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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Showing 1 to 100 of 228 entries

Products	Outside Diameter (mm)	Inside Diameter (mm)	Element Height (mm)	Groove Width	Minimum Working Temperature (C)	Maximum Working Temperature (C)	Seal Material	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	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z81006P5075	10	6	2.55	3	-45	80	P5075	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z81006V3681	10	6	2.55	3	-20	200	V3681	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81030N3578	13	8	2.55	3	-30	100	N3578	1__13 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81030N3580	13	8	2.55	3	-25	100	N3580	1__13 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81030N8557	13	8	2.55	3	-35	130	N8557	1__13 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__130 __6	7__N8557 __7
Z81030V3681	13	8	2.55	3	-20	200	V3681	1__13 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81106N3578	11	6	2.55	3	-30	100	N3578	1__11 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81207E3676	12	7	2.55	3	-50	150	E3676	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z81207N3569	12	7	2.55	3	-45	100	N3569	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__100 __6	7__N3569 __7
Z81207N3580	12	7	2.55	3	-25	100	N3580	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81207N8602	12	7	2.55	3	-50	80	N8602	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z81207P5007	12	7	2.55	3	-35	80	P5007	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z81207P5010	12	7	2.55	3	-30	100	P5010	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__P5010 __7
Z81207P5070	12	7	2.55	3	-35	85	P5070	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__85 __6	7__P5070 __7
Z81207P5075	12	7	2.55	3	-45	80	P5075	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z81207V3681	12	7	2.55	3	-20	200	V3681	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81207V8750	12	7	2.55	3	-25	200	V8750	1__12 __1	2__7 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__200 __6	7__V8750 __7
Z81260P5007	12.6	7.5	2.55	3	-35	80	P5007	1__12.6 __1	2__7.5 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z81421N3573	14	8	2.55	3	-20	150	N3573	1__14 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__150 __6	7__N3573 __7
Z81421N3580	14	8	2.55	3	-25	100	N3580	1__14 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81421N8602	14	8	2.55	3	-50	80	N8602	1__14 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z81421V3681	14	8	2.55	3	-20	200	V3681	1__14 __1	2__8 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81509N3580	15	9	2.55	3	-25	100	N3580	1__15 __1	2__9 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81610E3676	16	10	2.55	3	-50	150	E3676	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z81610N3578	16	10	2.55	3	-30	100	N3578	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81610N3580	16	10	2.55	3	-25	100	N3580	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81610N8602	16	10	2.55	3	-50	80	N8602	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z81610P5007	16	10	2.55	3	-35	80	P5007	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z81610P5075	16	10	2.55	3	-45	80	P5075	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z81610V3681	16	10	2.55	3	-20	200	V3681	1__16 __1	2__10 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81611E3676	16	11	2.55	3	-50	150	E3676	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z81611N3578	16	11	2.55	3	-30	100	N3578	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81611N3580	16	11	2.55	3	-25	100	N3580	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81611N8557	16	11	2.55	3	-35	130	N8557	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__130 __6	7__N8557 __7
Z81611V3681	16	11	2.55	3	-20	200	V3681	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z81611V8550	16	11	2.55	3	-25	200	V8550	1__16 __1	2__11 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__200 __6	7__V8550 __7
Z81812N3571	18	12	2.55	3	-35	100	N3571	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__100 __6	7__N3571 __7
Z81812N3580	18	12	2.55	3	-25	100	N3580	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81812N3589	18	12	2.55	3	-20	100	N3589	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__100 __6	7__N3589 __7
Z81812N8557	18	12	2.55	3	-35	130	N8557	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__130 __6	7__N8557 __7
Z81812N8613	18	12	2.55	3	-50	80	N8613	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8613 __7
Z81812P5007	18	12	2.55	3	-35	80	P5007	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z81812P5070	18	12	2.55	3	-35	85	P5070	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__85 __6	7__P5070 __7
Z81812V3681	18	12	2.55	3	-20	200	V3681	1__18 __1	2__12 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z82014E3676	20	14	2.55	3	-50	150	E3676	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z82014E8537	20	14	2.55	3	-50	150	E8537	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E8537 __7
Z82014N3510	20	14	2.55	3	-20	150	N3510	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z82014N3580	20	14	2.55	3	-25	100	N3580	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z82014N8557	20	14	2.55	3	-35	130	N8557	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__130 __6	7__N8557 __7
Z82014N8602	20	14	2.55	3	-50	80	N8602	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z82014P5007	20	14	2.55	3	-35	80	P5007	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z82014P5075	20	14	2.55	3	-45	80	P5075	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z82014V3681	20	14	2.55	3	-20	200	V3681	1__20 __1	2__14 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z82115N3580	21	15	2.55	3	-25	100	N3580	1__21 __1	2__15 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z82216E3676	22	16	2.55	3	-50	150	E3676	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z82216N3578	22	16	2.55	3	-30	100	N3578	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z82216N3580	22	16	2.55	3	-25	100	N3580	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z82216N8602	22	16	2.55	3	-50	80	N8602	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z8A090N3510	100	90	4.25	4.5	-20	150	N3510	1__100 __1	2__90 __2	3__4.25 __3	4__4.5 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z8A090N3580	100	90	4.25	4.5	-25	100	N3580	1__100 __1	2__90 __2	3__4.25 __3	4__4.5 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z8A090P5007	100	90	4.25	4.5	-35	80	P5007	1__100 __1	2__90 __2	3__4.25 __3	4__4.5 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z8A090P5075	100	90	4.25	4.5	-45	80	P5075	1__100 __1	2__90 __2	3__4.25 __3	4__4.5 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z80804P5007	8	4	2.55	3	-35	80	P5007	1__8 __1	2__4 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z80804V3681	8	4	2.55	3	-20	200	V3681	1__8 __1	2__4 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z80804V8750	8	4	2.55	3	-25	200	V8750	1__8 __1	2__4 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__200 __6	7__V8750 __7
Z80806E3676	8	4.8	2.3	2.7	-50	150	E3676	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z80806N3510	8	4.8	2.3	2.7	-20	150	N3510	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z80806N3571	8	4.8	2.3	2.7	-35	100	N3571	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-35 __5	6__100 __6	7__N3571 __7
Z80806N3580	8	4.8	2.3	2.7	-25	100	N3580	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z80806N8613	8	4.8	2.3	2.7	-50	80	N8613	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-50 __5	6__80 __6	7__N8613 __7
Z80806V3681	8	4.8	2.3	2.7	-20	200	V3681	1__8 __1	2__4.8 __2	3__2.3 __3	4__2.7 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z80807P5007	8	4.8	2.55	3	-35	80	P5007	1__8 __1	2__4.8 __2	3__2.55 __3	4__3 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z80807P5075	8	4.8	2.55	3	-45	80	P5075	1__8 __1	2__4.8 __2	3__2.55 __3	4__3 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z80810N3580	8	5.45	2.3	2.7	-25	100	N3580	1__8 __1	2__5.45 __2	3__2.3 __3	4__2.7 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z80810V3681	8	5.45	2.3	2.7	-20	200	V3681	1__8 __1	2__5.45 __2	3__2.3 __3	4__2.7 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z80850N3573	8.5	5	2.6	3	-20	150	N3573	1__8.5 __1	2__5 __2	3__2.6 __3	4__3 __4	5__-20 __5	6__150 __6	7__N3573 __7
Z80905N3578	9	5	2.55	3	-30	100	N3578	1__9 __1	2__5 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81003N3571	10	3	3.5	4	-35	100	N3571	1__10 __1	2__3 __2	3__3.5 __3	4__4 __4	5__-35 __5	6__100 __6	7__N3571 __7
Z81006N3510	10	6	2.55	3	-20	150	N3510	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z81006N3578	10	6	2.55	3	-30	100	N3578	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-30 __5	6__100 __6	7__N3578 __7
Z81006N3580	10	6	2.55	3	-25	100	N3580	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z81006N8602	10	6	2.55	3	-50	80	N8602	1__10 __1	2__6 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8602 __7
Z82216N8613	22	16	2.55	3	-50	80	N8613	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-50 __5	6__80 __6	7__N8613 __7
Z82216V3681	22	16	2.55	3	-20	200	V3681	1__22 __1	2__16 __2	3__2.55 __3	4__3 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z82418N3580	24	18	3.25	3.5	-25	100	N3580	1__24 __1	2__18 __2	3__3.25 __3	4__3.5 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z82519N3510	25	19	3.25	3.5	-20	150	N3510	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z82519N3569	25	19	3.25	3.5	-45	100	N3569	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-45 __5	6__100 __6	7__N3569 __7
Z82519N3580	25	19	3.25	3.5	-25	100	N3580	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z82519P5007	25	19	3.25	3.5	-35	80	P5007	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-35 __5	6__80 __6	7__P5007 __7
Z82519P5008	25	19	3.25	3.5	-35	100	P5008	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-35 __5	6__100 __6	7__P5008 __7
Z82519P5009	25	19	3.25	3.5	-45	95	P5009	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-45 __5	6__95 __6	7__P5009 __7
Z82519P5075	25	19	3.25	3.5	-45	80	P5075	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-45 __5	6__80 __6	7__P5075 __7
Z82519V3681	25	19	3.25	3.5	-20	200	V3681	1__25 __1	2__19 __2	3__3.25 __3	4__3.5 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z83818E3676	38	30	3.25	3.5	-50	150	E3676	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-50 __5	6__150 __6	7__E3676 __7
Z83818N3510N	38	30	3.25	3.5	-20	150	N3510	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-20 __5	6__150 __6	7__N3510 __7
Z83818N3580N	38	30	3.25	3.5	-25	100	N3580	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-25 __5	6__100 __6	7__N3580 __7
Z83818N9151	38	30	3.25	3.5	-15	100	N9151	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-15 __5	6__100 __6	7__N9151 __7
Z83818V3681N	38	30	3.25	3.5	-20	200	V3681	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-20 __5	6__200 __6	7__V3681 __7
Z83818V8550N	38	30	3.25	3.5	-25	200	V8550	1__38 __1	2__30 __2	3__3.25 __3	4__3.5 __4	5__-25 __5	6__200 __6	7__V8550 __7

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Piston seal Prädifa series Z8 | Product Series

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

Technical Specifications

Full Product Description

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