8-Ring™ Bi-Directional Pneumatic Piston Seals

PAI 8-Rings™ are designed to prevent roll and twist reducing premature failure due to nibbling, while preventing pressure trap. PAI 8-Rings™ are available in our proprietary internally lubed HNBR compounds for extended life in dry air applications.

Click here to view our 8-Ring Brochure.
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Item #

Nominal OD (mm)

Nominal ID (mm)

Nominal Width (mm)

908-10 N/A 10 N/A 5.4 N/A 1.6
908-12 N/A 12 N/A 7.4 N/A 1.6
908-16 N/A 16 N/A 11.4 N/A 1.6
908-20 N/A 20 N/A 14 N/A 2.24
908-25 N/A 25 N/A 17 N/A 3
908-32 N/A 32 N/A 24 N/A 3
908-40 N/A 40 N/A 32 N/A 3.8
908-50 N/A 50 N/A 40 N/A 3.8
908-63 N/A 63 N/A 53 N/A 3.8
908-80 N/A 80 N/A 65 N/A 5.6
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