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The 606 type single-acting, single lip asymmetric piston seal is designed with precision trimmed sealing lips to provide effective bore sealing in light and medium-duty applications. The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are trimmed at an angle to give optimal rod sealing performance. The 606 is designed to have an interference in the seal housing groove. The outer dynamic lip is shorter and more robust to improve sealing and compression set characteristics over conventional, symmetrical U-rings. The seal is recommended for use in single-acting piston seal applications. It can also be fitted back-to-back in separate grooves for use in double-acting applications.
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