 48 4.25 4.5 -25 100 N3580
Z86353N3510N 63 53 4.25 4.5 -20 150 N3510
Z86353N3580N 63 53 4.25 4.5 -25 100 N3580
Z86353P5007 63 53 4.25 4.5 -35 80 P5007
Z86353P5075 63 53 4.25 4.5 -45 80 P5075
Z86353V3681N 63 53 4.25 4.5 -20 200 V3681
Z86353V8550N 63 53 4.25 4.5 -25 200 V8550
Z88070N3510 80 70 4.25 4.5 -20 150 N3510
Z88070N3573 80 70 4.25 4.5 -20 150 N3573
Z88070N3580 80 70 4.25 4.5 -25 100 N3580
Z88070P5007 80 70 4.25 4.5 -35 80 P5007
Z88070P5075 80 70 4.25 4.5 -45 80 P5075
Z88070V3681N 80 70 4.25 4.5 -20 200 V3681
Z88070V8550 80 70 4.25 4.5 -25 200 V8550
Z89080N3580N 90 80 4.25 4.5 -25 100 N3580
Z89080P5007 90 80 4.25 4.5 -35 80 P5007
Z89080V8550 90 80 4.25 4.5 -25 200 V8550
Z80750N3580 7.5 4.9 2 2.5 -25 100 N3580
Z80804P5075 8 4 2.55 3 -45 80 P5075
Z83224V8550 32 24 3.25 3.5 -25 200 V8550
Z81207N3573 12.0 7.0 2.55 3.0 -20 150 N3573
Z81509N3573 15.0 9.0 2.55 3.0 -20 150 N3573
Z82014N8613 20.0 14.0 2.55 3.0 -50 80 N8613
Z82014V8550 20.0 14.0 2.55 3.0 -25 200 V8550
Z82519N8602 25.0 19.0 3.25 3.5 -50 80 N8602
Z83729V9198 37.0 29.0 3.25 3.5 -25 200 V9198
Z83731EJ820 37.0 31.0 3.25 3.5 -50 150 EJ820
Z84538EJ820 45.2 38.0 3.25 3.5 -50 150 EJ820
Z81106N3580 11 6 2.55 3 -25 100 N3580
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