Rod Seals The SRUV features an asymmetrical double lip piston seal constructon thatprovides the most suitable sealing for light and medium load applicatons.when the secondary seal is used with the SRT support gasket,it can be applied to heavy duty seals. The double lip design improves the stability of the seal . Equipped with a V-shaped NBR rubberring to ensure that the main sealing lip and piston rod maintain a certain pressing force under low pressure or no pressure .Especially recommendde for the atermarket The seals are divided into low temperatu reresistant and high temperature resistant,Low temperature resistant for conventonal products,injecton molded with Cypher SPRSEALS high performance polyurethane U1 material, easy to install and low temperature resistant. When you share with us the specific and detailed model of your excavator, the professional engineers of Cypher SPRSEALS will provide you with a complete and reliable seal solution Tel: +86 020 3201 7236 +86 180 2406 9172 Email: sprseals@126.com Please leave your contact information so that our company personnel can contact you Thank you: my boss